Dissertations / Theses on the topic 'Motorcycle'
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1
Giles, Christopher G. "Motorcycle steering behaviour." Thesis, University of Leeds, 1985. http://etheses.whiterose.ac.uk/8167/.
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The thinking behind the choice of a data recording method that will be used to gather information on the frequency responses of motorcycles is discussed. The design and development of a microcomputer based data acquisition system (including transducers and signal conditioning circuitry) is described, along with the test and data processing strategies to be used. A new theoretical model is developed which includes a frame flexibility that allows the rear wheel of the motorcycle to yaw and camber about an inclined axis. The effects of changes in axis position and stiffness are investigated, and stability results are presented for the straight-running condition. The measurement of this stiffness (and that relating to a flexibility involving the front frame) for a large motorcycle, by both static and dynamic methods, is described. The nature of the flexibility involving the front wheel assembly is examined, and conclusions are drawn regarding the validity of theoretical models and the use of appropriate stiffness measurement methods. Theoretical frequency responses of a motorcycle to steering torque inputs are calculated for the straight-running condition. An attempt is made to interpret the responses by studying the effects on them of various motorcycle parameter alterations, and comparing these with the changes in handling performance as predicted by riders' experiences with real machines. The common notion that there exists a trade-off between stability and responsiveness is examined. Two new theoretical models, each representing a motorcycle towing a type of trailer, are developed and the stability results are presented. The effects of trailer parameter variations are described and recommendations relating to the design and use of the combinations are made. A description is given of the design and development of a microcomputer controlled, modal motion simulator, which employs stepper motors driving a scale model motorcycle. The simulation strategy and software are discussed and improvements are suggested.
2
Hjort, Andrej. "Prototyp för analys av körteknik med motorcykel." Thesis, Umeå universitet, Institutionen för tillämpad fysik och elektronik, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-108245.
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Mikroelektromekaniska system eller MEMS, används i allt större utsträcknining i fordon för att samla mätresultat om vinkel samt acceleration som sedan kan användas i samband med andra system i fordonet för ökad säkerhet och stabilitet. I bilar har smarta system använts sedan länge för airbag-system och ABS bromsar. Då just MEMS-sensorer har fördelar som pris, storlek och tillgänglighet ses allt fler möjligheter även för utveckling kring motorcyklar. Målet med detta projekt har varit att ta fram en prispressad och lite enklare produkt där föraren kan se information om sin lutning och acceleration med hjälp av en accelerometer och gyroskop . Tester har gjorts med produkten fastmonterad på motorcykel på data såsom lutning och acceleration efter ett så kallat komplementärfilter. Detta har gjorts för att se vilka värden på filtret som fungerar bäst för en eventuell färdig produkt. Utifrån testerna kan man utgöra att motorvibrationer har en påverkan för mätning av acceleration och vinkel. Dessa minskar i viss mån med vibrationsdämpande lösningar såsom gummiupphängningar men för att kunna få ut mätbara värden implementeras ett mjukvaru lågpassfilter samt ett komplementärfilter.
3
Xu, Jianhua, and 徐建华. "Motorcycle taxi drivers and motorcycle ban policy in the Pearl River Delta." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2010. http://hub.hku.hk/bib/B45449880.
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The Best PhD Thesis in the Faculties of Architecture, Arts, Business &Economics, Education, Law and Social Sciences (University of HongKong), Li Ka Shing Prize, 2009-2010published_or_final_version
Sociology
Doctoral
Doctor of Philosophy
4
Adinegoro, Yusuf. "Using instrumented motorcycle data to study road factors influencing motorcycle crash risk." Thesis, Queensland University of Technology, 2018. https://eprints.qut.edu.au/121454/1/Yusuf_Adinegoro_Thesis.pdf.
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This thesis developed a new methodological framework for studying how road conditions contribute to motorcycle crash risk. Using specific engineering approaches, the data collected by an instrumented motorcycle were transformed into measures of road geometry and road surface quality. Their contributions to crash risk were then examined using an epidemiological case-crossover design. The method was tested using crash and road data from the Gillies Range Road in Northern Queensland.
5
Renzi, Tommaso Maria. "XR - 125 electric motorcycle." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2018. http://amslaurea.unibo.it/16252/.
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Progetto di un motoveicolo da corsa/stradale elettrico da 12 Kw, corrispondente ad una cilindrata pari a 125 cc.
Caratteristica principale sarà l’innovazione di parte della struttura della moto in relazione alla propulsione “green”.
6
Gullers, Johan. "The Motorcycle Milk Bar." Thesis, Umeå universitet, Arkitekthögskolan vid Umeå universitet, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-138333.
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7
Gouws, Aldo. "An investigation into the promotional activities employed by the motorcycle businesses in the Nelson Mandela Metropolitan area." Thesis, Port Elizabeth Technikon, 2004. http://hdl.handle.net/10948/250.
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The motorcycle industry is well established in South Africa, but has not nearly reached its full potential. This study investigates how this situation can be improved by enhancing the promotions of motorcycles in the Nelson Mandela Metropolitan Municipality (NMMM) area under investigation. Motorcycle businesses in this area currently compete with a disadvantage in the transportation market. Motor vehicles are assembled in this area whereas motorcycles are not, and this creates various work opportunities and brand loyalty for the motor industry. The Government also offers import rebates to motor vehicle exports. The cost, prejudicial attitudes and road safety of motorcycles contribute toward the difficulties faced by the motorcycle industry, which prevent the growth of this market. This market usually requires potential customers to have a passion for motorcycles to turn them into actual customers. To overcome these difficulties an investigation was conducted to determine which promotional activities the motorcycle businesses in the NMMM area employ. This study identifies the motorcycle businesses’ promotional shortcomings and makes suggestions for improvement. Promotional activities are vital since motorcycles are at a disadvantage when compared to motor vehicles in the NMMM area. One of the best ways the motorcycle businesses can successfully compete in the transportation market is to make use of promotions to make potential customers aware and enhance their support of the motorcycle businesses. For this reason the promotional variables (advertising, direct marketing, personal selling, sales promotions and public relations) should be exploited to its fullest to enhance potential customers’ support of motorcycles. This process can also create brand loyalty and equity, which will retain customers over the long term. Communication with a market is essential to achieve this and to inform and remind potential customers about the products available.
8
Hok, Sirany Nate Hongkrailert. "Factors related to motorcycle accidents among motorcycle riders in Salaya, Phutthamonthon District, Nakhon Pathom Province, Thailand /." Abstract, 2005. http://mulinet3.li.mahidol.ac.th/thesis/2548/cd375/4737941.pdf.
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9
Yuan, Fenge, and s3087590@student rmit edu au. "Stabilizing control design of a motorcycle." RMIT University. School of Electrical and Computer Engineering, 2007. http://adt.lib.rmit.edu.au/adt/public/adt-VIT20080111.113637.
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This thesis solves the stabilizing control of an autonomous motorcycle. The control of an autonomous motorcycle is a challenging and interesting problem in the field because the plant is under-actuated, unstable and nonlinear. Two major problems that have not been considered in the literature are explicitly solved in our work: (i) the robust control problem of the plant subject to uncertainty and exogenous disturbance; (ii) the non-local stabilization of the nonlinear plant. To achieve the first goal, we propose a robust H_infty controller based on the linearized system, which provides a significant improvement in dealing model uncertainty and disturbance attenuation in comparison with those controllers given by classical linear design tools. To achieve the second goal, we propose a nonlinear controller based on the combination of a nonlinear forwarding method with several other methods for the nonlinear plant through identifying an appropriate upper triangular s tructure of the nonlinear system. This yields a stability region, the whole upper space above the level ground, such that the trajectory starting from any position in the upper hemi-sphere with arbitrary initial velocities converges to the upright position. Both results are novel and first results of their kinds in control of an autonomous motorcycle. Computer simulations verify the effectiveness of the proposed controllers.
10
Shaheed, Mohammad Saad B. "Factors affecting motorcycle fatalities in Kansas." Thesis, Kansas State University, 2010. http://hdl.handle.net/2097/7020.
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Master of ScienceDepartment of Civil Engineering
Sunanda Dissanayake
Over the past few years, motorcycle fatalities have increased at an alarming rate in the United States. Motorcycle safety issues in Kansas are no different from the national scenario. Accordingly, this study attempted to investigate motorcycle crashes in Kansas to identify critical characteristics and to evaluate the effect of those on motorcycle crash injury outcomes. State-level motorcycle rider fatality rates were investigated while considering various factors including helmet laws, using generalized least squares regression modeling. A detailed characteristic analysis was carried out for motorcycle crashes, using Kansas crash data. Comparisons were made between several aspects of motorcycle crashes and other vehicle crashes. Analysis using Logistic regression was performed on Kansas motorcycle crash data to identify factor affecting fatal motorcycle crashes. In addition, a survey was conducted focusing on identifying motorcycle rider behaviors, helmet usage patterns, perception towards helmet laws in Kansas, potential problems, crash contributory factors, and difficulty levels of different motorcycle maneuvers to execute. Ordered probit modeling was used to identity factors contributing to increased severity of Kansas motorcycle riders involved in crashes. Results from state-level modeling showed statistically significant relationships between motorcycle fatality rates in a given state as well as several other factors. These factors included weather-related conditions, helmet laws, per capita income, highway mileage of rural roads, population density, education, demographic distributions, and motorcycle registrations in the state. The study showed that states with mandatory helmet laws had 5.6% fewer motorcycle fatalities per 10,000 registrations and 7.85% fewer motorcycle fatalities per 100,000 populations. Characteristic analysis of motorcycle crashes in Kansas revealed that motorcycle maneuvers such as overtaking, motorcyclists being older than 40 years, using motorcycle helmets, using motorcycle helmets and eye protection simultaneously, daytime riding, crashes occurring on roadside shoulders, and influence of alcohol among the riders during crashes had higher risk of ending up as a fatal motorcycle crash in Kansas. Results from the survey conducted among motorcycle riders in Kansas revealed that 71% of respondents thought drivers of other vehicles were the single biggest threat to their own safety. Survey results also revealed that 64% of respondents opposed a mandatory law requiring motorcycle riders and passengers to wear helmets in Kansas. Result from the ordered probit modeling of motorcycle rider injury severity showed that overturned and fixed-object motorcycle crashes, helmet use, younger motorcycle riders, speeding, presence of alcohol among motorcycle riders, and good weather contributed to increased severity of injury of motorcycle riders involved in crashes in Kansas.
11
Styles, M. J. "Predictive engineering processes for motorcycle dynamics." Thesis, Cranfield University, 2004. http://dspace.lib.cranfield.ac.uk/handle/1826/10715.
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This
study is an investigation into the use of computer aided handling and stability
analysis for motorcycles. In particular it considers Triumph Motorcycles Ltd., delving
into
Triumph's background, their strategy and the likelihood of them using virtual
techniques for stability and handling analysis.
Additionally, this work reviews current knowledge of motorcycle dynamics analysis
and builds on it.
A novel way of studying the steering feel has been developed by analysing the response
of the steer torque equation for the Sharp 1971 [1] and 1994 [2] models. The individual
contributors to this
equation are identified and the important ones are investigated
further. One conclusion of this study is that in reduced cornering and camber conditions
the steer
angle of the motorcycle, for a given steering input torque, increases when
compared to standard operating conditions. The steer angle also increases further as the
speed increases.
An update to a previous motorcycle model [3] has been made by revising the parameter
set, so that it is more applicable to a modem sports motorcycle. The rider model and
relaxation
length description have also been improved upon. The results show that the
new motorcycle has been made more manoeuvrable by the alterations to the parameters.
An optimal preview steering control system for cars [4] has been taken, improved upon
and used with the
newly developed motorcycle model discussed above. The results
from this novel work allow a designer to alter parameters and see how this affects the
motorcycles steering demands, path following, etc. It was shown that an increase in
the front wheel inertia makes the
motorcycle feel like the steering is heavier, and an
increase in the front wheel radius and wheelbase make the
steering feel lighter.
Future work into non-linear
analysis is recommended and improved rider and tyre
modelling is also desired.
12
Daniello, Allison Louise. "Injury Mechanisms in Roadside Motorcycle Collisions." Diss., Virginia Tech, 2013. http://hdl.handle.net/10919/20381.
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More motorcyclists are fatally injured each year in guardrail crashes than passengers of any other vehicle, while only accounting for three percent of the vehicle fleet. Since motorcyclists account for a high percentage of these fatalities, the goal of zero deaths on the road cannot be achieved without addressing the safety of motorcyclists. The objective of this research was to determine the factors that lead to serious or fatal injury in motorcycle barrier crashes, given that a crash occurred. The likelihood of serious or fatal injury in barrier crashes was significantly influenced by both barrier type and rider trajectory after striking the barrier. A national study of motorcyclist fatality risk using the Fatality Analysis Reporting System (FARS) and General Estimates System (GES) showed that crashes with guardrail than crashes were about 7 times more likely to be fatal than those with the ground, based on the most harmful event reported. An analysis of 1,000 riders in barrier crashes in three states showed that the odds of serious injury were 1.4 times greater in guardrail crashes than in concrete barrier crashes. These analyses did not take into account the trajectory of the rider after striking the barrier, since this was unknown. The police accident report for 350 barrier crashes in New Jersey was used to determine the rider trajectory in those crashes. Being ejected from the motorcycle after impacting the barrier significantly increased the odds of serious injury over crashes where the rider was not ejected.
While providing insight into factors influencing injury severity, these analyses do not provide an understanding of the nature of injuries incurred in these crashes. To further understand how injuries were caused in motorcycle-barrier crashes, we developed a methodology for determining injury mechanisms in motorcycle-barrier collisions. Using this methodology, we investigated 9 serious motorcycle-to-barrier crashes. In these crashes, as well as in an analysis of 106 barrier crashes in Maryland, the thorax and lower extremities most commonly suffered serious injury. Of particular concern are the posts and top of the rail, both of which can lead to lacerations and blunt trauma.
Ph. D.
13
Van, Vlerah Abagail Lea. "Women's Participation in Endurance Motorcycle Challenges." Bowling Green State University / OhioLINK, 2013. http://rave.ohiolink.edu/etdc/view?acc_num=bgsu1382372924.
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14
Rosenlund, Felix. "Motorcykeln och dess framtid : -Ett koncept för en säkrare och miljövänligare motorcykel." Thesis, Linnéuniversitetet, Institutionen för design (DE), 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-53063.
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This paper focuses on the aspects of safety for the user of a motorcycle, why and how we ride, and how one can impact the general interest in motorcycles among a younger generation in Sweden today through design and technology. Further it stands to represent my own thoughts on the matter regarding what is the key element of attraction in a motor vehicle among young people today. This paper has worked as the base for my research during my bachelors’ thesis and also includes some of my personal thoughts surrounding my design process which ultimately resulted in a motorcycle concept aimed at the younger generations.
15
Nichols, Harry O. "An applied market area study of the Harley-Davidson Motor Company in the New York City region." Morgantown, W. Va. : [West Virginia University Libraries], 1999. http://etd.wvu.edu/templates/showETD.cfm?recnum=696.
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Thesis (M.A.)--West Virginia University, 1999.Title from document title page. Document formatted into pages; contains vi, 45 p. : ill. (some col.), maps (some col.). Includes abstract. Includes bibliographical references (p. 30).
16
Holz, Raquel da Fonseca. "Realidade da motocicleta no ambiente urbano com foco no Brasil." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2014. http://hdl.handle.net/10183/108507.
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A tese apresenta um panorama global e atual da inserção da motocicleta em países representativos dos sete continentes, com ênfase no Brasil. Para isso, foram feitas análises sobre quatro elementos da realidade da motocicleta no mundo: (i) a propriedade, analisada através dos dados das frotas mundiais; (ii) os diferentes usos das motocicletas; (iii) os acidentes com motociclistas, através de uma reflexão sobre dados de acidentalidade, suas consequências para a sociedade e possíveis intervenções; (iv) as práticas de operação das motocicletas empregadas em algumas cidades do mundo. Após, foi proposto o desenvolvimento de procedimentos padronizados para a coleta de dados na identificação do corredor virtual e a criação de um método para análise desses corredores, quanto as suas diversas características. O método proposto incorpora análises quantitativas e qualitativas da operação da motocicleta em corredor virtual. Foram escolhidos como parâmetros para a criação do método alguns elementos físicos para caracterizar o corredor virtual, como velocidades praticadas pelas motocicletas ao estarem operando no corredor, acelerações, desacelerações e larguras do corredor virtual. Foi realizada, também, uma análise observacional do comportamento de cada motocicleta pesquisada, com ênfase nas particularidades dos movimentos. A aplicação do método envolveu a análise de dados coletados na cidade de Porto Alegre, Rio Grande do Sul. Na aplicação do método, os resultados mostram que a velocidade média adquirida pela motocicleta não depende somente da variável largura do corredor virtual. Também identificam as larguras mínimas e máximas usadas pelos motociclistas nos corredores virtuais, nos ambientes estudados. O estudo de caso mostrou que a aplicação do método proposto é simples, sendo possível a sua transferência a outras realidades brasileiras.This thesis presents a global and current overview of the insertion of motorcycle in representative countries of the seven continents, with an emphasis on Brazil. For that, four elements about reality’s motorcycle in the world were analyzed: (i) ownership, analyzed through the data of world fleet; (ii) the different uses of motorcycles; (iii) accidents involving motorcyclists, its consequences for society and interventions possible; (iv) operation practices currently in place in some cities of the world. Beyond that, it was development standardized procedures to collection data that identified the lane sharing and was created a method to analyzing these lanes, about its some characteristics. The method analyzed quantitative and qualitative data around the motorcycle’s operation on a lane sharing, and the parameters used were some physical elements to characterize the lane sharing, as speeds practiced by the motorcycles in operation in the corridor, accelerations, decelerations and widths of the lane sharing. Was also performed an observational analysis on the behavior of each motorcycle researched, with emphasis in a particularities of the movements. The model was applied based on data collect in the city of Porto Alegre, Rio Grande do Sul. The results showed that the average speed acquired by motorcycle not depends only on the width of the lane sharing. Also identified the minimum and maximum widths used by motorcyclists in lane sharing in the study’s place. The case showed that the application of the proposed method is simple, and may be transferred to other Brazilian’s realities.
17
Henriksson, Sofia. "Concept development of communications-enabled motorcycle helmet." Thesis, KTH, Maskinkonstruktion (Inst.), 2009. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-99619.
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Ett innovativt koncept av en motorcykel hjälm utvecklades i syfte att införa ett kommunikationssystem i hjälmen. Hjälmen var tänkt att användas av motorcykelburna poliser i distriktet West Midlands i Stor Britannien. Konceptet innebar att bland annat en videokamera, GPS och ett mikrofon- och hörlurssystem skulle integreras i hjälmen tillsammans med andra komponenter som specificerades av användargruppen. Tre konceptutvecklades och evaluerades. Det slutgiltigt valda konceptet bearbetades genom materialanalys och dimensionering. Specifika komponenter valdes utför att uppfylla användarkraven och hjälmens olika delar utvecklades för att rymma dessa. Säkerhets bestämmelser, tillverkningsmetoder och användaraspekter tog i beaktande under utvecklingsarbetet. Konceptutveckling resulterade i en innovativ motorcykelhjälm, utformad för att rymma kommunikationssystemet i toppen och på baksidan av hjälmen. Det föreslogs att hjälmens yttre skal ska tillverkas av fiberförstärkt plast och den inre, skyddande stoppningen ska bestå av EPS-skum med varierande densitet för olika områden i hjälmen. Videokameran placeras ovan på hjälmen och kan samla in bilder om polismannen så önskar. Kamerans typ, montering undersöktes och en modul för att integrera kameran i hjälmen konstruerades. Dessutom togs riktlinjer för tillverkning av en prototyp av hjälmen fram, på grund av kostnader kom den föreslagna prototypen och det utvecklade konceptet att skilja sig åt på flera punkter.An innovative motorcycle helmet design concept was developed in order to fit an inter-helmet communications system to be used by the West Midlands police in the United Kingdom. The concept was to include: video camera, GPS and microphone system among other components specified by the target user. Three concepts were developed and evaluation methods were used to choose among them. The final concept was then further developed by conducting material and dimension analysis and choosing components and designing parts. Safety regulations, manufacturing methods and usability aspects were taking into consideration during the process. The developments led to an innovative helmet shape to store the components of communication system on the top and back of the helmet. The helmet shell should be of fiber reinforced plastic and for the protective padding EPS foam with different densities for different part of the padding is suggested. On top of the helmet a video camera would be placed in order to collect footage of suspect situations the policeman might encounter. Camera type, mounting of the camera and camera module design were investigated. Guidelines for making a prototype to be used when testing the helmet communications system were stated. Because of costs the concept and the prototype have essential differences.
18
Byrd, Anne S. "Dominant Masculinity Construction in a Motorcycle Club." Thesis, Fielding Graduate University, 2017. http://pqdtopen.proquest.com/#viewpdf?dispub=10624207.
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This study uses life-history interviews with militarized men to describe a version of masculinity constructed in the local context of a non-profit motorcycle club. The study describes the details of one group’s specific gender nature, the result of which expands and challenges our understanding of the masculinity master narrative. The findings establish that both hegemonic and nonhegemonic attitudes, beliefs, and behaviors co-exist in the local dominant masculine norm, thereby disrupting traditional distinctions of masculinity as being either hegemonic or nonhegemonic. Key future research implications support the study of context as essential to the study of gender construction, challenge descriptions of masculinity as being either hegemonic or nonhegemonic, and posit the relevance of veteran peer groups in supporting post-military resocialization.
19
Boyd, Robert Allen Michael. "Design of a modular motorcycle windshield wiper." Thesis, Massachusetts Institute of Technology, 2010. http://hdl.handle.net/1721.1/59897.
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Thesis (S.B.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 2010.Cataloged from PDF version of thesis.
Includes bibliographical references (p. 35).
Motorcycle windshield wipers are essentially non-existent in the United States. Customer and market research reveals a demand for such a product. This paper explores the product viability of a modular motorcycle windshield wiper. The design and manufacturing of an alpha prototype, customer and market research, material selection, appropriate form, and prototype testing are all documented. The design of the alpha prototype utilizes two switches and a flip-flop circuit coupled with an h-bridge to achieve the desired oscillatory wiper motion. Throughout the design size, power, form, and manufacturing are taken into consideration. The objective of the paper is to lay the groundwork for a successful product innovation.
by Robert Allen Michael Boyd.
S.B.
20
Harris, Ian Richard. "Myth and reality in the motorcycle subculture." Thesis, University of Warwick, 1986. http://wrap.warwick.ac.uk/106994/.
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Divided into two parts, the thesis seeks to provide a detailed explanation for the emergence and historical development of the outlaw motorcycle subculture as well as the essential structural and Ideological focii which underpin the phenomenon in its contemporary form. Part I charts the progressive expansion from its initial appearance as a specifically distinct form of deviant subculture in Southern California in the latter part of the 1950s to what is today an extremely prolific international, intergenerational and largely interracial mass subculture. Focussing upon the different stages which have characterised the subculture's process of solidification, it examines the series of media-induced moral panics which have periodically elevated it to public prominence and makes intelligible the complex interrelationship between the various disparate contextual strands which have over time coalesced to form that broad strata of motorcycle-borne folk devil ubiquitously and invariably erroneously described as 'Hells Angels'. Part II cuts through the heavily myth-laden skin of the contemporary outlaw motorcycle subculture as it exists in its archetypical form throughout the world, exposing the no less rich layers of subcultural activity underneath. Commencing with an analysis of the genesis of and quasi-criminal in-group behaviour common to that highly-ritualised and tightly-knit subcultural formation, the one-percenter outlaw motorcycle club, it examines the symbolic order of meaning which gives substance to the lives of the membership, looks at the collective decision-making processes which ensure internal solidity, and charts the career pattern of a would-be club member from casual 'hangaround' to full blown 1%er. The remainder of Part II still further separates the myth from the reality by breaking down the very potent barriers of popular imagery which have hitherto so successfully rendered all previous sociological accounts of the outlaw motorcycle subculture absolutely meaningless. It looks at the spheres of politics, race, sex and crime and re-evaluates conventional wisdom on biker attitudes to and involvement in each.
21
Bie, Yu-Wun, and 別宇文. "Investigate Motorcycle Driving Behavior By Motorcycle Simulator." Thesis, 2010. http://ndltd.ncl.edu.tw/handle/81448208162638767420.
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碩士龍華科技大學
工程技術研究所
98
Due to the recent rise of oil prices and environmental awareness, making many short-range commuter driving people away from gradually replaced by other means of transport is more fuel-efficient vehicles, due to the convenience of transportation, mobility, easy parking, cheap price, features, motorcycles in Taiwan is the largest number of the most popular means of transport, so the relatively high proportion of traffic accidents. Traffic situation in Taiwan, the number of motorcycles licensed for gradually rose. According to Ministry statistics show, motorcycle by the 2003 year in December of 7,755,339 units to the 2010 year in April of 14,614,091 units, 6,858,752 units during the period increased. Shows the situation of people driving a motorcycle instead increased. Metropolitan area in Taiwan, the number of motorcycles has long exceeded the original design of the road capacity, coupled with the rise of the current wave of cycling, not only made the lane drive very crowded, but the number of vehicles large amount of the land area is small, making road traffic status becomes very crowded and complicated, leading to traffic accidents are frequent, light should be increased use of motorcycles on the public in the training and knowledge, this study design a truly reproduce the actual conditions of the motorcycle road conditions driving simulator, aim to be the driver for the motorcycle road for emergency assessment of the response of other experiments. This study, the 3D virtual scene by motorcycle driving simulator to conduct driving simulation experiment set the scene for the general flat road to motorcycle riding to be moving vehicles, to observe and discuss the subjects were in the motorcycle driving simulation for incident response.
22
Lee, Yu-Shuan, and 李雨勳. "A Study on Hydraulic Motorcycle Semi-Active Suspension Systems for Motorcycles." Thesis, 2003. http://ndltd.ncl.edu.tw/handle/73262960556487110441.
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碩士國立雲林科技大學
機械工程系碩士班
91
To improve the handling and driving comfort of cars, only a few researches were done on active and semi-active suspension systems recently. However, the application of active or semi-active suspension systems to motorcycle is quite few. Hence, the topic of this research is on motorcycle The reasons are because of the simple structure and better performance than active suspension system. In this paper, a proportional throttling valve was developed and applied to build a semi-active suspension system on a 125cc scooter. Moreover, a hydraulic motorcycle suspension test bench was designed to verify the effect of semi-active suspension system. Due to the suspension of motorcycles is a nonliner, time-varing system. A fuzzy logic controller is proposed to control the semi-active suspension system. In addition, this report also shows the design of a manually operated three-step adjustable suspension system. The system can be adjusted according to different road conditions. The main advantages are its competitive price, simple design and better performance.
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Chuang, Hsiang-Chun, and 莊向鈞. "The Auxiliary Motorcycle Lift Stand and Actuator of Heavy Motorcycle." Thesis, 2006. http://ndltd.ncl.edu.tw/handle/20460089674908468036.
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碩士元智大學
機械工程學系
94
The motorcycle is an important means of transportation in densely populated in Taiwan. The government opens importing of heavy-duty motorcycles, which result in significant growth rate in the number of quantity. Due to the weight of heavy-duty motorcycle, research and develop of the auxiliary jack-up device may improve the safety of parking. The weight of the heavy-duty motorcycle is in direct proportion to the volume of exhaust gas. The motorcycle body weight, driver and personal equipment all together weight more than 200 kilograms. Because the sizes of Orientals are relatively small, parking on one side of the motorcycle many damage the shock absorbing system. Unsafe parking practice may also lifting mechanism. In this thesis, calculation of the oil pressure valve specification, simulation of motorcycle, and human factor engineering of the auxiliary equipment are taken into consideration during development of the prototype system. The results show the auxiliary equipment performs beautifully meeting the design specifications. It can park the motorcycle on uneven pathway with ease.
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Stanglmayr, Maximilian, and Maximilian Bäumler. "Towards Safer Rides: Measuring Motorcycle Dynamics with Smartphones." 2020. https://publish.fid-move.qucosa.de/id/qucosa%3A72437.
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Motorradfahrer gehören zu den am meisten gefährdeten Verkehrsteilnehmern im Straßenverkehr. Häufig ist die Unfallursache ein Kontrollverlust auf Landstraßen, der durch Ausnutzung des physikalischen Potenzials in Form von größeren Schräglagenwinkeln vermieden werden könnte. Gleichzeitig sind in der Realität gefahrene Schräglagen über eine größere Gruppe von Fahrern und eine längere Strecke unbekannt, was vor allem auf die erforderliche spezielle Messtechnik zurückzuführen ist. Der Schwerpunkt liegt daher auf der Entwicklung eines kostengünstigen Messverfahrens zur Messung der Schräglagenwinkel von Motorrädern. Smartphones zeichnen sich in der Regel durch integrierte Inertialsensoren aus, die für die Erfassung der Fahrdynamik von Motorrädern geeignet sind. Mit Hilfe einer auf die Anforderungen zugeschnittenen Smartphone-App zur Erfassung von Messdaten auf dem Motorrad werden die Daten der Sensoren aufgezeichnet. Anschließend werden mittels einer Offline-Auswertung die Drehwinkel zwischen dem Smartphone und dem Motorrad-Koordinatensystem bestimmt, die inertialen Messdaten transformiert und der Schräglagenwinkel berechnet. Ein wesentlicher Bestandteil ist die Validierung der entwickelten Messkette durch einen Vergleich der Ergebnisse mit einem hochpräzisen Messsystem. Dieser wurde auf verschiedenen Strecken zur Bestimmung der Datenqualität durchgeführt. Als Machbarkeitsstudie diente eine Probandenstudie, die die Praxistauglichkeit der Messkette bestätigte. Die Studienergebnisse werden zusätzlich auszugsweise dargestellt und diskutiert. Die erfolgreiche Validierung auf verschiedenen Strecken, die Praxistauglichkeit der Datenerfassung und die Genauigkeit des Messsystems ermutigen dazu, die Smartphone-App auf ein größeres Panel von Testpersonen auszurollen und damit Daten über ein größeres Fahrerkollektiv zu erheben.:Introduction, State of Research, Methods, Measurement Chain Verification, Results and Discussion, ConclusionMotorcyclists are among the most vulnerable road users in road traffic. Often, the cause of accidents is a loss of control on rural roads which could be averted by making use of the physical potential in terms of larger lean angles. At the same time, in reality driven lean angles over a larger group of riders and a longer route are unknown which is mainly due to the special measuring technology required. The focus is therefore on the development of a low-cost measurement method for measuring the lean angles of motorcycles. Smartphones are usually characterized by integrated inertial sensors, which are suitable for the acquisition of motorcycle driving dynamics. Employing a smartphone app tailored to the requirements for collecting measurement data on the motorcycle, the data of the sensors are recorded. During the offline evaluation, the rotation angles between the smartphone and the motorcycle coordinate system are determined, the inertial measurement data are transformed and the roll angle is calculated. An essential part is the alignment of the developed measurement chain with a high-precision measurement system. This was carried out on different routes and thus the data quality was determined. As a feasibility study, a test person study with several participants was carried out, which confirmed the practical suitability of the measurement chain. Hence, the study outcomes are briefly shown and discussed. The successful validation on different routes, the practical suitability of the data acquisition and the accuracy of the measurement system encourage to roll out the smartphone app to a larger panel of test persons and thus to collect data on a larger driver collective.:Introduction, State of Research, Methods, Measurement Chain Verification, Results and Discussion, Conclusion
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Hsieh, Wan-Cheng, and 謝萬澄. "Motorcycle brake disc design." Thesis, 2013. http://ndltd.ncl.edu.tw/handle/78618871488382727338.
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碩士國立勤益科技大學
機械工程系
101
The braking system is one of the most important factors in riding motorcycles. In this study, we analyze the static strength of motorcycle’s brake disks. This research uses two types of models to analyze different thickness disks by finite element method(FEM). The results of stresses and displacements can obtain the optimal thickness design. The analysis uses Solidworks simulation to design four thicknesses, 2.5mm, 3mm, 3.5mm, 4mm, under 500kg, 1000kg, 1500kg, 2000kg forces. This research provides better motorcycle braking performance by numerical analses to obtain the stress distributions and displacements.
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Zhong, Zi-Ren, and 鍾子仁. "Motorcycle Driving Behavior Analysis." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/97414123704602085745.
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碩士國立中興大學
電機工程學系所
105
To get a motorcycle driver''s license, the steps generally includes a health checkup, a knowledge test, and a road test. The road test is to evaluate the drivers’ maneuver capability in a simulated yard but not on real road networks and it cannot be assessed whether the drivers obey traffic rules and have good driving behaviors after they got a license. Therefore, we propose a motorcycle driving behavior analysis system, which can evaluate driver behavior persistently and determine whether the driver has safe driver behaviors. To recognize different driving behaviors, the driving behavior analysis system includes an Arduino diagnosis scanner to sample ECU data including engine rpm, battery energy, throttle, and intake and so on. It is also equipped with a gyroscope and an accelerometer to capture motion data of a motorcycle. The Arduino diagnosis scanner sends data to a smart phone via Bluetooth and the Android App uploads the data to a server for further processing. Finally, the server aggregates data and per-forms RBM neural network to train classifiers for on-line driving behavior recognition and analysis. To validate our system, we collect data of different driving behaviors under different traffic conditions and conduct experiments to evaluate the classification performance. The experimental results show that the proposed system can effectively recognize different driving behaviors. The future works are to extend it for more complex driving behaviors and apply the system for driving assistant and monitoring.
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Hou, Meng-Liang, and 侯孟良. "Study of Characteristic for Novel Motorcycle InjectorStudy of Characteristic for Novel Motorcycle Injector." Thesis, 2008. http://ndltd.ncl.edu.tw/handle/81479802504997826299.
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碩士大葉大學
車輛工程學系碩士班
96
DCP is composed of two major components: a fuel pump module and an injector. With a prescribed voltage waveform imposed on DCP, the inner solenoid valve is first activated to start the compression stage for expelling air bubble. After that, the valve is immediately closed to build up the high pressure inside DCP for forcing gasoline passing through the nozzle. In response to the shutdown of electrical power, DCP restores to its original rest state in the end of the ejection stage. The gasoline liquid jet with adequate inertia momentum would overcome the liquid surface tension and viscous force for accomplishing the droplet injection. The present study has successfully constructed the test and measurement platform to determine the baseline mass flowrate characteristics for a DCP device. To establish a useful database for the future development of the injection technology for motorcycles, this work is also extended to explore the variations of injection performance at different settings of environmental pressure, temperature, and voltage of battery. This Study sets up to control program by the LabVIEW, which can controls every experiment parameter control condition of DCP fuel injection, such as operative frequency of the fuel injection, the operative time of the fuel injection sprays, etc. It uses CCD to pick a fluent situation of the fuel injection that can observes the difference flows of key parameter of the voltage and vacuum pressure to DCP injection and traditional fuel injection.
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Luo, Wen-Yuan, and 羅文垣. "Application of Motorcycle Riding Simulation Game for Evaluation of Motorcycle Safety Cognition Learning." Thesis, 2016. http://ndltd.ncl.edu.tw/handle/22358760699181463308.
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碩士淡江大學
運輸管理學系碩士班
104
In Taiwan, on average every 1.7 persons have a motorcycle. Motorcycles are in large quantity. The injury severity for the accidents involved with motorcycles is serious; approximately 90% of road accidents involve motorcycles. Motorcycle safety education is an important issue in Taiwan. The motorcycle safety problem for young people is serious particularly. This study developed a motorcycle riding simulation game system using a smartphone platform to investigate whether the game could assist younger players (i.e., learners) to acquire motorcycle safety cognition. The questionnaires and riding behaviors are used to measure players’ learning performances. The analysis results of the pretest questionnaire, posttest questionnaire, and riding behaviors recorded in the game system showed whether or not the participants had driving licenses that the level of participants’ motorcycle safety cognition before the learning experiment was insufficient. Participants did not know the meaning of certain traffic markings, signs and signals identifying the minor road at an intersection. The Right of way rules at intersections were another problem. After playing the game, the improvement in the participants’ understanding of the meaning of markings, signs and signals was very significant. However, improvement was limited in learning right of way rules at intersections not controlled by signals.
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LIN, PEI-CHI, and 藺培志. "The effect of motorcycle parking control on the parking behavior of motorcycle users." Thesis, 1997. http://ndltd.ncl.edu.tw/handle/86206774998238697410.
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碩士國立交通大學
交通運輸研究所
85
The study is undertaken to explore the parking behavior of motorcycle users by using the Stated Preference Method. A two- stage approach is used to follow the principles of experimental design of Stated Preference Method. We try to explore the attitude of motorcycle users and their parking demand characteristics, and find the range of related attribute values in the first stage in order to design the levels of specific attributes. Based on the information derived from the first stage, the normal distribution method was used to design the stated preference questionnaires. A face-to-face interview was conducted to collect enough data to establish the parking behavior model for motorcycle users. Some long term, medium term, and short term parking control strategies were also derived and tested in this study.The empirical results show the tests of significance and goodness of fit for multinomial logit model are pretty well. Adding the terms of sex and income will significantly increase the explanatory ability. According to the results of policy simulation, we find the motorcycle users tend to drive farther away or move to illegal-parking in response to high parking charge, and unlikely move to public transportation under single or loose restrained control strategy. Offering the space for motorcycle parking, implementing motorcycle parking charge, training traffic assistants for parking enforcement, and encouraging the private to open their parking spaces for the public are suggested for short term management. Augmenting parking control area and privatization of parking management are suggested for the medium term. In the long run, the roadside motorcycle parking should be prohibited everywhere.
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Yang, Shang-Feng, and 楊上鋒. "Technical Evaluation of Electric Motorcycle." Thesis, 2001. http://ndltd.ncl.edu.tw/handle/71567817168543645788.
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碩士國立臺灣大學
機械工程學研究所
89
The work described in this thesis is to develop a new evaluation method that helps designers to gain better understanding of consumer demand. It has been carried out by two stages. Theory of statistics and contemporary information were applied in the first stage of the work in order to establish a proper procedure to provide quantified trend prediction and find the important attributes & prediction of trend for traditional motorcycles . According to the eight attributes and the special ones from electric motorcycles, a set of evaluation criteria was obtained. From the relation of attributes performance and cost utility, the evaluation of the difference between the motorcycle system variants is implanted. The result indicate that, before the breakout of cell technology, there is little hope for electric motorcycles to survive in the free market competition. The cell switching scheme and extension of cell lifetime will remarkably enhance the competitiveness of electrical motorcycles.
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Jang, Wee-Lain, and 詹愉嵐. "Modal Analysis of Motorcycle Structures." Thesis, 1993. http://ndltd.ncl.edu.tw/handle/07750846135084634839.
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碩士國立成功大學
機械工程研究所
81
For simple structure, we can easily calculate the moment of inertia of the structure by numerical method. If the structure is complex, such as the motorcycle frame, the results obtained from the numerical may not be accurate. On the other hand, modal testing can be applied for estimating the moment of inertia. In this investigation, the moment of inertia of a square steel boxis estimated from the measured six rigid body modesby modal testing. The comparision between the experimental and the numerical results shows good agreement. Applying the same experimental method, the moment of inertia of the motorcycle frame is obtained. At the same time, the modal testing by impluse excitation is applied to obtain the dynamic properties of motorcycles. Ployreference time domain technique is used to identify the structural dynamic properties. From the identified mode shapes, the weak points of the structures can be observed and the improvement can be made. Since the first natural frequency is close to the idal engine speed, the frame system should be modified to avoid the the resonance.
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Wang, Chi-Yuan, and 王記源. "Research on Motorcycle System Dynamics." Thesis, 1993. http://ndltd.ncl.edu.tw/handle/24206802210290269801.
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Yan, Lie. "Algorithms for Computing Motorcycle Graphs." Thesis, 2001. http://hdl.handle.net/10754/264693.
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PENG, A.-QUAN, and 彭阿全. "A study of motorcycle handling." Thesis, 1990. http://ndltd.ncl.edu.tw/handle/02828440427013414554.
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XIAO, YIN-HONG, and 蕭印宏. "A study of motorcycle stability." Thesis, 1990. http://ndltd.ncl.edu.tw/handle/30371472896259666101.
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Hsieh, Jung-Ling, and 謝榮凌. "Attenuation of Motorcycle Intake Noise." Thesis, 2003. http://ndltd.ncl.edu.tw/handle/15272341169376924126.
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碩士逢甲大學
機械工程學所
91
This research, basing on acoustic theory, deduces the governing equation to Helmholtz resonator, and the boundary element method was chosen to be a numerical tool. The numerical result shows a good agreement with theory, which validates the reliability of computer program and numerical method in present method. Therefore, the silence effect of the specific frequency can be estimated precisely by means of considering design parameters decided by the dimension of the resonator. In this paper, the silence effect on the overall system is investigated when the Helmholtz resonator is installed in the air-intake hose of a motorcycle air-filter or carburetor’s connecting piper as an auxiliary silence element where the porous sound-absorbing material has also take into account. The result shows that the lower part of transmission loss have improved as the resonator installs on an air-filter. On the other hand, this research also verifies that the range of silenced frequency widens and promotes the silence effect in system when the porous sound-absorbing material applies in the resonator.
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Cheng-MingShen and 沈徵明. "Thermal Analysis of Motorcycle Headlight." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/95920450527652385666.
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碩士國立成功大學
工程科學系碩士在職專班
102
SUMMARY This study focuses on motorcycle headlights for which high power LED bulb fin design within the limited space is conducted and improved to lower temperature. LED bulbs are from those available in the market. Experiments are carried out using halogen bulbs as the control group for comparison. Moreover, simulations are adopted for optimal thermal design. After the design and implementation of a vertical fin, the heat source temperature can effectively be reduced by about 20 ℃, improving by 16.9%.
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Yan, Lie. "Algorithms for Computing Motorcycle Graphs." Thesis, 2012. http://hdl.handle.net/10754/264693.
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Jung, Sheng-yu, and 鐘盛裕. "A study of motorcycle driving license and education system with anaysis of motorcycle accident characteristics." Thesis, 2011. http://ndltd.ncl.edu.tw/handle/23558731403622282014.
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碩士逢甲大學
運輸科技與管理學系
99
During to the advantages of convenience, maneuverability, and easy-parking, motorcycles had been became the favorite means of transportation. At Feb.2009,there are up to 14 millions and 310 thousands of motorcycles in taiwna. Riding education token to lows down traffic accidences is the main policy of government due to bad accidences happened with unstable control and lack of protect equipment but the helmet. The study is to find out the relationship between riders behavior and riders training from the A1 and A2 type data of accidences reported by the road accidence analysis report of 2005 in promoting safe riding by means of improving motorcycle license system with advanced traffic laws, grarded ride, and riding moral classes and referring to the riding license system within other countries to make promotions. Investigations had been made with Chi-square test and logistic regression to analysis the truths. Results had been found that increasing the questions of test and adding riding moral questions could improve safe senses of riders. Secondly, riders take riding training classes should not test unless completing all lessons. Thirdly, allow teenagers older then sixteen years old to have riding licenses and forced them to join training classes could be identified with most people inf decreasing traffic crimes of teenagers. Based on the identified by most people, and should be comsidered to revise government traffic policy.
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Haslett, David. "Riding at the margins : international media and the construction of a generic outlaw biker identity in the South Island of New Zealand, circa 1950-1975 : a thesis submitted in partial fulfilment of the requirements for the Degree of Master of Arts in Cultural Anthropology /." 2007. http://library.canterbury.ac.nz/etd/adt-NZCU20070511.121711.
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Chia-Ying, Kuo, and 郭家英. "The Effect of the Taiwan Motorcycle Helmet Use Law on Motorcycle Crash Fatalities and Head Injury." Thesis, 1998. http://ndltd.ncl.edu.tw/handle/26312299658998346835.
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碩士台北醫學院
公共衛生學研究所
86
In Taiwan, motorcycles are the most common means of transportation and account for 65% of all motor vehicles. Most serious or fatal motorcycle-related injur ies involve the head, so it is with great excitement that we inform youthat a motorcycle helmet use law was passed and enacted in the whole nation on June 1 , 1997. In order to evaluate the effect of the helmet law, we comparedthe hea d injury situtations in the same months before and after implementation of the helmet law. From June 1, 1996 to January 31, 1998 we collected 9,860 motorcy cle-related head injury cases from 7 major hospitals in Taiwan. Dataanalysis showed that after implementation of the law (June 1, 1996 to January31, 1997), the incidence of motorcycle-related head injury decreased by 17.4%when compar ed to the incidence before the law(June 1, 1997 to January 31,1998).Decreases in length of hospital stay and severity and better outcome were alsoseen. Aft er the helmet law, the incidence of conscious disturbance decreases by 15%, th e incidence of skull fracture and intracranial hematoma decreased by10-20% (p< 0.0001). After adjusting for sex and age, we found out that unhelmeted motorc yclists were 17.08 times more likely to die from motorcycle-related head injur ied and 7.08 times more likely to suffer from severe injuriesthan helmeted mot orcyclists. In addition, full helmets were found to be saferthan half-shell h elmets. Analysis of data provided by the National Healtht Insurance Bureau sh owed that after implementation of the helmet law, the costsof motorcycle-relat ed injury hospitalizations decreased by an average of US$ 3.93 million per mon th, and the number of fatalities in 1997 decreased by561 when compare to 1996. From these figures, it is evident that the helmet law effectively decreased the incidence and severity of motorcycle-related head injury and reduced relat ed medical costs.
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Van, Nguyen Duy Huy, and 阮維輝文. "A study on the marketing strategy of motorcycle manufacturers – Taking Vietnam’s motorcycle industry as an example." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/8mbe3h.
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碩士國立臺北科技大學
經營管理系碩士班
105
With the development of world economy, the motorcycle industry has also developed especially in Asia. Because of the relation of climate, geographical environment and national income, Asia becomes the development center of motorcycle industry. Viet Nam has been one of the fast-growing developing countries in South-East Asia in recent years. Vietnams youth accounted for a large proportion of the total population, low wage standards, lack of industrial development and Vietnamese governments strong support for foreign investment have become the main reasons to attract foreign enterprises to invest and establish their factories in Vietnam. According to statistics, the total number of new registered and increased foreign direct investment in Viet Nam by October 2016 amounted to $17.6 billion, which amounted to 91.3% in the same period last year. According to the Vietnam national statistical report, Taiwans FDI to Vietnam in June 2016 amounted to $31.7 billion, with processing, manufacturing accounting for 90% of total investment and fourth in 116 countries investing in Vietnam. This paper will observe these phenomena as the research background and motivation, in order to study the marketing strategy of the motorcycle manufacturers in Vietnam for the purpose of research. Therefore, this study mainly discusses the marketing strategy, brand strategy, competitive strategy, marketing mix strategy and marketing performance of motorcycle manufacturers, taking Vietnam’s motorcycle industry as an example.
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CHI, YAN-CHIH, and 紀彥池. "Intelligent Call System of Motorcycle Accident." Thesis, 2016. http://ndltd.ncl.edu.tw/handle/92703951623499740950.
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碩士明新科技大學
電機工程系碩士班
104
In this research, the use of open Arduino chip as the control platform, combined with communications transmission systems, sensors and other components external to smartphone Andrews (Android) OS-based architecture, writing apps (App) to perform control command, Bluetooth devices and applications on your phone Arduino chip for control commands transmission. In this research, three-axis sensor and gravity sensor and used to detect a traveling condition of the locomotive, and then write analysis algorithms to calculate the measured values from three-axis sensor and gravity sensor. Bluetooth transmission technology is used to measure sensor data and back to the phone App which determines the results the driving situation based on the measured data from locomotive triaxial sensor and gravity sensor. When the motorcycle accident appears, the cell phone will automatically send a distress message and the locomotive driver can immediately get relief.
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"A stochastic approach to motorcycle dynamics." Thesis, 2009. http://hdl.handle.net/1911/61852.
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A study on the applicability of the Monte Carlo method in the analysis of the dynamical behavior of motorcycles subject to road excitation is presented. To this end, a time-domain numerical simulation of the response of a motorcycle modeled as a linear four-degree-of-freedom (4-DOF) system, and traveling at constant speed is carried out. To validate the accuracy of the solutions obtained, the linear 4-DOF model is also analyzed using the frequency domain approach. Although the Monte Carlo simulation can be computationally costly, it provides an excellent scheme of analyzing, as well, non-linear systems, in which case the frequency domain approach cannot be applied. In this context the applicability of auto-regressive (AR) and autoregressive-moving-average (ARMA) filters for efficient implementation of the Monte Carlo simulation is pointed out. Furthermore, a practical engineering approach is presented for improved road roughness power spectral density (PSD) representation, and statistical parameters of the excitation signals synthesized.
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Robledo, Ricardo Luis. "Nonlinear Stochastic Analysis of Motorcycle Dynamics." Thesis, 2013. http://hdl.handle.net/1911/72032.
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Off-road and racing motorcycles require a particular setup of the suspension to improve the comfort and the safety of the rider. Further, due to ground unevenness, off-road motorcycle suspensions usually experience extreme and erratic excursions in performing their function. In this regard, the adoption of nonlinear devices, such as progressive springs and hydro pneumatic shock absorbers, can help limiting both the acceleration experienced by the sprung mass and the excursions of the suspensions. For dynamic analysis purposes, this option involves the solution of the nonlinear differential equations that govern the motion of the motorcycle, which is excited by the stochastic road ground profile. In this study a 4 degrees-of-freedom (4-DOF) nonlinear motorcycle model is considered. The model involves suspension elements with asymmetric behaviour. Further, it is assumed that the motorcycle is exposed to loading of a stochastic nature as it moves with a specified speed over a road profile defined by a particular power spectrum. It is shown that a meaningful analysis of the motorcycle response can be conducted by using the technique of statistical linearization. The validity of the proposed approach is established by comparison with results from pertinent Monte Carlo studies. In this context the applicability of auto-regressive (AR) filters for efficient implementation of the Monte Carlo simulation is pointed out. The advantages of these methods for the synthesis of excitation signals from a given power spectrum, are shown by comparison with other methods. It is shown that the statistical linearization method allows the analysis of multi-degree-of-freedom (M-DOF) systems that present strong nonlinearities, exceeding other nonlinear analysis methods in both accuracy and applicability. It is expected that the proposed approaches, can be used for a variety of parameter/ride quality studies and as preliminary design tool by the motorcycle industry.
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Chang, Bang-Lee, and 張邦立. "Motorcycle Burning Behavior in Free Space." Thesis, 2005. http://ndltd.ncl.edu.tw/handle/25401406965450811003.
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博士國立臺灣科技大學
營建工程系
93
The motorcycle is the most popular vehicle in Taiwan, which had been parked in quantity around buildings. Those are particular fire style in Taiwan, the motorcycle fire caused by inappropriate use of fire or deliberate arson and it would expanding become to building fire. In order to learn the motorcycle fire behavior so as to reduce its damage, this study used 10MW Cone Calorimeter to survey the heat release rate of real motorcycle burning in free space. Also related equipments surveyed the flame height and temperature. Mean times, this study used a rectangular combustion contrivance, which dimensions were 1/4 scale of the real motorcycle, to model motorcycle burning behaviors. No matter whether is one, two or three motorcycles burning in free space, the result of experiments showed the relationship between heat release rate and time on fire-growing period, the fire model is t2, the average of the fire-growing coefficient is 0.00019MW/sec2. When the fire became high-peak period, the maximum heat release rate is 1.16MW, 2.51MW and 5.44MW for one, two and three motorcycles burning in order separately. The fire model is e-t while the fire got into decreasing period. The flame height or the temperature on flame center axis is positive related to the heat release rate in burning real motorcycle experiments. The horizontal flame temperature and the flame area are related to the temperature on flame center axis. When the horizontal distance is increasing, the horizontal flame temperature is decreasing speedily. But the flame area increases speedily the horizontal flame temperature decreases. The formulas came from analyzing of experiment results, could characterize and quantify the motorcycle burnings behavior, such as heat release rate, flame height, temperature on flame center axis, horizontal flame temperature and flame area.
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Szu-Wei, Cheng, and 程斯偉. "Development of High Efficiency Electric Motorcycle." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/27186891431318110181.
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碩士國立勤益科技大學
電機工程系
100
The fuel oil motorcycles are the first pollution source causing deterioration of air quality in metropolitan area. This study developed a high efficiency full battery electric motorcycle to solve the noise and air pollution of gasoline motorcycles in metropolitan area. This electric motorcycle is a metropolitan vehicle aiming at high efficiency and long endurance, so it is designed in lightweight structure. The overall structure contains motor power, battery management, and motorcycle energy management subsystems. The dynamic system uses hub motor to drive the vehicle load directly, instead of reducing mechanism in order to increase efficiency and reduce loss. The battery management system has accurate measuring circuit to master the battery characteristics and to estimate the residual electric quantity. The entire motorcycle energy management system uses the self-made vehicle carried data acquisition card to read the data of the entire motorcycle, displaying the vehicle's mileage, speed per hour, residual electric quantity and light signals to warn the rider. Finally, this study completed a high efficiency and long endurance electric motorcycle, it is observed after extensive road test that the maximum speed of this electric motorcycle is about 40 km per hour, and the climbing slope is about 20°. The maximum endurance is 50 km after it is installed with rated 48V/25AH lithium iron phosphate battery.
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Cheng, Jan-Ming, and 鄭詹明. "Study on the Motorcycle Active Suspension." Thesis, 1998. http://ndltd.ncl.edu.tw/handle/07015571958205010895.
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碩士國立臺灣大學
機械工程學系
86
The focal point of industry researches for a motorcycle have moved to it's controllability, comfortability and stability, and also in considering reducin gweight and increasing speed to improve performance. This thesis will adapt su chconcept of active suspension system and apply it on the motorcycle. Comforta b-ility 、 controllability and stability of motorcycle are focus to be improve d. This thesis further used LQ control to improve the motorcycle stability fro mperturbution.
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Chen, I. Shang, and 陳義昇. "Polycyclic Aromatic Hrdrocarbons in Motorcycle Exhaust." Thesis, 1996. http://ndltd.ncl.edu.tw/handle/94260490416296942154.
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Tsai, Kuo Chang, and 蔡國昌. "DESIGN OF MOTORCYCLE REAR SUSPENSION MECHANISMS." Thesis, 1994. http://ndltd.ncl.edu.tw/handle/24573522830768245547.
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