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Relevant bibliographies by topics / Wheels

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Academic literature on the topic 'Wheels'

Author: Grafiati

Published: 4 June 2021

Last updated: 30 July 2024

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Journal articles on the topic "Wheels"

1

Mohanraj, A. P., P. Parameshwaran, B. P. Sivasubramaniyan, P. Srinivasan, and V. Nijanthan. "The Importance of the Fourth wheel in a Four-wheeled Omni Directional Mobile Robot-An Experimental Analysis." Journal of Physics: Conference Series 2601, no. 1 (September 1, 2023): 012004. http://dx.doi.org/10.1088/1742-6596/2601/1/012004.

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Abstract A four-wheeled Omni Directional Robot may travel in any direction without turning its wheels. In this research work, four Omni-directional wheels have been placed at 90°. This four-wheeled, omnidirectional mobile robot appears to be a square design from the top view, with its wheel axes at 90 degrees. Power is given to the front wheel using a DC motor and that wheel alone will rotate. All other three wheels (Right, Left and Back) are kept in neutral positions. These wheels can move based on the front wheel’s rotation. No power given to these wheels. Three different practical analyses have been done. In this first experimental analysis, the back wheel is kept as an Omni direction wheel. In this Second experimental analysis, the back wheel is kept as a Roller wheel. In this Third experimental analysis, the back wheels are removed and the other three wheels are kept and analysis is done. The importance of the back wheel in the four-wheeled Omni Directional Robot is demonstrated in this research work.

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Zhao, Jianwei, Yuanshuang Liu, Yuanyuan Qu, Feng Bian, and Yu Ban. "Model and simulation of four-wheeled robot based on Mecanum wheel." International Journal of Modeling, Simulation, and Scientific Computing 08, no. 02 (October 24, 2016): 1750015. http://dx.doi.org/10.1142/s1793962317500155.

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Based on Mecanum wheels and “[Formula: see text]”-shaped planetary wheels, we combine these two kinds of wheels’ respective motion principle with their advantages to design a new type of four-wheeled robot: install the Mecanum wheels at the end of “[Formula: see text]”-shaped planetary wheel group. The wheel designed based on Mecanum wheels and “[Formula: see text]”-shaped planetary wheel can adapt to the complex terrain such as stairs, steps, and at the same time it can achieve the rotation of the whole body in a limited space. This paper studies the adaptability of the four-wheeled robot to the stairs, analyzing and calculating the parameters of the four-wheeled robot and the stairs.

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Yang, Baoan, and Ya Ping Ye. "Research on Approaches to Aluminum Alloy Automotive Wheels' Lightweight Design." Advanced Materials Research 774-776 (September 2013): 465–68. http://dx.doi.org/10.4028/www.scientific.net/amr.774-776.465.

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Wheels should meet strength requirements and achieve lightweight design. The analysis of structure characteristics of the aluminum alloy automotive wheels that are widely used was done. Based on the wheel radial fatigue test, the wheel's load was determined. The analysis of the wheel was done applying 3D modeling technology and FEA (finite element analysis) theory, and the results can be used as the theoretical basis of aluminum alloy automotive wheels' lightweight design.

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Gonçalves, Vítor, Araliya Mosleh, Cecília Vale, and Pedro Aires Montenegro. "Wheel Out-of-Roundness Detection Using an Envelope Spectrum Analysis." Sensors 23, no. 4 (February 14, 2023): 2138. http://dx.doi.org/10.3390/s23042138.

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This paper aims to detect railway vehicle wheel flats and polygonized wheels using an envelope spectrum analysis. First, a brief explanation of railway vehicle wheel problems is presented, focusing particularly on wheel flats and polygonal wheels. Then, three types of wheel flat profiles and three periodic out-of-roundness (OOR) harmonic order ranges for the polygonal wheels are evaluated in the simulations, along with analyses implemented using only healthy wheels for comparison. Moreover, the simulation implements track irregularity profiles modelled based on the US Federal Railroad Administration (FRA). From the numerical calculations, the dynamic responses of several strain gauges (SGs) and accelerometer sensors located on the rail between sleepers are evaluated. Regarding defective wheels, only the right wheel of the first wheelset is considered as a defective wheel, but the detection methodology works for various damaged wheels located in any position. The results from the application of the methodology show that the envelope spectrum analysis successfully distinguishes a healthy wheel from a defective one.

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Yang, Bao An, Xu Hui Li, Fei Yang, Zi Ru Niu, and Zhi Hong Wang. "The Structure Optimization of Aluminum Alloy Automotive Wheels." Advanced Materials Research 753-755 (August 2013): 1175–79. http://dx.doi.org/10.4028/www.scientific.net/amr.753-755.1175.

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The aluminum alloy automotive wheels are widely used and their quality safety is vital. So their structure design should be optimized. Based on the wheel bending fatigue test and the analysis of aluminum alloy automotive wheel's structure characteristics, the wheel's load was discussed and the analysis of the wheel was done by using Solidworks and ANSYS. The analysis result provides scientific basis for the optimization design of the aluminum alloy automotive wheels.

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Wu, Yue, Xuesong Jin, Wubin Cai, Jian Han, and Xinbiao Xiao. "Key Factors of the Initiation and Development of Polygonal Wear in the Wheels of a High-Speed Train." Applied Sciences 10, no. 17 (August 25, 2020): 5880. http://dx.doi.org/10.3390/app10175880.

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The polygonal wear of train wheels occurs commonly in rail transport and increases the wheel–rail interaction force dramatically and has a bad effect on the safety and comfort of the train. The mechanism of polygonal wear needs to be studied. The characteristics of test data measured from 47,000 sets of polygonal wheels of high-speed trains were analysed statistically. The analysis shows that, in the entire use life cycle of the wheels, the order (wavelength) and development speed of polygonal wear are different; they correspond to different wheel diameters because of wear and re-profiling. A prediction model, which considered the flexibility of the wheelset for the polygonal wear of the wheels of high-speed trains, was developed to explain this phenomenon. This theoretical model analyses the initiation, development, and characteristics of polygonal wear. The analysis includes the effect of the high-frequency flexible deformation of the wheelset, train operation speed, and wheel diameter variation. This study suggests that, if the wheel perimeter is nearly an integral multiple of the wavelength of severe periodic wear along the wheel circumference, the polygonal wear on the wheel can develop quickly. Furthermore, the wavelength of the periodic wear of the wheel relies on the operation speed of the train and wheelset resonant frequency. Therefore, the initiation and development of polygonal wear on wheels depends on the operation speed, wheel diameter, and the resonant frequencies of the wheelset. This conclusion can be applied to research concerning measures associated with the suppression of polygonal wear development.

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Antoshchenkov, Roman, Serhii Bogdanovich, Ivan Halych, and Halyna Cherevatenko. "Determination of dynamic and traction-energy indicators of all-wheel-drive traction-transport machine." Eastern-European Journal of Enterprise Technologies 1, no. 7 (121) (February 28, 2023): 40–47. http://dx.doi.org/10.15587/1729-4061.2023.270988.

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The results of a study of dynamic and traction-energy indicators of an all-wheel drive wheeled traction-transport machine are presented. A diagram of a dynamic transmission model for an all-wheel drive wheeled traction and transport machine and a system of equations for the transmission dynamics in the Cauchy form have been compiled. This made it possible to determine the dependences of the angular speeds of rotation of the transmission elements of the traction-transport machine, the dependences of the torques and the dependences of the contacting traction forces on the wheels on time. The method allows to determine the optimal transmission parameters, differential designs and gear ratios to improve the traction and coupling and fuel-economic performance of the machine. It has been established that the angular speeds of rotation of the front wheels of the traction-transport machine 1.29 rad/s, 1.27 rad/s are higher than the angular speeds of rotation of the rear wheels 1.24 rad/s, 1.25 rad/s, which leads to the appearance of a kinematic discrepancies and additional energy losses. The torques of the front drive wheels are 6972 Nm, the rear drive wheels are 4622 Nm. The contacting traction forces on the front wheels of the machine are 5478 N after the end of the acceleration of the machine, on the rear wheels – 3473 N. Experimental studies were carried out on the example of an all-wheel drive wheeled tractor with an articulated frame to validate the method for assessing the dynamics of the traction-transport transmission. The difference between the values of the angular speeds of rotation of the wheels and the tangential traction forces on the wheels, determined theoretically and obtained during experimental studies, is 2 %. The developed method for assessing the transmission dynamics of an all-wheel drive traction and transport machine should be considered valid. The method proposed in the paper can be used to assess the dynamics of wheeled machines

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Takahashi, Naoki, and Kenichiro Nonaka. "Model Predictive Leg Configuration Control for Leg/Wheel Mobile Robots that Adapts to Changes in Ground Level." Journal of Robotics and Mechatronics 35, no. 1 (February 20, 2023): 160–70. http://dx.doi.org/10.20965/jrm.2023.p0160.

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Leg/wheel mobile robots, which have articulated legs ending in a wheel, can walk on legs as well as drive on wheels by switching between those two motive mechanisms in response to the terrain. However, effective control of the redundant degrees of freedom of leg/wheel mobile robots is complex. In this study, we propose a model predictive controller for leg configuration control that achieves both driving along the ground surface and climbing over a step. The proposed method simultaneously optimizes the robot pose, wheel positions, and joint angles. To consider the kinematic configuration of the legs explicitly, we formulate constraints on the relative position between the body and wheels. The ground contact condition of the wheels is approximately expressed as a continuous function with respect to each wheel’s relative position to the ground. This formulation induces smooth lifting of the wheels when the ground level abruptly changes, as when climbing a step. To prevent overturning, we evaluate the load distribution between each grounded wheel and constrain the body position to form a support polygon consisting of the grounded wheels. We conducted numerical simulations to verify that the proposed method achieves both driving on wheels and climbing over a step.

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Barke, D. W., and W. K. Chiu. "A Review of the Effects of Out-Of-Round Wheels on Track and Vehicle Components." Proceedings of the Institution of Mechanical Engineers, Part F: Journal of Rail and Rapid Transit 219, no. 3 (May 1, 2005): 151–75. http://dx.doi.org/10.1243/095440905x8853.

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Out-of-round rollingstock wheels are caused by skidding or spalling of the wheel tread and by dynamic motion of wheels and wheelsets in service. Out-of-round wheels generate impact forces at the wheel-rail interface, which are transferred to train and to track components including rail and both bolted and welded rail joints, prestressed concrete sleepers, ballast, wheels, and bearings. To make a rational decision about removing out-of-round wheels from service, estimation of the damage caused by an individual wheel is required. Previous studies have used analytical and numerical models to illustrate the distribution of impact into track and rolling stock components. These models are compared here. The review details mathematical models and studies of the lives of the earlier-listed components, which would provide a means of determining the damage caused by impacting wheels. In addition, studies have found that impacting wheels increase fuel consumption and increase pass-by noise levels, which are also discussed here. Further study of the effect of impacting wheels on axle bearing lives, parent rail, and bridges would improve this decision-making tool. It is envisaged that these models would be combined to determine the total cost of operating rolling stock with impacting wheels. This could be offset against the cost of wheelset maintenance to determine when an impacting wheel should be reprofiled.

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Somov, Dmitrij, and Žilvinas Bazaras. "THE RESTORATION OF PHYSICAL AND MECHANICAL PROPERTIES OF WHEEL RIM METAL." TRANSPORT 26, no. 3 (October 5, 2011): 240–47. http://dx.doi.org/10.3846/16484142.2011.622132.

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Despite reduced resistance to wheel rim wear, after every grinding, only geometrical parameters of wheels are restored at maintenance depots. A tendency towards a decrease in the exploitation of wheel rim working edge induces the acquisition of new wheels, is related to a considerable increase in axle load and train speed as well as linked to the ineffective methods of repairing wheel rim working edge. A solution to the problem of restoring the surface of wheelset rolling, as a wider problem of rolling stock durability, is determined by the fact that the breakdown of the rolling wheelset and the loss of its efficiency shortens the service time of the wheelset. The cost of pointless and inefficient renovations of geometrical wheelset parameters increases and is of a very high rate. The problem of efficient renovations to rims and steel used for wheels within the maintenance of wheelsets becomes a burning issue today.

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Dissertations / Theses on the topic "Wheels"

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Gurney, Frederick. "Wheels within wheels : an examination of Witold Lutoslawski's Trois poèmes d'Henri Michaux /." Thesis, Connect to this title online; UW restricted, 1998. http://hdl.handle.net/1773/11262.

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Wood, Alice. "Of wings and wheels." Thesis, University of Edinburgh, 2007. http://hdl.handle.net/1842/2022.

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What are the biblical cherubim? In the Hebrew Bible, the physical appearance and cultic role of the cherubim are never explicitly elucidated. Largely, the authors assume their audience is familiar with the form and function of these heavenly beings. Yet the portrayal of the cherubim varies from text to text and, sometimes, we are given conflicting information. Previous studies of the cherubim have placed too great an emphasis on archaeological and etymological data. This thesis presents a new synthetic study which prioritises the evidence supplied by the biblical texts. Biblical exegesis, using literary and historical-critical methods, forms the large part of the investigation (chapter 2). The findings arising from the exegetical discussion provide the basis upon which comparison with etymological and archaeological data is made (chapters 3 and 4). It is argued that, with the exception of the book of Ezekiel, the biblical texts are quite consistent in their portrayal of the cherubim. Cherubim are intimately connected with the manifestation of Yahweh and have an apotropaic function in relation to sacred space. They are envisaged with one face and one set of wings. Ps 18:11 = 2 Sam 22:11 suggests that they are quadrupedal. The traditions in the final form of Ezekiel 1-11 mark a shift in the conception of the biblical cherubim. Physically, the cherubim are transmogrified and become enigmatic beasts with four faces and four wings. Their function also changes. Depicted elsewhere as menacing guardians, in Ezekiel they become agents of praise. The results suggest that traditions envisaging the cherubim as tutelary winged quadrupeds were supplanted by traditions that conceived of them as more enigmatic, obeisant beings. In the portrayal of the cherubim in Ezekiel and Chronicles, we can detect signs of a conceptual shift that prefigures the description of the cherubim in post-biblical texts, such as The Songs of the Sabbath Sacrifice and the Enochic texts.

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Baker, Brittany S. M. Massachusetts Institute of Technology. "Reconfigurable wheels : re-inventing the wheel for the next generation of planetary rovers." Thesis, Massachusetts Institute of Technology, 2012. http://hdl.handle.net/1721.1/71459.

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Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Aeronautics and Astronautics, 2012.
Cataloged from PDF version of thesis.
Includes bibliographical references (p. 84-85).
Experiences with Spirit and Opportunity, the twin Mars Exploration Rovers, showed that one of the major issues that needs to be addressed in order to expand the exploration capabilities of planetary rovers is that of wheel traction. The relationships governing how much traction a wheel can produce are highly dependent on both the shape of the wheel and terrain properties. These relationships are complex and not yet fully understood. The amount of power required to drive a wheel is also dependent on its shape and the terrain properties. Wheel sizes that tend to maximize traction also tend to require more power. In the past, it has always been a challenge to find the right balance between designing a rover wheel with high traction capabilities and low power requirements. More recently, researchers invented the idea of a reconfigurable wheel which would have the ability to change its shape to adapt to the type of terrain it was on. In challenging terrain environments, the wheel could configure to a size that would maximize traction. In less challenging terrain environments, the wheel could configure to a size that would minimize power. Theoretical simulation showed that the use of reconfigurable wheels could improve tractive performance and some initial prototyping and experimental testing corroborated those findings. The purpose of this project was to extend that prototyping and experimenting. Four reconfigurable wheels were designed, built, and integrated onto an actual rover platform. A control methodology whereby the wheels could autonomously reconfigure was also designed, implemented, and demonstrated. The rover was then tested in a simulated Martian environment to assess the effectiveness of the reconfigurable wheels. During the tests, the power consumption and the distance traveled by the rover were both measured and recorded. In all tests, the wheels were able to successfully reconfigure and the rover continued to advance forward; but as was expected, the reconfigurable wheel system consumed more power than a non-reconfigurable wheel system. In the end, the results showed that if maximizing vehicle traction was weighed more heavily than minimizing power consumption, the use of reconfigurable wheels yielded a net gain in performance.
by Brittany Baker.
S.M.

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Lawton, Natalie. "Planetary Rover Wheel and Lower Leg Structural Design to Reduce Rock Entanglements." Thesis, Luleå tekniska universitet, Institutionen för system- och rymdteknik, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-78565.

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This thesis looks at the SherpaTT planetary rover. The rover is a hybrid walking and driving rover that has been developed and built by DFKI and has already been deployed on several Mars analogue field studies. The SherpaTT rover wheels were found to become entangled in rocks during the last field deployment in Morocco. As human intervention would be impossible on Mars the aim is to reduce the possibility of rock entanglements by performing a mechanical redesign of the wheels. During this redesign care is taken to ensure the current traction, slip-resistance, weight and strength are not adversely affected. In addition, the durability of the wheels is investigated in terms of materials to review whether the current wheels are suitable for a mars deployment. An investigation into the grousers design results in a changed design that aims to both reduce rock entanglements and increase wheel performance by optimising the grouser height and number over several different wheel and terrain cases. Wheels are produced for four scenarios, a rigid wheel on hard ground, a rigid wheel on soft ground, a flexible wheel on hard ground and a flexible wheel on soft ground. A conceptual investigation into the wheel fork design is carried out to examine the effects of changing three properties of the wheel fork. The magnitude and location of the stress is compared for each. Materials are investigated resulting in the recommendation of several potential material choices which provide an increase in the overall strength and hardness. While SherpaTT is still in development the 6000 class of aluminium is recommended due to the relative ease with which it can be worked with. Once SherpaTT moves onto the final stages it is recommended that at least the grousers are made from the 7000 class of aluminium, which have higher levels of strength and hardness.

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Lock, Julia. "Cyclodextrins : molecular wheels for supramolecular chemistry /." Title page, table of contents and abstract only, 2004. http://web4.library.adelaide.edu.au/theses/09PH/09phl8131.pdf.

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Thesis (Ph.D.)--University of Adelaide, School of Chemistry and Physics, Discipline of Chemistry, 2005?
"July 2004" Includes copies of publications by the author as appendix. Includes bibliographical references.

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Moore, Jaclyn Kate. "Aerodynamics of High Performance Bicycle Wheels." Thesis, University of Canterbury. Mechanical Engineering, 2008. http://hdl.handle.net/10092/1800.

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This thesis presents the work undertaken to assess potential improvements in high performance bicycles. There are several wheel options available for elite riders to use in competition and this research has investigated the aerodynamic properties of different wheel type. The research has also developed CFD and FEA models of carbon fibre bicycle wheels to assist in the wheel improvements process. An accurate and repeatable experimental test rig was developed to measure the aerodynamic properties of bicycle wheels in the wind tunnel, namely translational drag, rotational drag and side force. Both disk wheels and spoked wheels were tested. It was found that disk wheels of different hub widths have different aerodynamic properties with the 53mm wide Zen disk wheel requiring the lowest total power of the wheels tested. There was little difference between the translational power requirements of the wheels but there was greater variation in the rotational power requirements. Compression spoked wheels of 3 and 5 spokes were found to require less power than wire spoked wheels. There was little difference between the total power requirements of the compression spoked wheels tested, with the differences at 50km/hr being less than the experimental uncertainty. The Zipp 808 wheel demonstrated considerably lower axial force than all other wheels at 10° yaw angle, confirming Zipp design intention to have optimum wheel performance between 0-20°. The Zen 3-spoke wheel showed the lowest axial drag and side force at yaw of the compression spoked wheels tested and had similar side force results to the Zipp 808. CFD models of the disk and 3-spoke wheel achieved good agreement with the experimental results in terms of translational drag. Rotational drag did not agree so well, most likely due to the turbulence model being designed for higher Reynolds number flows. A FE model of the disk wheel was validated with experimental testing. In order to simplify modelling, the FE model of the 3-spoke wheel did not include the hub, which led to a large discrepancy with experimental results for the particular loading scenario. The experimental rig and CFD models were used to develop aerodynamic improvements to the wheel and the FE models were used to identify the implication of geometric changes to the wheel structural integrity. These improvements are not reported in this thesis due to the results being commercially sensitive.

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Brash, Benjamin. "Distortions of Press Quenched Crown Wheels." Thesis, KTH, Materialvetenskap, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-170022.

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Scania has experienced difficulties with large variations of the slope of the back plane after press quenching of case hardened crown wheels of especially type R780 Steg supplied from ingot cast material. This leads to that a large number of crown wheels has to be remeasured and sorted according to back slope which is time consuming for operators. Also, after sorting of the crown wheels, hard machining has to be adjusted according to the different slopes of the back plane of the crown wheels. In some cases, it also leads to scrapping of the crown wheels.This master’s thesis was divided in two parts. The aim of the first part was to confirm that the crown wheel type and casting technique that exhibits the largest variations in slope of the back plane is the R780 Steg originating from ingot cast material. The crown wheel types that were compared were the R780 Steg, R780 Slät and R885 Slät. Crown wheels manufactured from ingot cast material and from continuous cast material were compared. Hence, 6 combinations were examined. The slope of the back plane was measured with the measuring probe FARO after press quenching. The slope of the crown wheels was found to depend on both casting technique and the geometry of the crown wheel. The results confirmed that the crown wheel type and supplier combination that by far yields the largest variations in slope of the back plane is the R780 Steg supplied by Steel Plant A who uses the ingot casting technique. For this combination the variation exceeds 0,1 mm. All other combinations of crown wheels and suppliers yield acceptable variations.The second part of this master’s thesis was composed of determining if segregations in the cast ingot are the cause of the variations in slope of the back plane of the crown wheel type R780 Steg. This was done by measuring if there is a correlation between the slope of the back plane of the crown wheel after press quenching, the chemical composition and the original position of the crown wheel in the ingot. As in the first part of the study, the distortion was measured by the measuring probe FARO. The samples were sent to Degerfors Laboratorium for chemical analysis. Analyses of C, S and N were made by using combustion analyses. For As, P, B and Al optic spectrometry (spark) was used. All other elements were analysed by x-ray fluorescence. Segregations were found to be present and in combination with the geometry of R780 Steg to be the cause of the large variations in slope of the crown wheels.The results of this thesis show that, for the crown wheel type R780 Steg, Scania should not use suppliers that employ the ingot casting technique. Instead, only suppliers using the continuous casting technique should be used. However, for the other crown wheel types ingot or continuously cast material can be used.

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Taghizadeh, Mohammad. "Robot with Three Independently Steerable Wheels." Thesis, California State University, Long Beach, 2018. http://pqdtopen.proquest.com/#viewpdf?dispub=10784154.

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Technology in robotics has improved significantly in recent years. While the majority of research has focused on improving existing methods, it is advantageous to challenge these established methodologies and develop new solutions. This new research centers on a novel method of robot movement design. The proposed model concentrates on a robot containing three steerable wheels, allowing the mobile robot to reach the desired orientation and coordinates with minimal movement. This goal is accomplished by simultaneously moving and rotating the robot while moving in a straight path, unlike the movement provided by standard wheeled vehicles. This method provides greater control of performance and more power of movement on various surfaces, compared to using Omni wheels, which contains the design with the greatest similarity to this proposed method. While this new method may result in added complexity due to the goal-based flexible constraints in speed, wheel rotation, and overall movement, this complication may be mitigated by using appropriate software and hardware.

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Hojnik, Tim. "Dynamically configurable centre of rotation wheels." Thesis, Queensland University of Technology, 2021. https://eprints.qut.edu.au/212361/1/Tim_Hojnik_Thesis.pdf.

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This thesis reinvents the wheel to develop a locomotion system that exhibits high efficiency and exceptional obstacle clearing ability, the Posable Hub. This is achieved by using a rigid rim with an actively movable centre hub, through the use of linear actuators. The centre hub can be adjusted in a number of ways, exhibiting functionality that ultimately increases the wheel’s traversability.

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VENTURINI, SIMONE. "Design methodologies for automotive steel wheels." Doctoral thesis, Politecnico di Torino, 2022. http://hdl.handle.net/11583/2971317.

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Books on the topic "Wheels"

1

Radlauer, Ed. Wheels, wheels, and more wheels. Lake Forest, Ill: Forest House, 1992.

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(Group), Nethergate Writers, ed. Wheels within wheels. Dundee: Nethergate Writers, 2012.

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Murphy, Dervla. Wheels within wheels: Autobiography. Oxford: ISIS Large Print, 1986.

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Fitzpatrick, Julie. Wheels. London: Hamilton, 1986.

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Lowe, David. Wheels. Mt Eden, Auckland: Shortland Publications, 1988.

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Cutting, Brian. Wheels. London: Heinemann, 1988.

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Fitzpatrick, Julie. Wheels. Englewood Cliffs, N.J: Silver Burdett Press, 1988.

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Daniel, Moreton, ed. Wheels. New York: Scholastic, 1999.

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1960-, Armentrout Patricia, and Armentrout Patricia 1960-, eds. Wheels. Vero Beach, FL: Rourke Pub., 2009.

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Oxlade, Chris. Wheels. Oxford: Heinemann Library, 2003.

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Book chapters on the topic "Wheels"

1

Cook, David. "Wheels." In Robot Building for Beginners, 263–77. Berkeley, CA: Apress, 2015. http://dx.doi.org/10.1007/978-1-4842-1359-9_19.

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Leister, Günter. "Wheels." In Passenger Car Tires and Wheels, 157–242. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-50118-5_2.

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Lochner, Hennie, and Peet van Staden. "Wheels." In Transito: The Truth behind the Big-Money Robberies, 55–58. London: Routledge, 2022. http://dx.doi.org/10.4324/9781003367376-8.

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Cook, David. "Wheels." In Robot Building for Beginners, 333–52. Berkeley, CA: Apress, 2002. http://dx.doi.org/10.1007/978-1-4302-0826-6_19.

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Cook, David. "Wheels." In Robot Building for Beginners, 265–82. Berkeley, CA: Apress, 2009. http://dx.doi.org/10.1007/978-1-4302-2749-6_19.

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Dennis, R. A. "Prelims - Making Wheels." In Making Wheels, i—vi. Rugby, Warwickshire, United Kingdom: Practical Action Publishing, 1994. http://dx.doi.org/10.3362/9781780442747.000.

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Dennis, R. A. "1. Introduction - Making Wheels." In Making Wheels, 1–11. Rugby, Warwickshire, United Kingdom: Practical Action Publishing, 1994. http://dx.doi.org/10.3362/9781780442747.001.

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Dennis, R. A. "2. Rim - bending machine." In Making Wheels, 12–42. Rugby, Warwickshire, United Kingdom: Practical Action Publishing, 1994. http://dx.doi.org/10.3362/9781780442747.002.

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Dennis, R. A. "3. Assembly jig." In Making Wheels, 43–64. Rugby, Warwickshire, United Kingdom: Practical Action Publishing, 1994. http://dx.doi.org/10.3362/9781780442747.003.

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Dennis, R. A. "4. Wheel-axle assemblies." In Making Wheels, 65–82. Rugby, Warwickshire, United Kingdom: Practical Action Publishing, 1994. http://dx.doi.org/10.3362/9781780442747.004.

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Conference papers on the topic "Wheels"

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Jimin, Zhang, Wan Jingyuan, Li Wen, Zhong Xujie, Zhou Hechao, Qi Yuan, and Hou Chuanlun. "Research on Simulation of Resilient Wheel Dynamometer." In 2020 Joint Rail Conference. American Society of Mechanical Engineers, 2020. http://dx.doi.org/10.1115/jrc2020-8069.

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Abstract Among many testing items of infrastructure, wheel-rail force is an important factor that causes track failure, damage, train derailment and vehicle parts damage. It is also used to evaluate the ride stability, safety and as the main basis for speed limit and speed increase. Among many methods of wheel-rail force detection, the method of wheel-rail force measurement is the most accurate and direct method of wheel-rail force measurement. The method of measuring wheel-rail interaction force using wheelset of railway locomotive and rolling stock as force sensor has the highest accuracy among all wheel-rail force measurement methods. Force-measuring wheelset is the core sensor in the dynamic test research of railway vehicles, and its performance directly affects the evaluation results of the tested objects. Before the actual line test, it is necessary to calibrate the dynamometer wheelset on the test bench. The calibration of dynamometer wheelset is an important link in the research and application of dynamometer wheelset. With the rapid development of rail transit in various countries and the great improvement of locomotive and rolling stock manufacturing technology, higher and higher requirements has been put forward for the performance of force-measuring wheelsets, which are mainly embodied in obtaining ideal sensitivity and linearity, minimizing cross-interference and all kinds of possible external interference, and reducing the influence of the change of the position of the action point on the measurement results. For the rigid wheelset, the calibration of the force-measuring wheelset is basically perfect from the actual production to the algorithm. The relevant countries also determine the calibration in the standard form. At present, more and more urban rail low floor vehicles are using independent resilient wheels. The mechanical structure of the bogie with resilient wheels is complex. At the same time, because of the small diameter of the resilient wheels and the rubber layer between the wheel hoop and the wheel center, it is difficult to find the strain/stress sensitive area accurately, as well as the unique installation process, the calibration of resilient wheels is rather difficult. This paper takes the low floor resilient wheels as the research object, and studies how to make the calibration method of high precision and suitable for the independent rotating wheels of resilient wheels and the processing and analysis of calibration data. The main research contents are as follows: the development of force-measuring wheelset which is based on the finite element simulation of a resilient wheel, stress distribution analysis, and the fabrication scheme of force-measuring wheelset which meets the requirement of test accuracy is proposed by using virtual bridge formation.

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Chia-Wen Wu and Chi-Kuang Hwang. "A novel spherical wheel driven by Omni wheels." In 2008 International Conference on Machine Learning and Cybernetics (ICMLC). IEEE, 2008. http://dx.doi.org/10.1109/icmlc.2008.4621067.

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Cummings, Scott M. "Service Wheel Temperatures and Car Condition in Relation to Thermal Mechanical Shelling." In ASME 2008 Rail Transportation Division Fall Technical Conference. ASMEDC, 2008. http://dx.doi.org/10.1115/rtdf2008-74015.

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The Wheel Defect Prevention Research Consortium (WDPRC) examined data from a wayside wheel temperature detector (WTD) located near the bottom of a grade in order to explore the root causes of hot wheels and thermal mechanical shelling. Not surprisingly, the data showed that most hot wheels, defined in this paper as a wayside WTD reading of 260°C (500°F) or greater, are found in trains descending the grade (descending trains), although they can be found in trains ascending the grade (ascending trains) as well. The majority of cars with hot wheels in ascending trains have the brakes applied at all wheel locations in the car, with unreleased or partially released hand brakes as a possible cause. While relatively few descending trains (15 out of 393) had many cars with hot wheels, these trains accounted for more than 20 percent of the descending cars with hot wheels, indicating that operational improvements could substantially reduce the quantity of hot wheels. Seventy-six percent of the descending cars with hot wheels had only a single wheel at or above 260°C (500°F). While the wheels in these cars are generally at higher temperatures than the wheels of other cars in the train, there were large temperature differences between individual wheel locations. Evidence of repeated hot wheel behavior was found in about 37 percent of the group of descending cars with hot wheels and about 20 percent of individual hot wheel locations. Two different car inspections were conducted based on the WTD data. First, a “near-real-time” inspection was conducted in which cars were quickly checked for obvious problems without removing them from the train. Next, an intensive inspection/test/teardown was conducted on bad actor cars, which showed repeated hot wheel behavior. Good actor cars, which repeatedly did not show hot wheels, were also present at the inspection/test/teardown for comparison. The cause of the hot wheels was not evident for the majority of cars at both inspections, however, bad actor cars were found to have twice the historical wheelset replacement rate of good actor cars.

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Yongxin Hao, Xu Dong, Jianxiang Li, Shiyou Mu, and Xingzhao Wang. "Mecanum wheeled motion system with three wheels." In 2016 4th International Conference on Applied Robotics for the Power Industry (CARPI). IEEE, 2016. http://dx.doi.org/10.1109/carpi.2016.7745652.

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Narvesen, Andrew, and Majura F. Selekwa. "Dynamics and Control of Four Wheeled Differentially Steered UGVs." In ASME 2014 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2014. http://dx.doi.org/10.1115/imece2014-38565.

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Autonomous navigation of ground vehicles is a growing research area. Skid steered wheeled ground vehicles are of interest because of the system’s relatively easy control parameters. Steered wheels require actuation and control for the steering and speed of the steered wheels while skid steering just requires actuation and control of the wheel speeds, usually just a left and right wheel speed. Four Wheeled differentially steered vehicles are built primarily for straight line motion since the instantaneous centers of zero velocities for the four wheels are always at infinity when there is no sliding in the wheels. When the vehicle has to negotiate a corner, it uses the differential velocities between sides to force the wheels to slide and perform the cornering maneuver. Maneuvering is difficult when the ground friction is very high because of undue stresses in the axle structure. This paper analyses the dynamics of such vehicles that relates the traction and skid friction forces and proposes a suitable control system. At this time, the paper is supported by simulation results while experimental work is still going on.

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Zhai, Chaoqin, David H. Archer, and John C. Fischer. "Performance Modeling of Desiccant Wheels: 1 — Model Development." In ASME 2008 2nd International Conference on Energy Sustainability collocated with the Heat Transfer, Fluids Engineering, and 3rd Energy Nanotechnology Conferences. ASMEDC, 2008. http://dx.doi.org/10.1115/es2008-54185.

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This paper presents the development of an equation based model to simulate the combined heat and mass transfer in the desiccant wheels. The performance model is one dimensional in the axial direction. It applies a lumped formulation in the thickness direction of the desiccant and the substrate. The boundary conditions of this problem represent the inlet outside/process and building exhaust/regeneration air conditions as well as the adiabatic condition of the two ends of the desiccant composite. The solutions of this model are iterated until the wheel reaches periodic steady state operation. The modeling results are obtained as the changes of the outside/process and building exhaust/regeneration air conditions along the wheel depth and the wheel rotation. This performance model relates the wheel’s design parameters, such as the wheel dimension, the channel size and the desiccant properties, and the wheel’s operating variables, such as the rotary speed and the regeneration air flowrate, to its operating performance. The impact of some practical issues, such as wheel purge, residual water in the desiccant and the wheel supporting structure, on the wheel performance has also been investigated.

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Desam, Vijay, M. R. K. Vakkalagadda, V. Racherla, and K. P. Vineesh. "Wheel gauge evolution of railway wheels: Effect of wheel heat treatment." In INTERNATIONAL CONFERENCE ON ADVANCES IN COMMUNICATION TECHNOLOGY AND COMPUTER ENGINEERING. AIP Publishing, 2023. http://dx.doi.org/10.1063/5.0132995.

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Schiehlen, Werner, and Holger Claus. "Multibody Dynamics and Vibration Analysis for Railcar Wheelset Design Studies." In ASME 2003 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. ASMEDC, 2003. http://dx.doi.org/10.1115/detc2003/vib-48357.

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This paper presents design studies and dynamic analyses of a railway passenger coach. The wheelset excitations are deterministic due to polygonalization generating noise in ICE passenger coaches and stochastic due to track irregularities. The strength of conventional wheelsets against vibrations due to polygonalized wheels is investigated. Radialelastic wheels reduce the unsprung mass and isolate the bogie frame and carbody from the medium and high frequency excitation caused by the wheel/rail interaction. A parameter optimization of such wheels leads to considerably reduced carbody vibrations. Stability tests are performed for various parameter sets of radialand lateralelastic wheels. The results show that designs with increased bending stiffness and improved parameters are feasible, and guarantee the stability of the wheelset motion as well as a noise reduction.

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Zhang, Kailiang, Xuyan Hou, Pingping Xue, Kaidi Zhang, Ping Liang, and Zongquan Deng. "Optimization on High Adhesive Ability of Lunar Rover Wheel Based on Discrete Element Method." In ASME 2016 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2016. http://dx.doi.org/10.1115/imece2016-65807.

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The acquirement of lunar soil samples is the foundation to analyze and know about the composition of lunar soil and the lunar geologic structure. Because of the restrictions of the sampling method, the size of driller, the drilling pressure and the driller’s output power, the traditional digging method and vertical drilling method can only acquire the samples from lunar surface to 3 meters deep. In order to acquire the deeper samples based on the existing technique methods, a new exploration concept in which a driller fixed on the rover takes a horizontal drilling and sampling at the cross section of a crater after cleaning the surface chaotic soil was proposed in this paper. When drilling horizontally, the maximum drilling pressure is limited by the low adhesive ability between wheels and soil. For the purpose of making sure enough drilling pressure, study was carried out in this paper to improve the wheel’s adhesive ability by modifying the wheel’s surface. A wheel with a new kind of micro convex structures was proved to be more adhesive and stable during horizontal drilling by comparing with the existing wheel structures, such as wheel with thorns or discontinuous rims. The structural parameters of the convex structures may have significant influences on the adhesive ability. In order to study the effects of the convex structure’s parameters on wheel’s adhesive ability, the motion process of wheels on sandy road was simulated by using a DEM software EDEM. According to the simulation results, when the structural parameters of the convex structures are: flat-end shape, length/diameter = 5 and distribution density = 81/mm2, the wheel’s adhesive ability is much better than the wheel with other parameters based on a criterion which is the ratio of the tangential force to the normal force in the tangential motion process. Besides, the friction coefficient of wheels with convex structures is about 5 times as much as the friction coefficient of normal wheels, which proves that it is a useful method to improve wheel’s adhesive ability by modifying wheel’s surface with the convex structures.

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Singh, Som P., Srinivas Chitti, S. K. Punwani, and Monique F. Stewart. "On-Board Detection of Derailed Wheel and Wheel Defects." In ASME/IEEE 2007 Joint Rail Conference and Internal Combustion Engine Division Spring Technical Conference. ASMEDC, 2007. http://dx.doi.org/10.1115/jrc/ice2007-40074.

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To improve railroad safety and efficiency, the Office of Research and Development of the Federal Railroad Administration (FRA) is running a project to develop and demonstrate an On-Board Monitoring Systems Concept (OBMSC) for freight trains. The project scope includes onboard detection of hot bearings, bearing defects, vehicle, ride quality, wheel tread defects, and derailed wheels. This paper presents an analytical model to detect derailed wheel conditions. In the model, an idealized wheelset with associated sprung and unsprung vehicle masses running on crossties is simulated using LS-Dyna software. Track structure (i.e., ties) ballast/subgrade, and soil are represented as linear elastic systems. This paper identifies wheelset vertical acceleration magnitude and associated frequencies for a derailed wheel for empty and loaded car conditions at various operating speeds. The research shows that the predicted wheelset acceleration magnitude for a derailed wheel overlap with those resulting from wheel tread defects, such as wheel flat, shells, and built-up tread. To differentiate between a derailed wheel and wheels with tread defects, a set of criteria is formulated based on amplitude and frequency ranges. Based on the analytical results from the derailed wheel model and field-tested results of revenue service wheels with tread defects, it is established that the OBMSC bearing adapter acceleration (BAA) can be used to detect a derailed wheel and conditions communicated to the train crew or other appropriate parties.

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Reports on the topic "Wheels"

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Davis, Glenn. Wheels for the Future: Should the U.S. Army Adopt an Armored Wheeled System. Fort Belvoir, VA: Defense Technical Information Center, February 1990. http://dx.doi.org/10.21236/ada234372.

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McSpadden, SB. Cylindrical Wire Electrical Discharge Machining of Metal Bond Diamond Wheels- Part II: Wheel Wear Mechanism. Office of Scientific and Technical Information (OSTI), January 2002. http://dx.doi.org/10.2172/814385.

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Van Horn, Albert. Mortality Curves for Road Wheels of Tracked Vehicles. Fort Belvoir, VA: Defense Technical Information Center, February 1987. http://dx.doi.org/10.21236/ada179766.

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Conforti, Michele, Gerard Cornuejols, and M. R. Rao. Decomposition of Balanced Matrices. Part 6. Even Wheels. Fort Belvoir, VA: Defense Technical Information Center, October 1991. http://dx.doi.org/10.21236/ada247399.

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Forbes, Kristin. Capital Controls: Mud in the Wheels of Market Discipline. Cambridge, MA: National Bureau of Economic Research, February 2004. http://dx.doi.org/10.3386/w10284.

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McClung, R. W. Characterization of grinding wheels: An annotated Bibliography. Final report. Office of Scientific and Technical Information (OSTI), December 1995. http://dx.doi.org/10.2172/187223.

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Card, David, and Dean Hyslop. Does Inflation "Grease the Wheels of the Labor Market"? Cambridge, MA: National Bureau of Economic Research, April 1996. http://dx.doi.org/10.3386/w5538.

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Kaufmann, Daniel, and Shang-Jin Wei. Does "Grease Money" Speed Up the Wheels of Commerce? Cambridge, MA: National Bureau of Economic Research, April 1999. http://dx.doi.org/10.3386/w7093.

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Schramm, Raymond E., Alfred V. Clark, Dragan V. Mitrakovic, Yossef Cohen, Peter J. Schull, and Stephen R. Schaps. Report no. 22- thread crack detection on railroad wheels :. Gaithersburg, MD: National Institute of Standards and Technology, 1991. http://dx.doi.org/10.6028/nist.ir.3967.

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Schramm, Raymond E., Alfred V. Clark, Dragan V. Mitrakovic, Stephen R. Schaps, and Todd J. McGuire. Report no. 23- residual stress detection in railroad wheels :. Gaithersburg, MD: National Institute of Standards and Technology, 1991. http://dx.doi.org/10.6028/nist.ir.3968.

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