Дисертації з теми "Lightweight vehicle"
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Davis, Mark E. (Mark Edward). "Design of a lightweight, multipurpose underwater vehicle." Thesis, Massachusetts Institute of Technology, 1993. http://hdl.handle.net/1721.1/12646.
Повний текст джерелаConstantin, Hannah. "Carbon fibre reinforced aluminium for lightweight vehicle structures." Thesis, University of Nottingham, 2016. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.718465.
Повний текст джерелаWorley, Marilyn Elizabeth. "Experimental Study on the Mobility of Lightweight Vehicles on Sand." Thesis, Virginia Tech, 2007. http://hdl.handle.net/10919/34005.
Повний текст джерелаThe first segment is a review of military criteria for the development of lightweight unmanned ground vehicles, followed by a review a review of current methodologies for evaluating the terramechanic (vehicle-ground interaction) mobility measures of heavyweight wheeled and tracked vehicles, and ending with a review of the defining properties of deformable terrain with specific emphasis on sand. These present a basis for understanding what currently defines mobility and how mobility is quantified for traditional heavyweight wheeled and tracked vehicles, as well as an understanding of the environment of operation (sandy terrain) for the lightweight vehicles in this study.
The second segment involves the identification of key properties associated with the mobility and operation of lightweight vehicles on sand as related to given mission criteria, so as to form a quantitative assessment system to compare lightweight vehicles of varying locomotion platforms. A table based on the House of Quality shows the relationships—high, low, or adverse—between mission profile requirements and general performance measures and geometries of vehicles under consideration for use. This table, when combined with known values for vehicle metrics, provides information for an index formula used to quantitatively compare the mobility of a user-chosen set of vehicles, regardless of their methods of locomotion. This table identifies several important or fundamental terramechanics properties that necessitate model development for robots with novel locomotion platforms and testing for lightweight wheeled and tracked vehicles so as to consider the adaptation of counterpart heavyweight terramechanics models for use.
The third segment is a study of robots utilizing novel forms of locomotion, emphasizing the kinematics of locomotion (gait and foot placement) and proposed starting points for the development of terramechanics models so as to compare their mobility and performance with more traditional wheeled and tracked vehicles. In this study several new autonomous vehicles—bipedal, self-excited dynamic tripedal, active spoke-wheel—that are currently under development are explored.
The final segment involves experimentation of several lightweight vehicles and robots on sand. A preliminary experimentation was performed evaluating a lightweight autonomous tracked vehicle for its performance and operation on sand. A bipedal robot was then tested to study the foot-ground interaction with and sinkage into a medium-grade sand, utilizing a one of the first-developed walking gaits. Finally, a comprehensive set of experiments was performed on a lightweight wheeled vehicle. While the terramechanics properties of wheeled and tracked vehicles, such as the contact patch pressure distribution, have been understood and models have been developed for heavy vehicles, the feasibility of extrapolating them to the analysis of light vehicles is still under analysis. A wheeled all-terrain vehicle was tested for effects of sand gradation, vehicle speed, and vehicle payload on measures of pressure and sinkage in the contact patch, and preliminary analysis is presented on the sinkage of the wheeled all-terrain vehicle.
These four segments—review of properties of sandy terrain and measures of and criteria for the mobility of lightweight vehicles operating on sandy terrain, the development of the comparison matrix and indexing function, modeling and development of novel forms of locomotion, and physical experimentation of lightweight tracked and wheeled vehicles as well as a bipedal robot—combine to give an overall picture of mobility that spans across different forms of locomotion.
Master of Science
Wallis, Lauren. "Lightweight lead acid batteries for hybrid electric vehicle applications." Thesis, University of Southampton, 2015. https://eprints.soton.ac.uk/378338/.
Повний текст джерелаDaniel, Ajay. "Suspension design for Uniti, a lightweight urban electric vehicle." Thesis, KTH, Fordonsdynamik, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-234900.
Повний текст джерелаKlimatförändringarna är verkliga och bilindustrin kan inte längre förneka att elektrifiering av fordon är framtiden. Men vad händer om det finns en bättre lösning för att uppfylla pendlingskraven i en stadsmiljö än en form av bil som vi är så bekanta med? Något som ger fri rörlighet som en bil men är mer praktisk. Kanske en Uniti? Uniti har som målsättning att erbjuda en smart lösning för urban pendling, något som är hållbart, roligt och i takt med de framsteg som gjorts inom tekniken. Detta innebar att man startade från ett tomt papper och attackera det mycket grundläggande problemet; en två ton maskin som är avsedd att bära fyra till fem personer som används av endast en person för majoriteten av sin livslängd, vilket är mindre önskvärt i en stadsmiljö. Därför kom Uniti till livet; ett lätt elfordon i L7e-kategorin som är konstruerad för att vara den andra familjebilen. Att utforma ett sådant fordon utifrån fordonets dynamik är svårt eftersom användaren förändrar fordonets massa väsentligt. Föraren och passageraren i detta fordon står för nästan en fjärdedel av den totala vikten. Detta tillsammans med den höga ofjädrade massan pga hjulmotorer gör det mer utmanande. Examensarbetet syftar till att skapa en utgångspunkt att bygga vidare på för en robust hjulupphängningsdesign. Grunder i fordonsdynamik användes för att bygga upp matematiska modeller i MATLAB och simuleringar gjordes med ADAMS / Car för att studera och optimera designen. Arbetets omfattning var begränsat med tanke på att allt behövde byggas från början, men modellerna som utvecklats och de koncept som lagts fram ska förhoppningsvis vara en bra grund för att utveckla vidare.
Johnson, Christopher Patrick. "Comparative Analysis of Lightweight Robotic Wheeled and Tracked Vehicle." Thesis, Virginia Tech, 2012. http://hdl.handle.net/10919/76994.
Повний текст джерелаMaster of Science
Barbalata, Corina. "Modelling and control of lightweight underwater vehicle-manipulator systems." Thesis, Heriot-Watt University, 2017. http://hdl.handle.net/10399/3279.
Повний текст джерелаMagnusson, Tobias. "Conceptual sandwich-sandwich-steel joint design for lightweight rail vehicle." Thesis, KTH, Lättkonstruktioner, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-159283.
Повний текст джерелаMarino, Michael A. "Precession damping and axial velocity control of a lightweight reentry vehicle." Thesis, Massachusetts Institute of Technology, 1989. http://hdl.handle.net/1721.1/41239.
Повний текст джерелаPolakowski, Matthew Ryan. "An Improved Lightweight Micro Scale Vehicle Capable of Aerial and Terrestrial Locomotion." Case Western Reserve University School of Graduate Studies / OhioLINK, 2012. http://rave.ohiolink.edu/etdc/view?acc_num=case1334600182.
Повний текст джерелаEvans, Thomas H. "Design of composite sandwich panels for lightweight applications in heavy vehicle systems." Morgantown, W. Va. : [West Virginia University Libraries], 2006. https://eidr.wvu.edu/etd/documentdata.eTD?documentid=4745.
Повний текст джерелаTitle from document title page. Document formatted into pages; contains ix, 125 p. : ill. (some col.). Includes abstract. Includes bibliographical references (p. 124-125).
Bawden, Owen John. "Design of a lightweight, modular robotic vehicle for the sustainable intensification of broadacre agriculture." Thesis, Queensland University of Technology, 2015. https://eprints.qut.edu.au/84988/1/Owen_Bawden_Thesis.pdf.
Повний текст джерелаKresge, Jared T. "Telerobotic system design for a remotely operated lightweight park flyer micro aerial vehicle." Ohio : Ohio University, 2006. http://www.ohiolink.edu/etd/view.cgi?ohiou1165012195.
Повний текст джерелаKresge, Jared T. "Telerobotic System Design for a Remotely Operated Lightweight Park Flyer Mirco Aerial Vehicle." Ohio University / OhioLINK, 2006. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1165012195.
Повний текст джерелаLovatt, Carl Ryan. "The Development of a Lightweight Electric Vehicle Chassis and Investigation into the Suitability of TiAl for Automotive Applications." The University of Waikato, 2008. http://hdl.handle.net/10289/2524.
Повний текст джерелаRitter, Robin. "The 100 kW Sportscar : Experience-Oriented Performance through Reduction in Times of Excess." Thesis, Umeå universitet, Designhögskolan vid Umeå universitet, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-136849.
Повний текст джерелаLind, Nordgren Eleonora. "A study of tailoring acoustic porous material properties when designing lightweight multilayered vehicle panels." Doctoral thesis, KTH, MWL Marcus Wallenberg Laboratoriet, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-100701.
Повний текст джерелаQC 20120815
Nordgren, Eleonora. "A study of tailoring acoustic porous material properties when designing lightweight multilayered vehicle panels." Phd thesis, Conservatoire national des arts et metiers - CNAM, 2012. http://tel.archives-ouvertes.fr/tel-00780756.
Повний текст джерелаJain, Anil. "An analysis of automotive body assembly technologies and their implications in lightweight vehicle development." Thesis, Massachusetts Institute of Technology, 1997. http://hdl.handle.net/1721.1/10228.
Повний текст джерелаde, Fluiter Travis. "Design of lightweigh electric vehicles." The University of Waikato, 2008. http://hdl.handle.net/10289/2438.
Повний текст джерелаChrist, Florian. "Adaption and evaluation of transversal leaf spring suspension design for a lightweight vehicle using Adams/Car." Thesis, KTH, Fordonsdynamik, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-180035.
Повний текст джерелаWennberg, David. "Multi-Functional Composite Design Concepts for Rail Vehicle Car Bodies." Doctoral thesis, KTH, Järnvägsgruppen, JVG, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-122391.
Повний текст джерелаQC 20130521
Niu, Jie. "Study on lattice structures using additive manufacturing and its application on a new ultra-lightweight vehicle suspension system." Thesis, University of Nottingham, 2017. http://eprints.nottingham.ac.uk/46690/.
Повний текст джерелаWennberg, David. "Light-weighting Methodology in Rail Vehicle Design through Introduction of Load Carrying Sandwich Panels." Licentiate thesis, KTH, Spårfordon, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-33646.
Повний текст джерелаQC 20110516
Multifunctional body panels
Sarip, S. Bin. "Lightweight friction brakes for a road vehicle with regenerative braking : design analysis and experimental investigation of the potential for mass reduction of friction brakes on a passenger car with regenerative braking." Thesis, University of Bradford, 2011. http://hdl.handle.net/10454/5486.
Повний текст джерелаHasenpusch, Jan, Andreas Hildebrand, and Thomas Vietor. "Erarbeitung eines Beziehungssystems zur Entwicklung eigenschaftsoptimierter Karosseriekonzepte in Mischbauweise [Präsentationsfolien]." Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2016. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-214001.
Повний текст джерелаPoulikidou, Sofia. "Assessing design strategies for improved life cycle environmental performance of vehicles." Doctoral thesis, KTH, Miljöstrategisk analys (fms), 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-192536.
Повний текст джерелаQC 20160920
Jonsson, Robert. "Life cycle energy optimization as a tool to compare and evaluate the optimal design in the automotive industry." Thesis, KTH, Lättkonstruktioner, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-285759.
Повний текст джерелаFiberförstärkta polymerplaster är kompositmaterial som erbjuder en lägre vikt än konventionella material som stål, samtidigt som de bibehåller den mekaniska prestandan. Detta gör dem intressanta för fordonsindustrin då nyttjandet av dem skulle möjliggöra tillverkare att sälja bränsleeffektivare bilar. Tillverkningen av sådana kompositer är dock mer energikrävande än den för stål och deras återvinningsmöjligheter är begränsade. Detta skapar för fordonsformgivaren ett incitament att beakta produkten i ett makroperspektiv som sträcker sig från utvinningen av naturresurserna för att skapa materialet, till slutskedet av produktens avsedda användning. Genom att bestämma hur den ackumulerade energin är fördelad i ett sådant makroperspektiv kan den total livscykelenergin beräknas. Eftersom livscykelenergin är kopplad till komponentens formgivning, kan ett optimeringsproblem med livscykelenergin som målfunktion att minimeras ställas upp. Komponentens formgivning kan uttryckas som optimeringsproblemets designvariabler. Den design som ger den lägsta livscykelenergin blir därmed den optimala formgivningen. Denna metod kallas livscykelenergioptimering (LCEO). Målet med detta examensarbete är att tillämpa denna metod på en lastbärande bilkomponent tillhandahållen av Volvo Cars och genomföra en jämförelseanalys mellan olika material samt återvinningsstrategier. Materialen som undersöks är kolfiberförstärkt härdplastkompist (CFRP), sheet moulding compound med glasfiber (GF-SMC) och konventionellt stål. Den Pythonimplementerade modellen består av fem livscykelfaser där varje fas uttrycks om en funktion med komponentgeomterin samt materialegenskaperna som indata och ger energiåtgången för fasen som utdata. Genom att summera energierna erhålls livscykelenergin och genom att presentera resultaten i ett stapeldiagram kan livscykelenergidistributionen visualiseras. Resultaten visar att det minst energikrävande alternativet är att tillverka komponenten i GF-SMC och återvinna produkten genom mekanisk bearbetning. Om hänsyn tas till fiberslitage blir den optimala lösningen att tillverka komponenten i CFRP och återvinna den genom solvolys. Detta arbete visar att LCEO- metoden, i ett tidigt skede, kan användas som ett verktyg av formgivare för att inkludera hur väl en produkt kan återvinnas. Framtida utmaningar består av att utveckla återvinningen av fiberförstärkta härdplaster industriellt, så att fiberslitaget minimeras.
Christensen, J. "Topology optimisation of structures exposed to large (non-linear) deformations." Thesis, Coventry University, 2015. http://curve.coventry.ac.uk/open/items/7c0729ce-e19c-414c-9542-c39527d54752/1.
Повний текст джерелаBerglund, Tobias. "Evaluation of Fuel Saving for an Airline." Thesis, Mälardalen University, Department of Mathematics and Physics, 2008. http://urn.kb.se/resolve?urn=urn:nbn:se:mdh:diva-586.
Повний текст джерелаA study of which methods and measures that can be used to reduce fuel consumption and harmful discharges in an airline.
The study begins with an investigation containing calculations of the differences between estimated fuel consumption calculated by a computer program called Skytrack and actual fuel consumption. Results from this study allows synchronization between actual consumption with calculated consumption. In addition to this methods and configurations to reduce weight and thus weight onboard aircrafts e.g. carpet exchange, lightweight trolleys and water reduction has been created and analysed.
To bring the thesis to an end, the author has investigated other methods and configurations which TUIfly Nordic is implementing for fuel conservation.
The thesis results in several conceivable areas for fuel conservation with calculated savings of 830 000 EUR which for the moment is implemented in TUIFly Nordic.
Klemt, Christian. "Verfahrensentwicklung zur Einbringung endlosfaserverstärkter Thermoplaste in metallische Strukturen mittels Patchen." Doctoral thesis, Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2017. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-218647.
Повний текст джерелаKHAGHANI, ALI. "MANUFACTURING OF MATERIAL BASED HYDROGEN FUEL FOR LIGHTWEIGHT VEHICLES." Thesis, The University of Arizona, 2016. http://hdl.handle.net/10150/613155.
Повний текст джерелаPearson, Matthew. "Development of lightweight structural health monitoring systems for aerospace applications." Thesis, Cardiff University, 2013. http://orca.cf.ac.uk/47104/.
Повний текст джерелаYao, Jerry Wei-Hua. "IDK : an Interaction Development Kit to design interactions for lightweight autonomous vehicles." Thesis, Massachusetts Institute of Technology, 2019. https://hdl.handle.net/1721.1/127725.
Повний текст джерелаCataloged from PDF of thesis.
Includes bibliographical references (pages 78-80).
Various studies have demonstrated that privately owned cars will become significantly less prevalent in the city in the next 10 to 15 years. Other efficient alternatives for mobility platforms within the city are in demand around the world. One example is the emergence of the PEV (Persuasive Electric Vehicle), an agile autonomous bike-sharing platform (M Lin, 2015). Based on this trend, it is reasonable to anticipate that increasingly more mobility systems of different forms will emerge in urban areas in the future. These new mobility systems might not necessarily be similar to cars; they may instead be a new class of social robot that could blend into the city more seamlessly. Moreover, when there is no longer a driver within each vehicle, designing human-machine interface (HMI) that is simple for users to process will be more important than ever.
For example, if a pedestrian encounters a lightweight autonomous vehicle for which it is apparent that no one is in the vehicle, how can the pedestrian understand the intention of the vehicle? And how can we, as designers, make this more intuitive and seamless? This thesis presents IDK, which is an Interaction Development Kit equipped with essential tools to help facilitate the design and prototyping process. IDK could be physically installed in PEVs, thereby enabling designers and developers to prototype human-machine interactions in a rapid and intuitive manner. This thesis also identifies multiple situations that a lightweight autonomous vehicle may encounter while navigating through streets and proposes a range of interactions that can tackle these problems. All prototypes from this thesis are based on the latest version of the PEV as an interactive platform.
The proposed interactions are evaluated through outdoor testing as well as indoor exhibitions to determine how people respond to these new norms of communication. My hope is that the results of this thesis will provide useful insights for designers and developers who seek to develop interactions that allow humans to seamlessly interact with lightweight autonomous vehicles.
by Jerry Wei-Hua Yao.
S.M.
S.M. Massachusetts Institute of Technology, School of Architecture and Planning, Program in Media Arts and Sciences
Huang, Xiaoyu. "Real-Time Parameter Estimations and Control System Designs for Lightweight Electric Ground Vehicles." The Ohio State University, 2014. http://rave.ohiolink.edu/etdc/view?acc_num=osu1403261078.
Повний текст джерелаRohlfing, Jens. "Decentralised velocity feedback control for thin homogeneous and lightweight sandwich panels." Thesis, University of Southampton, 2009. https://eprints.soton.ac.uk/69861/.
Повний текст джерелаSchennings, Jacob. "Deep Convolutional Neural Networks for Real-Time Single Frame Monocular Depth Estimation." Thesis, Uppsala universitet, Avdelningen för systemteknik, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-336923.
Повний текст джерелаValencia, Vargas Erick Rodrigo, and Sánchez Holman Aliga. "Plan de negocio para la creación de una empresa de servicio de lavado automatizado de vehiculos livianos en Lima." Master's thesis, Universidad Peruana de Ciencias Aplicadas (UPC), 2015. http://hdl.handle.net/10757/656678.
Повний текст джерелаThe following thesis is presented based on the conceptualization, study, analysis and conclusions about the need and business opportunity to implement a company dedicated to washing minor vehicles; applying technology with very little to almost no presence in the local market to carry it out, achieving quite optimistic economic results that in themselves ensure the viability of the proposed business. According to market analysis, the same business strategy and an established business plan; The starting point of the project is to meet the need of clients who attend similar businesses where the process is manual to rustic in many cases where it is observed that the tangible time / price factor is a marked deficiency in many of them. A production projection is also presented based on a number of vehicles per day to be served that generate a profitability associated with the need for capital amortization, operating expenses, personnel, even perhaps an expansion could be estimated if it were the case in the future of Increase in the number of vehicles in the country, which currently has good expectations. Finally, the conclusions detailing the result of analyzing the different variables that can affect the development of the business, the need for an adequate marketing and market plan, the importance of the place of operations, the main differentiated characteristic of the business ( automated vehicle washing) and what it represents as a vision in a public in need of this type of services.
Tesis
Liang, Hong-Yi, and 梁弘一. "Multi-class Vehicle Type Detection and Classification based on Lightweight Convolutional Neural Network." Thesis, 2018. http://ndltd.ncl.edu.tw/handle/5yzvaw.
Повний текст джерела國立臺北科技大學
資訊工程系
106
According to the statisitcs from Ministry of Transportation and Communications, there are currently about 7 million vehicles and more than 14 million motorbikes in Taiwan. The numbers of deaths per years in traffic accidents is about 2,000 and about 200,000 are injured. 77% of accidents are caused by driver’s mistakes, so vehicle identification is very important in ADAS, which can accurately identify the objects that may appear on the road, not only helps the driver understand the traffic conditions, but also improves driving safety. This thesis mainly studies the on-road vehicle type and pedestrian identification at night, and proposed a high-efficiency multi-class vehicle and pedestrian detection system suitable for most nighttime situations, with a lightweight convolutional neural network combined with video stream and is able to run on the embedded system not only improves the convolution method that requires a large amount of computing resources, but also solves the problem of poor detection of the current vehicle type and pedestrian detection system at night, and hopes to achieve the purpose of developing smart driving in the future. This thesis proposed a lightweight deep learing approach, which is based on the Single Shot MultiBox Detector (SSD) framework and a lightweight convolutional neural network designed specifically to minimize model size while maintaining object detection performance. The detection time of the PC has also increased from the original 40 FPS to 150 FPS, and the resulting lightweight SSD possess a model size of 22.5 MB (the VGG16-SSD model size is 98.2 MB). The lightweight SSD can be designed for embedded system with the same accuracy, solved the problem that the VGG16-SSD model is too large and cannot be implemented on the embedded system.
Soo, Vi Kie. "Life Cycle Impact of Different Joining Decisions on Vehicle Recycling." Phd thesis, 2018. http://hdl.handle.net/1885/143902.
Повний текст джерелаLin, Chia-Hung, and 林嘉宏. "A Study of Evaluation Photography Flight Path of Lightweight Fixed-Wing Unmanned Aerial Vehicle." Thesis, 2016. http://ndltd.ncl.edu.tw/handle/42509531398582070188.
Повний текст джерела國立高雄大學
資訊管理學系碩士班
104
UAV (Unmanned aerial vehicle) has been rapidly developed in recent years, and lightweight UAV is progressed very well in aerial photography application. The lightweight fixed-wing UAV is the most popular type for aerial photography because of its advantages more than satellite imagery and manned aircraft. The main purpose of aerial photography is to get the geographic information such as topographic map, DTM (digital terrain model), and DOM (digital orthophoto map). The quality of these maps is related to location accuracy, altitude accuracy, attitude, and flight speed of the UAV. These factors are affected by environmental conditions such as winds. In addition, the flying time and the number of flight tasks restrictions, and low light conditions will also affect the quality of aerial imagery. This study introduces six indicators to measure the quality of lightweight fixed-wing UAV’s flight path in different conditions and restrictions. The indicators are location accuracy, altitude accuracy, attitude, flight speed, total power consumption, and flight duration. This study uses the experimental method to evaluate the quality of lightweight fixed-wing UAV’s photography flight path by different constraints and wind directions. The experiment is designed as four flight path modes under the condition of the same number of waypoints, the same planned path, and the same path distance but different wind directions. The researcher uses a 1400mm wingspan UAV to perform the flight experiment by four modes in a flight task. After the flight task completed, the researcher analyzes the flight logs to estimate the wind direction and calculate six measurements of four modes, and then the researcher discusses and evaluates the relation between flight conditions and six indicators. Finally, according to the evaluation, some advices on flight path selection will be suggested in different flight conditions and restrictions.
Weng, Chen-Wei, and 翁辰瑋. "A Study on Suspension System Design and Lightweight Analysis of Steering Knuckle for an Electric Vehicle." Thesis, 2016. http://ndltd.ncl.edu.tw/handle/45063168064598215088.
Повний текст джерела國立屏東科技大學
車輛工程系所
104
In this thesis, the suspension system design analysis and the lightweight design analysis process of knuckle structure for a five-seat electric vehicle is proposed. The lightweight design analysis processes consist of suspension static loading analysis, kinematic analysis, force analysis, topology optimization analysis and finite element model analysis. In this study, the ABAQUS/TOSCA topology optimization software is used for the lightweight analysis of the knuckle structure. Three dimensional elastic-plastic finite element models are proposed for strength analyses of a knuckle structure. The effects of four different road pavement levels on the fatigue life of the knuckle structure are also investigated. The results show that the weight of the proposed knuckle structure is about 3.64 kg according to the lightweight design analysis process. Compared with the knuckle used for a ready-made five-passenger car, the weight reduction of the proposed knuckle is 6.2% with the same strength of knuckle strut arm and the same material. The simulation results indicate that the fatigue life of the knuckle structure is reduced as the road pavement level increases. The results also demonstrate that the fatigue lives of the proposed knuckle structure are 2.512×1011, 2.972×108, 5.598×103 and 2.432×101 cycles under the conditions of road level A, B, C and D, respectively.
Bo-NengChuang and 莊博能. "Power Dispatch and Cost Analysis of a Hybrid Fuel Cell Vehicle with a Lightweight Methanol Reformer." Thesis, 2018. http://ndltd.ncl.edu.tw/handle/f5dkyy.
Повний текст джерела國立成功大學
化學工程學系
106
In recent years, emerging green energy technologies such as fuel cells are considered clean, environment friendly and highly efficient. At present, the development of fuel cell vehicles has received extensive attention worldwide. Due to limited hydrogen refueling stations, research has been directed towards addressing alternative ways to develop a hydrogen production system that can be integrated in a hybrid power system. This study aims to introduce a hydrogen processor that uses methanol to power the fuel cells of the car. One of the disadvantage is that the hydrogen processor will increase the weight and energy consumption. Therefore, this study finds the optimum configuration by analyzing the cost, hybrid ratio and fuel economy using the ADVISOR simulation software. The simulation method involves substituting the energy consumption and weight of the methanol to hydrogen processor into the software. Under fixed mileage, the results showed that the hybrid fuel cell vehicle is more expensive rather than the methanol to hydrogen processor in terms of capital or fuel cost and the higher the proportion of high-speed driving resulted to lower fuel cost. However, in terms of acceleration performance testing, the results showed that the hybrid fuel cell vehicle is better rather than the methanol to hydrogen processor. Moreover, the hybrid ratio of 0.6 demonstrates the lowest capital cost and highest fuel economy. Results shown above demonstrates the great potential of developing a hybrid fuel cell vehicle with a methanol to hydrogen processor.
Lovatt, Ryan. "The development of a lightweight electric vehicle chassis and investigation into the suitability of TiA1 for automative applications." 2008. http://adt.waikato.ac.nz/public/adt-uow20080222.153212/index.html.
Повний текст джерелаLan, I.-Wei, and 藍亦維. "Design Method for Improving Torque Density of Axial-Flux Permanent Magnet Motor in Personal Lightweight Electric Vehicle." Thesis, 2011. http://ndltd.ncl.edu.tw/handle/47354592628003782308.
Повний текст джерела國立臺灣大學
機械工程學研究所
99
Nowadays, there are many different vehicles in this world, bike, scooter, car, train, MRT system …etc. These kinds of vehicle almost cover user’s requirement. There is a new kind of vehicle called PLEV, personal lightweight electric vehicle, and it provides an easy means for the last-mile service. PLEV is foldable and portable EV. It has direct drive motor and lightweight structure. EV traction motors always reach torque command as power requirement. Higher torque command means more motor weight and volume, and it decrease battery performance in same vehicle space. It would be more consider in PLEV, because motor weight percent in vehicle is larger. The purpose of this research is to design a high torque density axial-flux motor which is lightweight and suitable for a PLEV. This research proposes a design method with software tools for improving torque density of axial-flux motor. The method is proposed that magnetic design to increase torque density and structure design to decrease motor structure weight. In this research, FEM software JMAG and ABAQUS are used to analysis magnetic and structure design. This research is also proposed motor design program to shorten design period. There are two points in this research. One is to finish motor parametric operation program to decrease magnet design period. That can also reduce design variables of sensitive analysis. Another is use ESO (evolution structure optimum) to analysis motor structure. After above, this research proposes PLEV motor, doing test and verify it to show research achievement.
De, Fluiter Travis. "Design of lightweight electric vehicles." 2008. http://adt.waikato.ac.nz/public/adt-uow20080314.095748/index.html.
Повний текст джерелаKlemt, Christian. "Verfahrensentwicklung zur Einbringung endlosfaserverstärkter Thermoplaste in metallische Strukturen mittels Patchen." Doctoral thesis, 2016. https://tud.qucosa.de/id/qucosa%3A30149.
Повний текст джерелаMing, Ying Hsieh, and 謝明穎. "Design and Analysis of Lightweight Chassis for Solar City Vehicles." Thesis, 2013. http://ndltd.ncl.edu.tw/handle/78593661242439021807.
Повний текст джерела國立高雄應用科技大學
模具系碩士在職專班
101
The purpose of this study is to explore the design and analysis of lightweight chassis for solar city vehicles. Based on the design of Apollo solar cars of KUAS, the carbon fiber composite materials, applied to the chassis of the sport car, is used for the lightweight chassis in the study. The method of the research is using computer-aided engineering design software Solid Works to draw the model of lightweight chassis and to calculate the displacement of the material by finite element analysis software ANSYS. There are four kinds of thickness for the carbon-fiber layer, and four kinds of thickness for composite honey-comb core to form the sandwich structure for the lightweight chassis. Under the eight kinds of different material pattern, the numerical simulation can carry out the static strain distribution. To estimate the weight of chassis by using the steel and the aluminum alloy material, It can be observed the lightweight benefit of the carbon fiber composite materials applied to the lightweight chassis model which is the steel: 306.97 kg , the aluminum: 175.98 kg, and the carbon fiber composite materials: 25.80 kg. The results shows it is first choice the carbon fiber composite materials for the lightweight chassis. In addition, to enhance the structure of lightweight chassis, the rib set on strategical location could have bigger benefit. It found that is only need three layers (0.6 mm in thickness) of carbon fiber composite materials laminated with core material, 10 mm honeycomb board to achieve the expected strength. It appears the weight of lightweight chassis structural optimization is only 17.96 kg. The most value of this research is an example to develop the lightweight chassis for solar city vehicles.
(10929852), Wei-Cheng Hsu. "Lightweight Cyberattack Intrusion Detection System for Unmanned Aerial Vehicles using Recurrent Neural Networks." Thesis, 2021.
Знайти повний текст джерелаCamboa, André Magalhães Sá. "Development of lightweight and cost-efficient exterior body panels for electric vehicles." Doctoral thesis, 2016. https://repositorio-aberto.up.pt/handle/10216/83542.
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