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Journal articles on the topic 'Wheel Coupled Method (WCM)'

Author: Grafiati

Published: 3 June 2025

Last updated: 31 July 2025

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1

Wang, Jun, Jian Xin Liu, and Yi Fan Li. "A New Method for Heavy-Haul Train Operation Monitoring." Advanced Materials Research 765-767 (September 2013): 2159–63. http://dx.doi.org/10.4028/www.scientific.net/amr.765-767.2159.

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Based on the vehicle-track coupled dynamic theory, a new method was developed to monitor the state of heavy-haul train, this method can dynamically monitor the wheel/rail dynamic safety performance of heavy-haul train in the dangerous operation condition. The results show that: wheel/rail dynamic action is obvious whether the wheel flat is new or old, and wheel flat could lead to mutational vertical force.

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2

Deng, Yaoji, Youqun Zhao, Han Xu, Fen Lin, and Qiuwei Wang. "Rigid-flexible coupling modelling and dynamic performance analysis of novel flexible road wheel." Proceedings of the Institution of Mechanical Engineers, Part K: Journal of Multi-body Dynamics 234, no. 1 (2019): 67–81. http://dx.doi.org/10.1177/1464419319874198.

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A novel flexible road wheel with hub-hinge-ring combined structure is introduced to improve the buffer damping performance and lightweight level of tracked vehicles. To balance computational efficiency and precision, an advanced rigid-flexible coupled model of the flexible road wheel is established using a hybrid modelling method combining finite element method and multi-body dynamics. The reliability and accuracy of the established rigid-flexible coupled model are verified by wheel static loading experiment. The modal flexible body of the elastic outer ring is developed by modified Craig-Bamp

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3

Li, Pengyang, Yunshuai Chen, Wei Li, Jian Sun, Jian Li, and Kai Wang. "Design of Longitudinal-Bending Coupled Horn of a Giant Magnetostriction Transducer." Actuators 11, no. 4 (2022): 110. http://dx.doi.org/10.3390/act11040110.

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This article presents a design method of Longitudinal-Bending Coupled Horn (L-BCH) of a giant magnetostrictive transducer utilized in spinning ultrasonic machining. The structural parameters are initially determined by the design theory of the horn and thick disc. Then, the effect of the structural parameters of the rotating wheel on the vibration characteristics of the L-BCH are explored by the model and harmonic response analysis through the finite element method. Through continuous modification of the geometrical parameters of the rotary wheel, the L-BCH meeting the requirements of a giant

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4

Layman, Christopher, and James Nelson. "Light rail wheel/rail noise radiation model using a coupled FE-BE method." INTER-NOISE and NOISE-CON Congress and Conference Proceedings 266, no. 1 (2023): 1096–105. http://dx.doi.org/10.3397/nc_2023_0137.

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This paper presents the development of a coupled finite element - boundary element model of rolling noise from a resilient light rail wheel on several types of tracks. The vibro-acoustic model utilizes a 3D elastic solid representation for both wheel and rail which are excited by linearized Hertzian interface loads. Estimates of the radiated sound power, radiation efficiencies and wayside noise levels are obtained and then scaled using a parallel impedance framework and a roughness profile. Results are compared to recently measured vehicle passby noise and track decay rates at Sound Transit in

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5

Liu, Xuqi, Zhenxing He, Yukui Wang, Lirong Yang, Haiyong Wang, and Long Cheng. "The Wheel Flat Identification Based on Variational Modal Decomposition—Envelope Spectrum Method of the Axlebox Acceleration." Applied Sciences 12, no. 14 (2022): 6837. http://dx.doi.org/10.3390/app12146837.

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The wheel flat can cause train and rail system infrastructure damage and endanger the running safety. To monitor the early wheel flat, it is urgent to carry out the theoretical basic research on the relationship between the vibration signal and the wheel flat. Moreover, to extract the characteristics of the wheel flat, an advanced and effective signal processing method need to be studied. A three-dimensional vehicle-track coupled dynamics model verified by field test is established based on the multi-body dynamics at first. The acceleration of the axlebox excited by the different wheel flat le

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Tan, Di, Yanshou Wu, Kun Yang, Zhichang Qin, and Chao Ma. "A Study on the Electromagnetic–Temperature Coupled Analysis Method for In-Wheel Motors." Applied Sciences 9, no. 20 (2019): 4206. http://dx.doi.org/10.3390/app9204206.

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As the core component of in-wheel motor-driven electric vehicles, the in-wheel motor (IWM) directly affects the driving/braking performance of each driving wheel and the driving performance of the vehicle. The IWM operation involves a coupling of multi-fields, including the electromagnetic, temperature, flow, and mechanical fields, which influence each other. It is necessary to study coupling analysis methods to obtain accurate and consistent results. In this paper, a 15 kW in-wheel motor is taken as the research object. Based on the finite element model of the IWM, the coupling factors betwee

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7

Zuo, Shuguang, Duoqiang Li, Yu Mao, and Wenzhe Deng. "Longitudinal vibration analysis and suppression of electric wheel system driven by in-wheel motor considering unbalanced magnetic pull." Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering 233, no. 11 (2018): 2729–45. http://dx.doi.org/10.1177/0954407018806118.

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With the blowout of electric vehicles recently, the key parts of the electric vehicles driven by in-wheel motors named the electric wheel system become the core of development research. The torque ripple of the in-wheel motor mainly results in the longitudinal dynamics of the electric wheel system. The excitation sources are first analyzed through the finite element method, including the torque ripple induced by the in-wheel motor and the unbalanced magnetic pull produced by the relative motion between the stator and rotor. The accuracy of the finite element model is verified by the back elect

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8

Amir, Muhammad, Asifa Ashraf, and Jamil Abbas Haider. "The Variational Iteration Method for a Pendulum with a Combined Translational and Rotational System." Acta Mechanica et Automatica 18, no. 1 (2024): 48–54. http://dx.doi.org/10.2478/ama-2024-0006.

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Abstract The dynamic analysis of complex mechanical systems often requires the application of advanced mathematical techniques. In this study, we present a variation iteration-based solution for a pendulum system coupled with a rolling wheel, forming a combined translational and rotational system. Furthermore, the Lagrange multiplier is calculated using the Elzaki transform. The system under investigation consists of a pendulum attached to a wheel that rolls without slipping on a horizontal surface. The coupled motion of the pendulum and the rolling wheel creates a complex system with both tra

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9

Sun, Wen Jing, Dao Gong, and Jin Song Zhou. "Study on Wheel-Rail Coupled Vibration of Metro with Co-Simulation of Finite Element Analysis and Multi-Body Dynamics Simulation." Applied Mechanics and Materials 752-753 (April 2015): 636–41. http://dx.doi.org/10.4028/www.scientific.net/amm.752-753.636.

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Based on the multi-body dynamics theory and modal-reduction analysis, finite element method and multi-body dynamics were combined to establish the flexible track model. The rigid-flexible coupled dynamics model can reflect the features of coupled vibration accurately. When the flexibility of the rail, damping and stiffness of support layers under the rail are taken into consideration, the whole track structure acted as a buffer while wheel and rail is interacting with each other. Compared with rigid track model, the wheel-rail vibration is less in the flexible track model. The proposed method

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10

Zhu, Zhihui, Wei Gong, Lidong Wang, Issam E. Harik, and Yu Bai. "A hybrid solution for studying vibrations of coupled train–track–bridge system." Advances in Structural Engineering 20, no. 11 (2017): 1699–711. http://dx.doi.org/10.1177/1369433217691775.

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This article develops a hybrid model to analyse the dynamic interactions between a train, tracks and a bridge. The model couples the train and track subsystems to form an integrated time-dependent subsystem through a vertically interacting wheel–rail model. In turn, this time-dependent subsystem is coupled with the bridge subsystem by enforcing the compatibility of forces at the contact points between the track and the bridge. A new hybrid solution algorithm is proposed which combines the strongly coupled method and the loosely coupled method to numerically solve the equation of motion of the

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11

Milošević, Miloš, Aleksandar Miltenović, Milan Banić, and Miša Tomić. "DETERMINATION OF RESIDUAL STRESS IN THE RAIL WHEEL DURING QUENCHING PROCESS BY FEM SIMULATION." Facta Universitatis, Series: Mechanical Engineering 15, no. 3 (2017): 413. http://dx.doi.org/10.22190/fume170206029m.

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Residual stresses of the rail wheels are influenced by heat treatment during the manufacturing process. The quenching process during the manufacturing results in the residual stresses within the rail wheel that may be dangerous for the rail wheel during its operation. Determination of the residual stress in the rail wheel is important for understanding the damage mechanisms and their influence on the proper work of rail wheels. This paper presents a method for determining the residual stresses in the rail wheel during the quenching process by using the directly coupled thermal-structural analy

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12

Gautam, Aishwarya, and Sheldon I. Green. "Computational fluid dynamics–discrete element method simulation of locomotive sanders." Proceedings of the Institution of Mechanical Engineers, Part F: Journal of Rail and Rapid Transit 235, no. 1 (2020): 12–21. http://dx.doi.org/10.1177/0954409720902897.

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Locomotive sanders are used to optimize the traction between the train wheels and the railhead by spraying sand into the interface. It has been previously shown that a large fraction of sand sprayed by the sanders does not make it through the wheel–rail nip, leading to sand wastage and thereby increasing the cost and refilling effort. In this study, pneumatic conveying of sand through the wheel–rail nip is numerically modeled through coupled computational fluid dynamics and discrete element method simulations. The gas phase, discrete phase, and coupled two-phase flows are separately validated

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13

Lei, He, Ruixiang Song, Yubin Wu, and Yanan Wu. "A prediction method for indoor vibration over metro depot throat area based on coupled interactions of wheel-rail." INTER-NOISE and NOISE-CON Congress and Conference Proceedings 265, no. 7 (2023): 527–35. http://dx.doi.org/10.3397/in_2022_0073.

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Environmental vibration pollution is the primary environmental problem faced by the superstructure of metro depots. The throat area is especially prone to high wheel-rail impact vibration due to multiple joints and turnouts, which may cause high annoyance to the residents in the superstructures both on the upper cover and surrounding areas. In this paper, based on the coupled dynamic analysis of wheel-turnout, a prediction method to evaluate the indoor vibration of over-track building is established. Firstly, subway turnout with variable sections on switch, connection part and frog and vehicle

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14

D’Souza, A. F., and W.-J. Tsung. "Influence of Wheel-Rail Profiles on the Hunting Vibrations of Rail Vehicle Trucks." Journal of Vibration and Acoustics 107, no. 2 (1985): 167–74. http://dx.doi.org/10.1115/1.3269240.

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The effect of several wheel and rail profiles on the hunting behavior of three-piece North American freight truck is investigated by the method of describing functions. After replacing the nonlinear terms by their equivalent describing functions, the differential equations of motion are converted to a set of coupled nonlinear algebraic equations which are then solved by the Newton-Raphson method. It is shown that the wearing of the rail profile has a significant adverse effect on the dynamic behavior. It greatly lowers the critical speed for the onset of hunting and raises the frequency, there

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15

Zhang, Yahui, Wei Wang, and Huajiang Ouyang. "Dynamic reliability evaluation of vehicle–track coupled systems considering the randomness of suspension and wheel–rail parameters." Proceedings of the Institution of Mechanical Engineers, Part O: Journal of Risk and Reliability 233, no. 6 (2019): 1106–21. http://dx.doi.org/10.1177/1748006x19863640.

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The ride quality and running safety of high-speed trains are directly influenced by uncertainties of some key parameters, such as the damping and stiffness coefficients of suspension systems, wheel–rail coefficient of friction and wheel–rail profiles. Dynamic reliability problems of vehicle–track coupled systems under the influence of the above random parameters are studied in this article. An efficient numerical method is presented by combining a prediction-based iterative solution technique with subset simulation method. The solution efficiency of deterministic responses is improved by means

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16

Peng, Gang, Zezao Lu, Jiaxi Peng, Dingxin He, Xinde Li, and Bin Hu. "Robust Tightly Coupled Pose Measurement Based on Multi-Sensor Fusion in Mobile Robot System." Sensors 21, no. 16 (2021): 5522. http://dx.doi.org/10.3390/s21165522.

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Currently, simultaneous localization and mapping (SLAM) is one of the main research topics in the robotics field. Visual-inertia SLAM, which consists of a camera and an inertial measurement unit (IMU), can significantly improve robustness and enable scale weak-visibility, whereas monocular visual SLAM is scale-invisible. For ground mobile robots, the introduction of a wheel speed sensor can solve the scale weak-visibility problem and improve robustness under abnormal conditions. In this paper, a multi-sensor fusion SLAM algorithm using monocular vision, inertia, and wheel speed measurements is

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17

Jung, Changbae, and Woojin Chung. "Calibration of Kinematic Parameters for Two Wheel Differential Mobile Robots by Using Experimental Heading Errors." International Journal of Advanced Robotic Systems 8, no. 5 (2011): 68. http://dx.doi.org/10.5772/50906.

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Odometry using incremental wheel encoder sensors provides the relative position of mobile robots. This relative position is fundamental information for pose estimation by various sensors for EKF Localization, Monte Carlo Localization etc. Odometry is also used as unique information for localization of environmental conditions when absolute measurement systems are not available. However, odometry suffers from the accumulation of kinematic modeling errors of the wheel as the robot's travel distance increases. Therefore, systematic odometry errors need to be calibrated. Principal systematic error

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18

Yang, Xinwen, Xiaoshan Liu, Shunhua Zhou, Xiaoyun Ma, Jiangang Shen, and Jingchao Zang. "Vertical Random Vibration Analysis of Track-Subgrade Coupled System in High Speed Railway with Pseudoexcitation Method." Shock and Vibration 2016 (2016): 1–12. http://dx.doi.org/10.1155/2016/7064297.

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In order to reduce the ground-borne vibration caused by wheel/rail interaction in the ballastless track of high speed railways, viscoelastic asphalt concrete materials are filled between the track and the subgrade to attenuate wheel/rail force. A high speed train-track-subgrade vertical coupled dynamic model is developed in the frequency domain. In this model, coupling effects between the vehicle and the track and between the track and the subgrade are considered. The full vehicle is represented by some rigid body models of one body, two bogies, and four wheelsets connected to each other with

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19

Lornage, D., E. Chatelet, and G. Jacquet-Richardet. "Effects of Wheel-Shaft-Fluid Coupling and Local Wheel Deformations on the Global Behavior of Shaft Lines." Journal of Engineering for Gas Turbines and Power 124, no. 4 (2002): 953–57. http://dx.doi.org/10.1115/1.1492830.

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Rotating parts of turbomachines are generally studied using different uncoupled approaches. For example, the dynamic behavior of shafts and wheels are considered independently and the influence of the surrounding fluid is often taken into account in an approximate way. These approaches, while often sufficiently accurate, are questionable when wheel-shaft coupling is observed or when fluid elements are strongly coupled with local structural deformations (leakage flow between wheel and casing, fluid bearings mounted on a thin-walled shaft, etc.). The approach proposed is a step toward a global m

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20

Song, Gang. "Time-Varying LQG Control for Vibration of Coupled Vehicle-Bridge System." Applied Mechanics and Materials 347-350 (August 2013): 541–47. http://dx.doi.org/10.4028/www.scientific.net/amm.347-350.541.

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Time-varying linear quadratic Gaussian (LQG) control for vibration of coupled vehicle-bridge system is studied. The vehicle is modeled as a moving mass model with three degrees of freedom, which consists of vehicle body, bogie and wheel. Active suspensions are adopted for the primary and secondary ones, and the control forces are produced by two actuators placed between the bogie and wheel, and between the vehicle body and the bogie, respectively. Vehicle-bridge coupling systems are time-dependent, which lead to the time-varying Riccati differential equation and the time-varying Kalman-Bucy fi

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21

Békési, Nándor, and Károly Váradi. "Contact Thermal Analysis and Wear Simulation of a Brake Block." Advances in Tribology 2013 (2013): 1–7. http://dx.doi.org/10.1155/2013/878274.

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The present paper describes an experimental test and a coupled contact-thermal-wear analysis of a railway wheel/brake block system through the braking process. During the test, the friction, the generated heat, and the wear were evaluated. It was found that the contact between the brake block and the wheel occurs in relatively small and slowly moving hot spots, caused by the wear and the thermal effects. A coupled simulation method was developed including numerical frictional contact, transient thermal and incremental wear calculations. In the 3D simulation, the effects of the friction, the th

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22

Xu, Zihang, Jianwei Yang, Dechen Yao, Jinhai Wang, and Minghui Wei. "An Adaptive Parameterized Domain Mapping Method and Its Application in Wheel–Rail Coupled Fault Diagnosis for Rail Vehicles." Sensors 23, no. 12 (2023): 5486. http://dx.doi.org/10.3390/s23125486.

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The rapid development of cities in recent years has increased the operational pressure of rail vehicles, and due to the characteristics of rail vehicles, including harsh operating environment, frequent starting and braking, resulting in rails and wheels being prone to rail corrugation, polygons, flat scars and other faults. These faults are coupled in actual operation, leading to the deterioration of the wheel–rail contact relationship and causing harm to driving safety. Hence, the accurate detection of wheel–rail coupled faults will improve the safety of rail vehicles’ operation. The dynamic

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23

Li, Zhe, Qin Ba, Yang Ou, et al. "Influence Mechanism of Electromechanical Parameters on Transient Dynamics of FWD-EVs: Part I: Co-Modeling of IWM and Vehicle System." Journal of Physics: Conference Series 2101, no. 1 (2021): 012012. http://dx.doi.org/10.1088/1742-6596/2101/1/012012.

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Abstract In-wheel motor (IWM), as an ideal power source of independent four-wheel drive electric vehicles, has been paid more and more attention due to its high-power density, low starting current, wide speed adjustment range, simple control system and robustness. However, the electromechanical issue is enlarged in both longitudinal and vertical because of in-wheel driven scheme. In this paper, the electromagnetic multi-field characteristic of IWM is investigated based on Fourier series method. The negative vibration coupling on vehicle dynamics is discussed by proposing a conjoint electromech

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Wang, Xianbin, and Shuming Shi. "Vehicle coupled bifurcation analysis of steering angle and driving torque." Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering 235, no. 7 (2021): 1864–75. http://dx.doi.org/10.1177/0954407020985405.

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The mechanism of vehicle dynamics steering bifurcation has almost been confirmed. But the present steering bifurcation mechanism cannot explain the bifurcation phenomena caused by the driving torque. As a result, the vehicle coupled bifurcation analysis of the steering angle and driving torque has not been studied. Based on the five degrees of freedom (5DOF) vehicle system dynamics model with driving torque involved, the vehicle dynamics equilibriums under different driving torque and driving mode were searched by a hybrid method in this paper. The hybrid method combined the real-coded Genetic

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25

Zhao, Guangwei, Nan Li, Yuxin Sun, and Changxin Chi. "A Parameter-Driven Methodology of Wheel Flat Modeling for Wheel–Rail Impact Dynamics." Applied Sciences 14, no. 13 (2024): 5956. http://dx.doi.org/10.3390/app14135956.

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A wheel flat is a typical wheel defect that significantly impacts the wheel–rail system, posing substantial challenges to vehicle operation safety. In the existing literature, the wheel flat plane model does not account for the contribution of the width direction to the impact response and thus cannot accurately reveal the wheel–rail contact state with a flat. This paper systematically proposes a three-dimensional analytical model that considers multiple worn stages and constructs a spatial complex surface reconstruction model for flats based on NURBS technology. A vehicle–track coupled dynami

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Wang, Pu, Qiantao Ma, Ji Liu, and Jingmang Xu. "Switch Rail Reduction Value Deviation’s Impact on Wheel–Rail Dynamic Interaction and Its Efficient Identification Method: A Numerical and Experimental Study." Applied Sciences 14, no. 24 (2024): 12047. https://doi.org/10.3390/app142412047.

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Railway turnout is a critical railway infrastructure that guides trains in switching tracks. Over time, uneven rail wear can lead to switch rail reduction value (SRRV) deviation, a typical structural defect that compromises turnout functionality and jeopardizes train operation safety. Current SRRV deviation detection methods rely primarily on inefficient manual inspections, making it difficult to ensure operational safety. To address this issue, the study carried out a comprehensive investigation combining numerical and experimental analyses. First, a rigid–flexible coupled dynamics model of a

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Liu, Mingchun, Yuanzhi Zhang, Juhua Huang, and Caizhi Zhang. "Optimization control for dynamic vibration absorbers and active suspensions of in-wheel-motor-driven electric vehicles." Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering 234, no. 9 (2020): 2377–92. http://dx.doi.org/10.1177/0954407020908667.

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This study addresses the challenges of ride comfort improvement and in-wheel-motor vibration suppression in in-wheel-motor-driven electric vehicles. First, a mathematical model of a quarter vehicle equipped with a dynamic vibration absorber and an active suspension is developed. Then, a two-stage optimization control method is proposed to improve the coupled dynamic vibration absorber–suspension performance. In the first stage, a linear quadratic regulator controller based on particle swarm optimization is designed for the dynamic vibration absorber to suppress the in-wheel-motor vibration, in

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Zhang, Changfan, Yuxuan Wang, and Jing He. "Suspension Parameter Estimation Method for Heavy-Duty Freight Trains Based on Deep Learning." Big Data and Cognitive Computing 8, no. 12 (2024): 181. https://doi.org/10.3390/bdcc8120181.

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The suspension parameters of heavy-duty freight trains can deviate from their initial design values due to material aging and performance degradation. While traditional multibody dynamics simulation models are usually designed for fixed working conditions, it is difficult for them to adequately analyze the safety status of the vehicle–line system in actual operation. To address this issue, this research provides a suspension parameter estimation technique based on CNN-GRU. Firstly, a prototype C80 train was utilized to build a simulation model for multibody dynamics. Secondly, six key suspensi

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Dewi Puspita Sari, Dendy Adanta, Imam Syofii, et al. "Feasibility Study of Small-Diameter Pico-Hydro Breastshot Waterwheel by Computational Method." CFD Letters 15, no. 11 (2023): 169–80. http://dx.doi.org/10.37934/cfdl.15.11.169180.

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Breastshot water wheels have very good simplicity, efficiency, and low head working range which is suitable for use in tropical rainforest villages in Indonesia. One of the weaknesses of the breastshot water wheel is that it has a very slow rotational speed which makes it need a high transmission ratio to be coupled with the generator. This study investigates the performance of a breastshot water wheel at smaller diameters and modifying the bucket inlet angle (36°, 49°, 71°, and 90°) by the computational fluid dynamics (CFD) method. In this case, the breastshot waterwheel's diameter ratio is e

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Guo, Bingbin, Zhixiang Luo, Bo Zhang, Yuqing Liu, and Zaigang Chen. "Dynamic Influence of Wheel Flat on Fatigue Life of the Traction Motor Bearing in Vibration Environment of a Locomotive." Energies 14, no. 18 (2021): 5810. http://dx.doi.org/10.3390/en14185810.

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Wheel flat can cause a large impact between the wheel and rail and excites a forced vibration in the locomotive and track structure systems. The working conditions and fatigue life of the motor bearings are significantly affected by the intensified wheel–rail interaction via the transmission path of the gear mesh. In this study, a fatigue life prediction method of the traction motor bearings in a locomotive is proposed. Based on the L−P theory or ISO 281 combined with the Miner linear damage theory and vehicle–track coupled dynamics, the irregular loads induced by the track random irregularity

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Prabhu, S., and B. K. Vinayagam. "Multiobjective Optimization of ELID Grinding Process Using Grey Relational Analysis Coupled with Principal Component Analysis." Advances in Mechanical Engineering 6 (January 1, 2014): 878510. http://dx.doi.org/10.1155/2014/878510.

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Carbon nanotube (CNT) mixed grinding wheel has been used in the electrolytic in-process dressing (ELID) grinding process to analyze the surface characteristics of AISI D2 Tool steel material. CNT grinding wheel is having an excellent thermal conductivity and good mechanical property which is used to improve the surface finish of the work piece. The multiobjective optimization of grey relational analysis coupled with principal component analysis has been used to optimize the process parameters of ELID grinding process. Based on the Taguchi design of experiments, an L9 orthogonal array table was

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Xiong, Shaoping, Gabriel Wilfong, and John Lumkes. "Components Sizing and Performance Analysis of Hydro-Mechanical Power Split Transmission Applied to a Wheel Loader." Energies 12, no. 9 (2019): 1613. http://dx.doi.org/10.3390/en12091613.

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The powertrain efficiency deeply affects the performance of off-road vehicles like wheel loaders in terms of fuel economy, load capability, smooth control, etc. The hydrostatic transmission (HST) systems have been widely adopted in off-road vehicles for providing large power density and continuous variable control, yet using relatively low efficiency hydraulic components. This paper presents a hydrostatic-mechanical power split transmission (PST) solution for a 10-ton wheel loader for improving the fuel economy of a wheel loader. A directly-engine-coupled HST solution for the same wheel loader

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Cai, Wubin, and Maoru Chi. "Study on Steady-State Responses of High-Speed Vehicle Using Infinite Long Track Model." Shock and Vibration 2020 (March 26, 2020): 1–17. http://dx.doi.org/10.1155/2020/6878252.

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The coupled vehicle/track dynamic model is formulated through integrating a high-speed rail vehicle model with a slab track model via the wheel/rail contact model. The sliding window method is improved using the least square criterion to simulate the vehicle travelling along the infinite long track. The steady-state responses of a high-speed vehicle induced by the discrete sleepers and slab segments are investigated through numerical simulation and analysis of the experimental results. Also the validity of the coupled vehicle/track model is examined through comparing the simulation results wit

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Wang, Kai, Yi Luo, Lifang Du, Zhongping Wu, and Han Wang. "Wheel Drive Driverless Vehicle Handling and Stability Control Based on Multi-Directional Motion Coupling." Electronics 13, no. 14 (2024): 2744. http://dx.doi.org/10.3390/electronics13142744.

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To fully unleash the performance potential of the Wheel Drive Driverless Vehicle (WDDV) and enhance its handling stability across a wide range of extreme operating conditions, this paper proposes a novel approach for designing a multi-directional motion coupling control system. Firstly, an analysis of the unmanned driving modes of the WDDV is conducted, followed by the establishment of a method for defining the control target parameter set for handling stability. Subsequently, a coupled dynamic model that considers the wheel drive counter force is developed. Building this model, a method for e

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Liu, Fu-Shan, Zhi-Ping Zeng, Wei-Dong Wang, and Abdulmumin Ahmed Shuaibu. "Stochastic Analysis of Nonlinear Vehicle-Track Coupled Dynamic System and Its Application in Vehicle Operation Safety Evaluation." Shock and Vibration 2019 (July 2, 2019): 1–23. http://dx.doi.org/10.1155/2019/3236093.

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This paper presents a vehicle operation safety evaluation model; to this end, a nonlinear vehicle-track coupled dynamic system stochastic analysis model under random irregularity excitations based on probability density evolution method was developed. The nonlinear coupled vehicle-track dynamic system is used to accurately describe the wheel-rail contact state. The stochastic function-spectral representation is used to simulate the random track irregularity in the time domain for the first time; consequently, the frequency components in the irregularity are preserved and random variables are r

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Li, H. X., A. H. Zhu, C. C. Ma, P. W. Sun, J. W. Yang, and K. Q. Zhang. "Influence of Wheel Profile Wear Coupled with Wheel Diameter Difference on the Dynamic Performance of Subway Vehicles." Shock and Vibration 2021 (June 10, 2021): 1–15. http://dx.doi.org/10.1155/2021/6694561.

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In view of the coexistence of wheel profile wear (WPW) and wheel diameter difference (WDD) on an actual subway line, a dynamic analysis method based on coupling between WPW and equivalent in-phase WDD was proposed. Based on the measurements from a subway vehicle in operation on this line, dynamics modeling and calculations were performed for a single carriage of this vehicle. Later, the interaction between the effects of WPW and equivalent in-phase WDD on the vehicle dynamic performance was analyzed, and the dynamic response in the presence of coupled damage was compared between the outer and

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Chang, Chao, Liang Ling, Zhaoling Han, Kaiyun Wang, and Wanming Zhai. "High-Speed Train-Track-Bridge Dynamic Interaction considering Wheel-Rail Contact Nonlinearity due to Wheel Hollow Wear." Shock and Vibration 2019 (October 31, 2019): 1–18. http://dx.doi.org/10.1155/2019/5874678.

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Wheel hollow wear is a common form of wheel-surface damage in high-speed trains, which is of great concern and a potential threat to the service performance and safety of the high-speed railway system. At the same time, rail corridors in high-speed railways are extensively straightened through the addition of bridges. However, only few studies paid attention to the influence of wheel-profile wear on the train-track-bridge dynamic interaction. This paper reports a study of the high-speed train-track-bridge dynamic interactions under new and hollow worn wheel profiles. A nonlinear rigid-flexible

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Viet Linh Le, Nguyen, Tri Hieu Le, Thi Minh Hao Dong, Van Vang Le, and Dinh Tung. "AUGMENTATION OF SOLAR WATER DISTILLER PERFORMANCE WITH PV/T." WATER CONSERVATION & MANAGEMENT 5, no. 1 (2020): 46–52. http://dx.doi.org/10.26480/wcm.01.2021.46.52.

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Recently, due to global warming and urbanization, there are many major cities that may face the challenge of day zero next decades. Obviously, water is an indispensable component for maintaining life on the earth. Although portable water is required of the hour, the quantity of available freshwater is impacted significantly by sea-level rise and pollution from industrialization. As a consequence of the global water crisis, different methods for clean water production from brackish water have been studied and developed in practice, however, the solar distillation of water is the most economical

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Gao, Run, Qixin He, and Qibo Feng. "Railway Wheel Flat Detection System Based on a Parallelogram Mechanism." Sensors 19, no. 16 (2019): 3614. http://dx.doi.org/10.3390/s19163614.

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Wheel flats are a key fault in railway systems, which can bring great harm to vehicle operation safety. At present, most wheel flat detection methods use qualitative detection and do not meet practical demands. In this paper, we used a railway wheel flat measurement method based on a parallelogram mechanism to detect wheel flats dynamically and quantitatively. Based on our experiments, we found that system performance was influenced by the train speed. When the train speed was higher than a certain threshold, the wheel impact force would cause vibration of the measuring mechanism and affect th

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Rahmati-Alaei, Ahmad, Majid Sharavi, and Masoud Samadian Zakaria. "Development of a coupled numerical model for the interaction between transient fluid slosh and tank wagon vibration." Proceedings of the Institution of Mechanical Engineers, Part K: Journal of Multi-body Dynamics 233, no. 3 (2018): 568–82. http://dx.doi.org/10.1177/1464419318809616.

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In this paper, a coupled model is developed to evaluate the effect of transient fluid slosh on the railway tank wagon dynamic vice versa. This model has computational complexity in solving the Navier–Stokes equations and nonlinear differential equations of tank wagon vibration with nonlinear wheel–rail contact. The coupled model can be used as an effective and robust tool compared to simplified models for assessing the stability of tank wagon. The transient fluid slosh model is analysed using the computational fluid dynamic method combined with the volume of fluid technique. The tank wagon dyn

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Liu, Ang, Jianguo Wang, Shiwei Lin, and Xiaoying Kong. "A Dynamic UKF-Based UWB/Wheel Odometry Tightly Coupled Approach for Indoor Positioning." Electronics 13, no. 8 (2024): 1518. http://dx.doi.org/10.3390/electronics13081518.

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The centimetre-level accuracy of Ultra-wideband (UWB) has attracted significant attention in indoor positioning. However, the precision of UWB positioning is severely compromised by non-line-of-sight (NLOS) conditions that arise from complex indoor environments. On the other hand, odometry is widely applicable to wheeled robots due to its reliable short-term accuracy and high sampling frequency, but it suffers from long-term drift. This paper proposes a tightly coupled fusion method with a Dynamic Unscented Kalman Filter (DUKF), which utilises odometry to identify and mitigate NLOS effects on

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Farrow, Patrick, and Kevin Rowland. "Rat Running Wheel Behavior Reflects Inflammatory, Orofacial Pain." Open Pain Journal 10, no. 1 (2017): 37–43. http://dx.doi.org/10.2174/1876386301710010037.

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Background: Our objective was to establish a novel, unbiased metric of inflammatory, orofacial pain. Method: Rats were placed individually into cages equipped with running wheels, and allowed an acclimation period of 17 days. Diurnal and nocturnal voluntary running behaviors were recorded. After day 17, rats were deeply anesthetized and divided into mustard oil, vehicle (mineral oil) and drug (ibuprofen) groups. Injections of mustard oil or mineral oil were made into the vestibule superior to the maxillary molar. Running wheel behavior was recorded for three days following the procedure. Resul

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Tran, Minh Thi, Kok Keng Ang, and Van Hai Luong. "Multiple-Railcar High-Speed Train Subject to Braking." International Journal of Structural Stability and Dynamics 17, no. 07 (2017): 1750071. http://dx.doi.org/10.1142/s0219455417500717.

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The dynamic response of a high-speed multiple-railcar train experiencing deceleration under braking condition over a straight track is investigated using the moving element method. Possible sliding of train wheels over the rails is accounted for. The train is assumed to comprise a locomotive as the leading railcar and several passenger railcars connected to each other through train couplers. Each railcar is modeled as a 15-DOF system of interconnected car body, two bogies and four wheels. The rail is modeled as an Euler–Bernoulli beam resting on a two-parameter elastic damped foundation. The t

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Zhang, J., Q. Gao, S. J. Tan, and W. X. Zhong. "A precise integration method for solving coupled vehicle–track dynamics with nonlinear wheel–rail contact." Journal of Sound and Vibration 331, no. 21 (2012): 4763–73. http://dx.doi.org/10.1016/j.jsv.2012.05.033.

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Wang, Zhiqiang, and Zhenyu Lei. "Analysis of Rail Corrugation Characteristics on High-Speed Rail Based on Transient Finite Element Method." International Journal of Acoustics and Vibration 26, no. 3 (2021): 231–39. http://dx.doi.org/10.20855/ijav.2021.26.31778.

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By using the transient finite element method, a three-dimensional wheelset-track coupled rolling contact model for high-speed rail is established, and the rationality and effectiveness of the model are verified by field measurements. Next, the wheel-rail contact stress states and relative slip characteristics are calculated and analyzed to reveal the cause of inner rail corrugation. Then, the vertical vibration acceleration of the rail/wheel is taken as the output variable to study the dynamic responses of the wheelset-track system. Finally, the parameter sensitivity analysis is carried out. T

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Lin, Yu-Heng, Ming-Wei Liu, and Pei-Chun Lin. "Development of a Grinding Tool with Contact-Force Control Capability." Electronics 11, no. 5 (2022): 685. http://dx.doi.org/10.3390/electronics11050685.

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The grinding normal force is one of the main factors that affect grinding quality. We report on the development of a compact grinding tool which not only can rotate the grind wheel but also can actively control the wheel in the fore/aft direction to modulate the contact force. The two motion degrees of freedom are coupled in the sense of mechanism yet their motions are independent. The designed grinding tool was modeled and its parameters were systemically identified. A repetitive controller was designed to suppress periodic force variation, which was mainly caused by the rotational motion of

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Daogao, Wei, Jiang Tong, Chen Changhe, Jiang Yibin, Pan Ning, and Pan Zhijie. "Hopf bifurcation character of an interactive vehicle–road shimmy system under bisectional road conditions." Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering 231, no. 3 (2016): 405–17. http://dx.doi.org/10.1177/0954407016640874.

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The adhesion coefficients of a bisectional road have significant coupled influences on the shimmy characteristics of the front wheels of a vehicle. A four-degree-of-freedom model for a representative sport utility vehicle was established. This model considered the adhesion coefficients of a bisectional road and the friction of the steering system of the suspension. The existence and stability of the system’s limit cycles were qualitatively determined using the Hopf bifurcation theorem and the centre manifold theory based on the model. The influences of the adhesion coefficients on the Hopf bif

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Liu, Guang Fu, and Wei Gong Zhang. "Research on Nonlinear Coupling Analysis Based on Polynomial Model." Advanced Materials Research 219-220 (March 2011): 1643–46. http://dx.doi.org/10.4028/www.scientific.net/amr.219-220.1643.

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For a multi-dimension force transducer, the mutual coupling between any two force transducers is unavoidable, and normally, the coupling characteristic is nonlinear. But the nonlinear coupled transducers are often treated as linear coupled ones since the difficulty of nonlinear decoupling. The 6-axis wheel force transducer (WFT), as the key instrument of vehicle roadway test system, the precision of which is influenced badly by the mutual coupling. The linear coupling analysis and decoupling method was introduced, on the basis of which, the polynomial nonlinear coupling model was derived, and

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Huang, Chunlin, and Xiaoan Zhang. "Research on wheel-rail noise in rail corrugation road of urban rail transit." E3S Web of Conferences 512 (2024): 03025. http://dx.doi.org/10.1051/e3sconf/202451203025.

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As an efficient, fast, green and environmentally friendly means of transportation, subway vehicles account for the largest proportion of urban rail transit, and in large and medium-sized cities, the construction of subway is still in rapid development, but with the subway noise radiation problem, subway noise plagued by passengers, related operators and residents along the subway. In this study, the finite element analysis software ABAQUS is used to establish the coupled dynamics model of subway B-type vehicle-rail, and the acoustic radiation characteristics of wheels and rails are calculated

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Ur Rehman, Mubeen, Raj Jiten Machchhar, and Alessandro Bertoni. "Bridging simulation granularity in system-of-systems: conjunct application of discrete element method and discrete event simulations in construction equipment design." Proceedings of the Design Society 4 (May 2024): 2705–14. http://dx.doi.org/10.1017/pds.2024.273.

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AbstractThe paper addresses a critical challenge in System-of-Systems (SoS) simulations arising from the different granularity levels in SoS simulations, integrating non-coupled Discrete Element Method results into SoS-level Discrete Event Simulations using surrogate modeling. Illustrated with a wheel loader bucket use-case in mining, it enhances early design decision-making and lays the groundwork for improving SoS simulations in construction equipment design. This paves the way for broader research and application across diverse engineering design domains.

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