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Добірка наукової літератури з теми "Mobility of tracked vehicles"

Автор: Grafiati

Опубліковано: 30 травня 2022

Оновлено: 31 травня 2022

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Статті в журналах з теми "Mobility of tracked vehicles"

Dong, Chao, Kai Cheng, Kangle Hu, and WenQiang Hu. "Dynamic modeling study on the slope steering performance of articulated tracked vehicles." Advances in Mechanical Engineering 9, no. 7 (July 2017): 168781401771241. http://dx.doi.org/10.1177/1687814017712418.

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Articulated tracked vehicles are used as special off-road transportation vehicles, and their mobility is gaining more attention now than before. As an important evaluation indicator of the mobility of articulated tracked vehicles, steering performance receives wide attention in particular. Most of the present studies focus on the planar steering performance; few studies employing current models concentrate on the slope steering performance of articulated tracked vehicles. To address this research gap, this study proposes a dynamic modeling method for analyzing the slope steering performance of articulated tracked vehicles. A kinematic model of a vehicle is initially constructed to analyze its kinematic characteristics during slope steering; these characteristics include velocity and acceleration. A dynamic model of a vehicle is then developed to analyze its mechanical characteristics during slope steering; these characteristics include vertical loads, driving forces, and driving moments of tracks. The created dynamic model is then applied to analyze the slope steering performance of a specific articulated tracked vehicle. A mechanical-control united simulation model and an actual test of an articulated tracked vehicle are suggested to verify the established steering model. Comparison results show the effectiveness of the proposed dynamic steering model.

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Wong, Jo Y., Paramsothy Jayakumar, and Jon Preston-Thomas. "Evaluation of the computer simulation model NTVPM for assessing military tracked vehicle cross-country mobility." Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering 233, no. 5 (April 23, 2018): 1194–213. http://dx.doi.org/10.1177/0954407018765504.

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In the United States and some other NATO (North Atlantic Treaty Organization) countries, the NATO Reference Mobility Model is currently used to evaluate military ground vehicle mobility. The module of the NATO Reference Mobility Model for predicting the cross-country performance of military vehicles is empirically based and was developed using test data collected decades ago. The NATO Reference Mobility Model has inherent limitations, such as the uncertainty whether its empirical relations can be extrapolated beyond the test conditions upon which they were derived or whether it can be used for evaluating new-generation military vehicles. This suggests that there is a need for the development of a physics-based model that takes into account the advancements in terramechanics and modelling/simulation techniques. This paper describes the results of a detailed evaluation of a physics-based model – the Nepean Tracked Vehicle Performance Model – for assessing military tracked vehicle cross-country performance. The performance of a notional tracked vehicle (an armoured personnel carrier) predicted by the latest version of the Nepean Tracked Vehicle Performance Model is compared with test data obtained on sandy terrain, muskeg and snow-covered terrain. The correlations between the predicted and measured performance are evaluated using the coefficient of correlation, coefficient of determination, root mean square deviation and coefficient of variation. The applications of the Nepean Tracked Vehicle Performance Model to predicting the maximum possible vehicle speed (speed-made-good) on a given terrain, the sensitivity of vehicle performance to variations in the values of terrain parameters and the mean maximum pressure are demonstrated. The results of this study indicate that the Nepean Tracked Vehicle Performance Model has potential to form the basis for the development of the next-generation cross-country performance assessment methodology for military tracked vehicles.

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Wong, J. Y. "Optimization of the Tractive Performance of Articulated Tracked Vehicles Using an Advanced Computer Simulation Model." Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering 206, no. 1 (January 1992): 29–45. http://dx.doi.org/10.1243/pime_proc_1992_206_158_02.

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This paper describes the results of a study of the effects of articulation joint configuration, suspension characteristics, location of the centre of gravity and initial track tension on the mobility of a two-unit, articulated tracked vehicle. The study was carried out using a comprehensive computer simulation model known as NTVPM-86. The results show that suspension characteristics, location of the centre of gravity and initial track tension have noticeable effects on the mobility of articulated tracked vehicles over marginal terrain, while the articulation joint angle has a less significant influence on vehicle performance. Locking the articulation joint between the two units of an articulated tracked vehicle usually causes a degradation of tractive performance. The approach to the optimization of the design of articulated tracked vehicles is demonstrated. It is shown that the simulation model NTVPM-86 can play a significant role in the optimization of articulated tracked vehicle design or in the evaluation of vehicle candidates for a given mission and environment.

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Qiao, Xin-yong, Ying Jin, and Cheng Gu. "Vibration Response and Evaluation Method of High-Speed Tracked Vehicles Driving Off-Road." Shock and Vibration 2022 (February 3, 2022): 1–18. http://dx.doi.org/10.1155/2022/2866236.

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In the stage of vehicle demonstration and development, equipment finalization test, and equipment service, an important role is played by the mobility prediction and evaluation method of tracked vehicles under complex road conditions, in which vehicle vibration response evaluation is the main content of off-road mobility prediction and evaluation. In this paper, based on the principle of multibody dynamics, a high-speed tracked vehicle action system model was established by using the simulation analysis method. The vibration response of the vehicle on uneven pavement was evaluated from four aspects: driver comfort, driver absorbed power, occupant handling efficiency, and suspension dynamic travel. Simultaneously, the shock vibration peak value was utilized to evaluate the vibration response of the vehicle during obstacle crossing. Three fitting methods, namely polynomial response surface, Kriging method, and radial basis function neural network, were used to establish approximate models between the design variables and the objective function, respectively. The pros and cons of each approximate model were analyzed by comparing the approximate errors between the predicted values of the fitting model and the actual response values of the simulation model. The results of this paper are of reference significance for the prediction and evaluation of the off-road mobility of high-speed tracked vehicles.

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Kovácsházy, Miklós. "The Modernization of the Armored Combat Vehicle Fleet of the Hungarian Defense Forces in Terms of Mobility." Academic and Applied Research in Military and Public Management Science 13, no. 2 (June 30, 2014): 337–46. http://dx.doi.org/10.32565/aarms.2014.2.12.

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The Hungarian Defence Forces (Magyar Honvédség) have several off–road combat vehicles of different ages and condition. One can find tracked– and wheeled equipment, such as battle tanks, armored infantry fighting vehicles, armored personnel carriers, special purpose vehicles, and engineering machinery among them. Some of these devices are now obsolete, the exchange of the rest is becoming due. This study looks at the armored combat vehicle portfolio of the Hungarian Defence Forces, seeking an answer to the question what the role of the mobility of armed forces is; are only wheeled or tracked equipment needed, or both. I am going to review, on the basis of the main sources of literature, what results have been achieved in national military–technical life, in the field of mobility, by comparison and an examination of a selection of military use off–road vehicles.

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Wong, J. Y., and J. Preston-Thomas. "Investigation into the Effects of Suspension Characteristics and Design Parameters on the Performance of Tracked Vehicles using an Advanced Computer Simulation Model." Proceedings of the Institution of Mechanical Engineers, Part D: Transport Engineering 202, no. 3 (July 1988): 143–61. http://dx.doi.org/10.1243/pime_proc_1988_202_169_02.

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This paper describes the results of an investigation into the effects of the characteristics of the suspension system, initial track tension, vehicle weight and location of the centre of gravity on the tractive performance of tracked vehicles over unprepared terrain. The investigation was carried out using a newly developed computer simulation model NTVPM-86. The results show that the suspension characteristics, initial track tension and vehicle weight have noticeable effects on the mobility of tracked vehicles over marginal terrain, while the location of the centre of gravity, within the normal range, has a less significant influence on the tractive performance. It is demonstrated that the simulation model NTVPM-86 can play a significant role in the optimization of tracked vehicle design or in the evaluation of vehicle candidates for a given mission and environment.

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Das, R. K., A. Upadhyay, and R. K. Garg. "An Unmanned Tracked Vehicle for Snow Research Applications." Defence Science Journal 67, no. 1 (December 23, 2016): 74. http://dx.doi.org/10.14429/dsj.1.8952.

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<p>Lightweight robotic vehicles can be designed for over-snow mobility to carry out a variety of snow and glacier related studies like carrying out GPR survey of cracks & crevasses over ice crusts that cannot support foot travel, for collecting snow samples and carrying out sub-surface experiments with penetrometers on terrain that are dangerous for human, GPS mapping of avalanche debris etc. Sinkage, resistance to snow compaction, loss of traction and ingestion of snow into the driving system are some of the challenges that an unmanned lightweight tracked vehicle faces in snowbound terrain. In present work, a lightweight and unmanned remotely operated vehicle (ROV) is conceptualized and developed as a technological solution. In this paper design and features of this vehicle, named <em>HimBot</em>, are presented along with the results obtained from tests carried over snow at Solang Nullah field observatory of SASE in February 2013. The outcome of this work will help in developing an optimized design of an ROV for over snow mobility for a variety of applications.</p>

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Kuznetsova, V. N., and R. V. Romanenko. "Basic aspects of methodology for justifying the performance characteristics of a tracked machine with electromechanical transmission." Russian Automobile and Highway Industry Journal 17, no. 5 (November 11, 2020): 574–83. http://dx.doi.org/10.26518/2071-7296-2020-17-5-574-583.

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Introduction. High rates of new territories development, the development of the construction and road-transport complex, mining and transportation of minerals is impossible without machinery and equipment. The use of a caterpillar propeller as a base chassis has both advantages and disadvantages. One of the main problems is ensuring the mobility of tracked vehicles. The use of mixed-type power units and transmissions allows solving this scientific problem and ensuring the efficiency of technological operations during the operation of tracked vehicles. Modern vehicles use a variety of transmission types, including electromechanical transmission (EMT). In such a design, torque conversion and change in the speed of the drive wheels of the caterpillar propulsion device are carried out by means of traction electric motors (TEM). The aim of the use of electromechanical transmission in tracked machines is to increase the tractive-dynamic properties and fuel economy and, as a result, to improve the mobility of the machine. The combination of an internal combustion engine (ICE) and electric machines in a caterpillar machine (CM) makes it possible to maximize the advantages of the latter and compensate for the disadvantages of each. These improvements are achieved mainly through the different performance characteristics of the traction electric engine (TEE) and the energy storage device (ESD).Research methods. A system analysis served as the basis for the theoretical studies. A mathematical model of the motion of a tracked vehicle with an electromechanical transmission has been developed. The methods of the theory of algorithms were used.Results. A structural diagram of the arrangement of a series connection of elements of an electromechanical transmission of a tracked vehicle, protected by a patent of the Russian Federation, has been developed and presented. An algorithm has been developed for the interaction of its elements taking into account the movement of the machine. The main mathematical relationships included in the methodology for substantiating the operational characteristics of a tracked vehicle with an electromechanical transmission are presented.Discussion and conclusion. Using the developed approaches and methodology, it will be possible to calculate the components of the electromechanical transmission in order to ensure the required mobility of the caterpillar machine, to assess its fuel economy, as well as its maximum and average speed.

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Wong, J. Y. "Development of high-mobility tracked vehicles for over snow operations." Journal of Terramechanics 46, no. 4 (August 2009): 141–55. http://dx.doi.org/10.1016/j.jterra.2008.03.002.

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Dubin, D. A., O. A. Nakaznoi, D. A. Chizhov, and A. Yu Shmakov. "SPECIALIZED MEASURMENT SYSTEM FOR EXPERIMENTAL RESEARCH OF SUSPENSION SYSTEM LOADING CONDITIONS OF A HIGH MOBILITY TRACKED VEHICLES." Traktory i sel hozmashiny 84, no. 4 (April 15, 2017): 16–24. http://dx.doi.org/10.17816/0321-4443-66266.

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Loading of cushioning systems, as a condition caused by external influences and operating conditions, for highspeed tracked vehicles is determined by the characteristics of the track profile and motion modes. The most reliable estimate of the operational parameters of loading of parts and suspension assemblies is obtained experimentally using specialized measuring equipment. Within the conducted investigations for determining of kinematic and force parameters of loading of the elements of the cushioning system of a 14-ton tracked vehicle while driving on forest ground roads, a measuring system has been developed that realizes estimation of the loading characteristics by the angular position of the suspensions relative to the vehicle body. The measuring system consists of the hardware and software subsystems and records angles of twisting of torsion shafts as a function of time, with subsequent conversion and statistical processing of obtained data into the loading characteristics of elastic elements and suspension arms. According to received sample data, the software subsystem calculates average durability of torsion shafts in order to determine the most loaded suspensions. The advantage of the study is in relative simplicity and versatility. The hardware subsystem and rigging of the sensor equipment attachment do not require making changes in the construction of the undercarriage and allows to carry out investigations on most types of tracked vehicles. The software subsystem can be adapted for studies of loading of tracked machines of different weight categories. Reliability of the test equipment, as well as stability of formation and recording of measuring signals, was evaluated in polygon tests during motion of a tracked vehicle in difficult road conditions along 350 km tracks.

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Дисертації з теми "Mobility of tracked vehicles"

Bodin, Anders. "Improving the mobility performance of tracked vehicles in deep snow /." Luleå : Luleå tekniska univ, 2002. http://epubl.luth.se/1402-1544/2002/10/index.html.

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Johnson, Christopher Patrick. "Comparative Analysis of Lightweight Robotic Wheeled and Tracked Vehicle." Thesis, Virginia Tech, 2012. http://hdl.handle.net/10919/76994.

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This study focuses on conducting a benchmarking analysis for light wheeled and tracked robotic vehicles. Vehicle mobility has long been a key aspect of research for many organizations. According to the Department of Defense vehicle mobility is defined as, "the overall capacity to move from place to place while retaining its ability to perform its primary mission"[1]. Until recently this definition has been applied exclusively to large scale wheeled and tracked vehicles. With new development lightweight ground vehicles designed for military and space exploration applications, the meaning of vehicle mobility must be revised and the tools at our disposal for evaluating mobility must also be expanded. In this context a significant gap in research is present and the main goal of this thesis is to help fill the void in knowledge regarding small robotic vehicle mobility assessment. Another important aspect of any vehicle is energy efficiency. Thus, another aim of this study is to compare the energy needs for a wheeled versus tracked robot, while performing similar tasks. The first stage of the research is a comprehensive review of the state-of-the-art in vehicle mobility assessment. From this review, a mobility assessment criterion for light robots will be developed. The second stage will be outfitting a light robotic vehicle with a sensor suite capable of capturing relevant mobility criteria. The third stage of this study will be an experimental investigation of the mobility capability of the vehicle. Finally the fourth stage will include quantitative and qualitative evaluation of the benchmarking study.
Master of Science

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Gothing, Grant Edward. "Development of the "Discretized Dynamic Expanding Zones with Memory" Autonomous Mobility Algorithm for the Nemesis Tracked Vehicle Platform." Thesis, Virginia Tech, 2007. http://hdl.handle.net/10919/34404.

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The Nemesis tracked vehicle platform is a differentially driven Humanitarian Demining tractor developed by Applied Research Associates, Inc. The vehicle is capable of teleoperational control and is outfitted with a sensor suite used for detecting and neutralizing landmines. Because the detection process requires the vehicle to travel at speeds less than 0.5 km/h, teleoperation is a tedious process. The added autonomous capabilities of waypoint navigation and obstacle avoidance could greatly reduce operator fatigue.

ARA chose to leverage Virginia Tech's experience in developing an autonomous mobility capability for the Nemesis platform. The resulting algorithms utilize the waypoint navigation techniques of Virginia Tech's JAUS (Joint Architecture for Unmanned Systems) toolkit, and a modified version of the Dynamic Expanding Zones (DEZ) algorithm developed for the 2005 DARPA Grand Challenge. The modified approach discretizes the perception zones of the DEZ algorithm and provides the added capability of obstacle memory, resulting in the Discretized Dynamic Expanding Zones with Memory (DDEZm) algorithm. These additions are necessary for efficient autonomous control of the differentially driven Nemesis vehicle.

The DDEZm algorithm was coded in LabVIEW and used to autonomously navigate the Nemesis vehicle through a waypoint course while avoiding obstacles. The Joint Architecture for Unmanned Systems (JAUS) was used as the communication standard to facilitate the interoperability between the software developed at Virginia Tech and the existing Nemesis software developed by ARA. In addition to development and deployment, the algorithm has been fully documented for embedded coding by a software engineer. With embedded implementation on the vehicle, this algorithm will help to increase the efficiency of the landmine detection process, ultimately saving lives.

Master of Science

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Волосніков, Сергій Олександрович. "Моделі та методи підвищення характеристик рухливості гусеничних машин на основі автоматизованого керування криволінійним рухом". Thesis, НТУ "ХПІ", 2018. http://repository.kpi.kharkov.ua/handle/KhPI-Press/38362.

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Дисертація на здобуття наукового ступеня кандидата технічних наук за спеціальністю 05.13.03 – системи та процеси керування. – Національний технічний університет "Харківський політехнічний інститут", Харків, 2018. Дисертація присвячена розробці й удосконаленню методів керування криволінійним рухом гусеничних машин для забезпечення підвищення характеристик керованості та рухливості. Проведено аналіз систем автоматизованого керування які застосовуються в системах керування рухом гусеничних машин. Запропоновано спосіб керування гусеничною машиною при здійсненні криволінійного руху на межі наближення до заносу для збільшення середньої швидкості руху. З метою забезпечення стійкості руху гусеничної машини в повороті удосконалено метод, що дозволяє визначати мінімальний радіус повороту, до значення якого, для заданих швидкості руху та дорожньо-ґрунтових умов заносу, під дією відцентрової сили не виникає. Розроблена модель функціонування цифрової автоматизованої системи щодо запобігання заносу для гусеничної платформи, яка обладнана системою автоматизованого керування поворотом та використовує спосіб повороту шляхом включення передачі (n-1) на борту, що відстає. Отримав подальший розвиток метод вирішення задачі математичного моделювання руху центру мас гусеничної платформи за допомогою аналітичного рішення з використанням перетворення Лапласу, який дозволяє проводити параметричний синтез системи управління поворотом гусеничної платформи. Визначено критерії оцінки основних характеристик електродвигунів, а також інших компонентів системи для створення гібридного приводу для гусеничних машин на базі комплектуючих, що виробляються серійно.
Dissertation for the degree of candidate of technical Sciences on specialty 05.13.03 – management systems and processes. – National Technical University "Kharkiv Polytechnic Institute", Kharkiv, 2018. The thesis is dedicated to the development and improvement of methods for controlling the curvilinear motion of tracked vehicles in order to increase their controllability and mobility. The analysis of automated control systems of tracked vehicles used in motion control systems was conducted. A method for controlling a tracked vehicle during curvilinear motion on the verge of a skid to increase the average driving speed is proposed. In order to ensure the tracked vehicle movement stability at the time of turn, a method has been developed that allows to determine the minimum turning radius at which, for a given speed and road conditions, skidding does not occur under the action of the centrifugal force. A model of the operation of a digital automated skid prevention system for a tracked vehicle has been developed, which is equipped with an automatic steering control system and does the steering by engaging gear (n-1) on the lagging board. A method for solving the problem of mathematical modeling of the movement of the center of mass of a tracked vehicle with the help of an analytical solution using the Laplace transform has been developed, allowing to carry out parametrical studies of the tracked vehicles at curvilinear motion. The criteria for estimating the main characteristics of electric motors as well as other components of the system for creating a hybrid electric drive for tracked vehicles based on serially produced components have been determined.

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Chiang, Chi-Feng. "Handling characteristics of tracked vehicles on non-deformable surfaces." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1999. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape8/PQDD_0018/MQ48517.pdf.

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Chiang, Chi-Feng Carleton University Dissertation Engineering Mechanical and Aerospace. "Handling characteristics of tracked vehicles on non-deformable surfaces." Ottawa, 1999.

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Peterson, Jeremy. "Directional control of a tracked machine utilizing a dual-path hydrostatic transmission /." free to MU campus, to others for purchase, 2003. http://wwwlib.umi.com/cr/mo/fullcit?p1418057.

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Kasim, Salim Y. "Ride Analysis For Suspension System of off-Road Tracked Vehicles." Thesis, Cranfield University, 1991. http://dspace.lib.cranfield.ac.uk/handle/1826/4664.

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In this work. an attempt has been made to develop a programming package for ride analysis of off-road vehicles based upon a finite-element formulation of vehicle suspension systems. Mathematical modelling of generalised suspension systems has been carried out with several non-linear aspects being investigated and implemented in the programming package. such as large deflection. non-linear characteristics of springs and dampers. bump stops and wheel separation. Different types of soi 1 have been considered together with an appropriate modelling of vehicle tracks. Several methods for time integration of dynamic equations have been investigated so as to deal wi th numerical instabi 1 i ty problems expected for off-road suspension systems which often have "stiff" differential equations of motion. Three ride analysis criteria have also been considered in the programming package. Several case studies have been analysed using the developed programming package. They consist of two simple case studies with known analytical solutions. an existing wheeled off-road vehicle with published analog computer resul t s , and an off-road tracked vehicle wi th known experimental results. The package has been validated and proved to be an acceptable tool for the ride analysis of off-road vehicles. within the approximating assumptions considered. Several measures for future development have also been suggested.

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Lee, Sang Uk S. M. Massachusetts Institute of Technology. "Robust motion planning for autonomous tracked vehicles in deformable terrain." Thesis, Massachusetts Institute of Technology, 2016. http://hdl.handle.net/1721.1/106779.

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Анотація:

Thesis: S.M., Massachusetts Institute of Technology, Department of Mechanical Engineering, 2016.
Cataloged from PDF version of thesis.
Includes bibliographical references (pages 90-95).
Ensuring the safety of autonomous vehicles during operation is a challenging task. Numerous factors such as process noise, sensor noise, incorrect model etc. can yield uncertainty in robot's state. Especially for tracked vehicles operating on rough terrain, vehicle slip due to vehicle terrain interaction affects the vehicle system significantly. In such cases, the motion planning of the autonomous vehicle must be performed robustly, considering the uncertain factors in advance of the real-time navigation. The primary contribution of this thesis is to present a robust optimal global planner for autonomous tracked vehicles operating in off-road terrain with uncertain slip. In order to achieve this goal, three tasks must be completed. First, the motion planner must be able to work efficiently under the non-holonomic vehicle system model. An approximate method is applied to the tracked vehicle system ensuring both optimality and efficiency. Second, the motion planner should ensure robustness. For this, a robust incremental sampling based motion planning algorithm (CC-RRT*) is combined with the LQG-MP algorithm. CC-RRT* yields the optimal and probabilistically feasible trajectory by using a chance constrained approach under the RRT* framework. LQG-MP provides the capability of considering the role of compensator in the motion planning phase and bounds the degree of uncertainty to appropriate size. Third, the effect of slip on the vehicle system must be modeled properly. This can be done in advance of operation if we have experimental data and full information about the environment. However, in case where such knowledge is not available, the online slip estimation can be performed using system identification method such as the IPEM algorithm. Simulation results shows that the resulting algorithms are efficient, optimal, and robust. The simulation was performed on a realistic scenario with several important factors that can increase the uncertainty of the vehicle. Experimental results are also provided to support the validity of the proposed algorithm. The proposed framework can be applied to other robotic systems where robustness is an important issue.
by Sang Uk Lee.
S.M.

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Книги з теми "Mobility of tracked vehicles"

Tracked vehicles. Vero Beach, Fla: Rourke Enterprises, 1989.

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Crismon, Fred. U.S. military tracked vehicles. Osceola, WI, USA: Motorbooks International, 1992.

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Croizat, Victor J. Across the reef: The amphibious tracked vehicle at war. Blandford: Arms and Armour Press, 1989.

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Mesko, Jim. Amtracs in action. Carrollton, TX: Squadron/Signal Publications, 1993.

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Croizat, Victor. Across the reef: The amphibious tracked vehicle at war. London: Blandford, 1989.

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Boger, Dan C. Development phase cost drivers for production costs: The case of tracked vehicles. Monterey, Calif: Naval Postgraduate School, 1993.

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Frank, Reinhard. German medium half-tracked prime movers: 1934-1945. Atglen, PA: Schiffer Pub., 1997.

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Harper, David E. LVT 2, LVT (A) 2. Moscow Mills, MO: Letterman Publications, 2003.

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Harper, David E. LVT 2, LVT (A) 2. Moscow Mills, MO: Letterman Publications, 2003.

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Hsu, Ching-Hsien, Feng Xia, Xingang Liu, and Shangguang Wang, eds. Internet of Vehicles - Safe and Intelligent Mobility. Cham: Springer International Publishing, 2015. http://dx.doi.org/10.1007/978-3-319-27293-1.

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Частини книг з теми "Mobility of tracked vehicles"

Dobretsov, R. Yu, A. V. Lozin, and M. S. Medvedev. "Hyperbolic Steering for Tracked Vehicles." In Proceedings of the 4th International Conference on Industrial Engineering, 2367–74. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-95630-5_255.

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Maheswari, K. Latha, S. Kavitha, and M. Kathiresh. "Introduction to Electric Vehicles and Hybrid Electric Vehicles." In E-Mobility, 1–29. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-85424-9_1.

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Santhakumar, G., and Ruban Whenish. "Internet of Vehicles." In E-Mobility, 259–81. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-85424-9_14.

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S., Madhu, Ashwini A., and Karanam Vasudha. "Power Flow in Hybrid Electric Vehicles and Battery Electric Vehicles." In E-Mobility, 99–118. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-85424-9_6.

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Chan, C. C. "Renaissance and Electric Vehicles Development." In Mobility Engineering, 1–9. Singapore: Springer Singapore, 2017. http://dx.doi.org/10.1007/978-981-10-3099-4_1.

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Jose, P. Sweety, P. Subha Hency Jose, G. Jims John Wessley, and P. Rajalakshmy. "Environmental Impact of Electric Vehicles." In E-Mobility, 31–42. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-85424-9_2.

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Bruzzone, Luca, Giovanni Berselli, Pietro Bilancia, and Pietro Fanghella. "Design Issues for Tracked Boat Transporter Vehicles." In Advances in Mechanism and Machine Science, 3671–79. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-20131-9_362.

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Bourassa, P., G. Payre, B. Marcos, B. Ezzerrouqi, and S. Reiher. "Kinematics and Dynamics of Ski-Tracked Vehicles." In The Dynamics of Vehicles on Roads and on Tracks, 34–46. London: CRC Press, 2021. http://dx.doi.org/10.1201/9781003210900-4.

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McCarthy, John. "Mobility as a service." In Cities for Driverless Vehicles, 219–40. London: ICE Publishing, 2021. http://dx.doi.org/10.1680/cdv.64522.219.

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Sobel, Dawid, Karol Jędrasiak, Krzysztof Daniec, Józef Wrona, Piotr Jurgaś, and Aleksander M. Nawrat. "Camera Calibration for Tracked Vehicles Augmented Reality Applications." In Innovative Control Systems for Tracked Vehicle Platforms, 147–62. Cham: Springer International Publishing, 2014. http://dx.doi.org/10.1007/978-3-319-04624-2_8.

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Тези доповідей конференцій з теми "Mobility of tracked vehicles"

Akcabay, Deniz T., N. C. Perkins, and Zheng-Dong Ma. "Predicting the Mobility of Tracked Robotic Vehicles." In ASME 2004 International Mechanical Engineering Congress and Exposition. ASMEDC, 2004. http://dx.doi.org/10.1115/imece2004-60877.

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Robotic vehicles are an attractive alternative to manned vehicles in hazardous or dangerous off road and urban environments. Present designs of robot vehicles employ wheels or tracks as the running gears and, in general, tracks provide superior mobility on rough or uneven terrain. This paper presents a multibody dynamics model of a tracked robotic vehicle for the purpose of predicting mobility in two different scenarios: 1) steep terrains, and 2) urban terrains in the form of staircases. In both scenarios we study the physical limitations on vehicle mobility imposed by key vehicle design variables and vehicle operating conditions. Example vehicle design variables include the location of the mass center, grouser penetration, and track/terrain friction. Example vehicle operating conditions include climbing under full versus partial track/terrain contact, and climbing on straight versus switch back courses.

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Choi, J. H., H. S. Ryu, D. S. Bae, G. S. Huh, and D. C. Park. "Dynamic Track Tension of High Mobility Tracked Vehicles." In ASME 2001 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. American Society of Mechanical Engineers, 2001. http://dx.doi.org/10.1115/detc2001/vib-21309.

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Abstract In this paper, dynamic track tension for high mobility tracked vehicle is investigated by multibody dynamic simulation techniques. This research focuses on a heavy military tracked vehicle which has sophisticated suspension and rubber bushed track systems. In order to obtain accurate dynamic track tension of track subsystems, each track link is modeled as a body which has six degrees of freedom. A compliant bushing element is used to connect track links. Various virtual proving ground models are developed to observe dynamic changes of the track tension. The dynamic track tensions are monitored at several stationary hull points and points on the track link itself. The effects of pre-tensions, traction forces, turning resistances, sprocket torques, ground profiles, and vehicle speeds, for dynamic responses of track tensions are explored, respectively. Numerical studies of the dynamic track tension are validated against the experimental measurements.

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Huh, Kunsoo, Byung Hee Cho, and Jin Hwan Choi. "Development of a Track Tension Monitoring System in Tracked Vehicles." In ASME 1999 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 1999. http://dx.doi.org/10.1115/imece1999-0064.

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Abstract The mobility of tracked vehicles is mainly influenced by the characteristics of the track assembly and by the interaction between tracks and soil. In particular, the track tension is closely related to the maneuverability of tracked vehicles and the durability of tracks and suspension systems. In order to minimize the excessive load on the tracks and to prevent the peal-off of tracks from the road wheels, it is required to maintain the optimum track tension throughout the maneuver. However, the track tension cannot be easily measured due to the limitation in the sensor technology, harsh environment, etc. In this paper an indirect track tension monitoring system is developed based on idler assembly models, a geometric relation around the idler, and the tractive force estimated by using the Extended Kalman Filter. The performance of the tension monitoring system is verified with the results obtained from the Multi-Body Dynamics model.

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Song, Peilin, Pete Melick, and James Horchner. "A Framework for Modeling and Simulation of Tracked Vehicles of High Mobility." In ASME 2011 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. ASMEDC, 2011. http://dx.doi.org/10.1115/detc2011-48355.

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This paper presents a modeling and simulation framework for tracked vehicles for ride comfort and load prediction analysis. The development began with the identification of the key issues such as formulations, integration schemes and contact (with friction) modeling on which the comparative studies are conducted. Based on the results of the investigations, the framework and process for the modeling and simulation of tracked vehicles are established and appropriate algorithms for contact and friction are developed. To facilitate the modeling and simulation process, a Python-based modeling environment was developed for process automation and design optimization. The developed framework has been successfully applied to the dynamic load predication of a military tracked vehicle. The parameter optimization enabled with the Python-based process automation tool helps improve the design and modification of vehicles for significantly improved fatigue life of suspension component.

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Choi, J. H., D. S. Bae, and H. S. Ryu. "A Compliant Double Pin Track Link Model for Multibody Tracked Vehicles." In ASME 1999 Design Engineering Technical Conferences. American Society of Mechanical Engineers, 1999. http://dx.doi.org/10.1115/detc99/vib-8199.

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Abstract It is the objective of this investigation to develop compliant double pin track link models and investigate the use of these models in the dynamic analysis of high mobility tracked vehicles. There are two major difficulties encountered in developing the compliant track models discussed in this paper. The first is due to the fact that the integration step size must be kept small in order to maintain the numerical stability of the solution. This solution includes high oscillatory signals resulting from the impulsive contact forces and the use of stiff compliant elements to represent the joints between the track links. The characteristics of the compliant, elements used in this investigation to describe the track joints are measured experimentally. The second difficulty encountered in this investigation is due to the large number of the system equations of motion of the three dimensional multibody tracked vehicle model. The dimensionality problem is solved by decoupling the equations of motion of the chassis subsystem and the track subsystems. Recursive methods are used to obtain a minimum set of equations for the chassis subsystem. Several simulation scenarios including an accelerated motion, high speed motion, braking, and turning motion of the high mobility vehicle are tested in order to demonstrate the effectiveness and validity of the methods proposed in this investigation.

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Gunter, David D., and Michael D. Letherwood. "Using Modeling and Simulation to Evaluate Traction of Track Vehicles." In ASME 2000 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2000. http://dx.doi.org/10.1115/imece2000-1201.

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Abstract The US Army Tank-automotive and Armaments Command (TACOM) has the mission of procuring and managing the US Army’s fleet of wheeled and tracked vehicles. TACOM’s Tank Automotive Research, Development and Engineering Center (TARDEC) provides engineering and scientific support directed at maximizing the capability of all Department of Defense (DOD) ground vehicle systems and ensuring the safety of their personnel. In order to reduce the time required to deploy troops and equipment, engineers and scientists at TARDEC have been investigating modifications to ground vehicles that lead to overall increases in performance, especially in the areas of off-road mobility, and on-road stability and handling. This paper describes an effort to assess the dynamic performance of a track laying (tracked) Recovery Vehicle towing a disabled tracked vehicle whose weight is approximately equal to that of the Recovery Vehicle. Specifically, this paper will describe techniques employed to develop a 3-dimensional dynamic model of the vehicle combination, and apply the model to evaluate towing performance of the recovery vehicle. It also describes measures aimed at minimizing incidences of jackknifing when braking on downhill slopes, as well as vehicle design modifications that were modeled and simulated in efforts to reduce the combination’s jackknife vulnerability. These modifications included tow bar schemes that locked-out inter-vehicle yaw, and external surge brakes mounted on the towed vehicle. Techniques used to model and simulate the tractive effort available to the Recovery Vehicle on varied soil types are described as are analyses used to determine the combination’s ability to climb grades. Vehicle modifications aimed at increasing the tractive effort available, such as tow bar pitch orientation and track shoe geometry changes are also described.

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Shriyan, Goutam, and Vikas Vithal Kshirsagar. "Modeling Tracked Vehicle to Determine Undercarriage Performance." In International Conference on Advances in Design, Materials, Manufacturing and Surface Engineering for Mobility. 400 Commonwealth Drive, Warrendale, PA, United States: SAE International, 2019. http://dx.doi.org/10.4271/2019-28-0116.

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Qigang Shang, Hongyan Wang, and Li Ying. "Design of the refitted high mobility tracked vehicle suspension system." In 2009 International Conference on Mechatronics and Automation (ICMA). IEEE, 2009. http://dx.doi.org/10.1109/icma.2009.5244787.

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McCullough, Mike, Ashok Khubchandani, Albert Shyu, and Darren Simoni. "Verification and Fidelity of High Mobility Tracked Vehicle Dynamic Models." In SAE 2006 World Congress & Exhibition. 400 Commonwealth Drive, Warrendale, PA, United States: SAE International, 2006. http://dx.doi.org/10.4271/2006-01-0928.

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Schmid, I. C., W. Ehlert, and S. Pott. "Mobility Of Tracked Vehicles And Simulation Of The Dynamics Of Motion On The PAISI Test Plant." In 22nd FISITA Congress. 400 Commonwealth Drive, Warrendale, PA, United States: SAE International, 1988. http://dx.doi.org/10.4271/885114.

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Mathew, Jijo K., Deborah Horton, and Darcy M. Bullock. Utilization of Dedicated Electric Vehicle Plug-In Charging Stations in a College Campus Environment. Purdue University, 2021. http://dx.doi.org/10.5703/1288284317436.

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As electric mobility is expanding at a rapid pace, the standardized availability of gas stations compared to a scarcity of charging stations continues to be the greatest challenge for electric vehicles. With cities, university campuses and businesses promoting electric vehicle infrastructure and incentives, it is necessary to develop key performance metrics and visualizations that can track the utilization of the charging infrastructure. This study performs a manual data collection at dedicated plug-in charging stations across Purdue University to assess their utilization. Approximately 2,800 observations were conducted over 50 days across seven level 2 plug-in charging stations. Results showed that for large portion of the observations, vehicles were parked at the spots (40%) but not plugged in. Vehicles plugged in to charging stations accounted for 34% of observations. Charging station spots were vacant for 25% of observations indicating that current infrastructure meets the demand. There were 74 unique vehicles that used the spots, of which 27% were plugged in more than 10 times. Illegally parked vehicles accounted for less than 1% with only 4 repeat offenders who used these spots more than once. As electric deployment continues to increase, performance metrics will be an integral tool for agencies and decision makers to help with the maintenance and expansion of electric vehicle infrastructure.

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Shabana, Ahmed A. Nonlinear Dynamics of Tracked Vehicles. Fort Belvoir, VA: Defense Technical Information Center, January 1997. http://dx.doi.org/10.21236/ada344299.

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Goodman, John. Industrial Assessment for Tracked Combat Vehicles,. Fort Belvoir, VA: Defense Technical Information Center, October 1995. http://dx.doi.org/10.21236/ada303814.

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ABERDEEN TEST CENTER MD. Infrared Measurements of Wheeled and Tracked Vehicles. Fort Belvoir, VA: Defense Technical Information Center, October 2011. http://dx.doi.org/10.21236/ada550346.

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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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Rodriguez, Gumersindo, Paul Touchet, Alan R. Teets, and David P. Flanagan. Elastomers for Tracked Vehicles - Development of Rubber Compounds for Bushings. Fort Belvoir, VA: Defense Technical Information Center, October 1999. http://dx.doi.org/10.21236/ada370200.

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Boger, Dan C., and David S. Malcolm. Development Phase Cost Drivers for Production Costs: The Case of Tracked Vehicles. Fort Belvoir, VA: Defense Technical Information Center, February 1993. http://dx.doi.org/10.21236/ada263196.

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ARMY COLD REGIONS TEST CENTER FORT GREELY AK. Cold Regions Logistic Supportability Testing of Wheeled, Tracked and Special Purpose Vehicles. Fort Belvoir, VA: Defense Technical Information Center, June 1985. http://dx.doi.org/10.21236/ada158758.

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Fraade-Blanar, Laura, Nico Larco, Ryan Best, Tiffany Swift, and Marjory S. Blumenthal. Older Adults, New Mobility, and Automated Vehicles. Washington, DC: AARP Public Policy Institute, February 2021. http://dx.doi.org/10.26419/ppi.00132.001.

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Baladi, George Y., Donald E. Barnes, and Rebecca P. Berger. Steerability Analysis of Tracked Vehicles: Theory and User's Guide for Computer Program TVSTEER. Fort Belvoir, VA: Defense Technical Information Center, August 1986. http://dx.doi.org/10.21236/ada172008.

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