Results 31 to 40 of about 355 (181)
Creep slope estimation for assessing adhesion in the wheel/rail contact
IET Intelligent Transport Systems, Volume 18, Issue 10, Page 1931-1942, October 2024.Real‐time monitoring of wheel‐rail friction coefficient in railway networks are not available and it can mitigate significant operational and maintenance related to low adhesion events. This article presents a friction coefficient estimator based on on‐board sensor measurements from typical rail vehicles during normal running conditions.
Peter Hubbard +3 more
wiley +1 more source
Post Processing Analysis of Dynamic Calculation Results of a Special Vehicle Based on SIMPACK Model
机车电传动, 2019 4 kinds of filtering methods commonly used in SIMPACK post processing were discussed. Taking the dynamic indexes calculation under curves condition as an example, the calculated results obtained by the 4 filtering methods were compared with those of the ...
Jianjun ZOU, Zhihui HUANG
doaj
Research on AH-model Vehicle Clearance Based on Dynamics Simulation Calculation
Chengshi guidao jiaotong yanjiuObjective The AH-model vehicle combines the characteristics of A and B type model vehicles. Due to its structural differences from conventional metro vehicles, there are currently no corresponding standards on vehicle clearance in China at present, thus ...
MEN Yonglin, ZHANG Yunhang, XU Xu
doaj +1 more source
The Impact of Wheel Flat on Traction Drive System of Electric Locomotives
IET Electrical Systems in Transportation, Volume 2024, Issue 1, 2024.Wheel flat can seriously affect the wheel–rail contact performance and cause impact vibrations, which significantly threaten the safe operation of railway vehicles. It is crucial to accurately assess the effects of wheel flats on the wheel–rail contact performance and the vibration impact on the traction drive system.
Like Pan +6 more
wiley +1 more source
Damping Coefficient Optimization for the Articulated System of Virtual Track Trains
Shock and Vibration, Volume 2024, Issue 1, 2024.Virtual track trains are a new type of rail transportation because the multisection formation structure leads to more degrees of freedom of the vehicle, which may cause unstable phenomena, such as tailing, cross‐swing, and folding, affecting the stability and ride comfort of the vehicle driving.
Chao Li +6 more
wiley +1 more source
Influence of Electromagnetic Force on Curve PassingDynamic Performance of LIM Metro Vehicle
机车电传动, 2016 Three-dimensional electromagnetic forces (longitudinal, vertical and lateral electromagnetic force) produced between theprimary and secondary of linear induction motor (LIM), may influence the dynamic performance of LIM vehicle.
LIU Gaokun
doaj
Development of a numerical analysis method for estimating wheel-flat shapes in railway vehicles
Nihon Kikai Gakkai ronbunshuHerein, a method for evaluating the wheel-flat shape generated during braking in railway vehicles is proposed. Prior studies have not clarified the generation mechanism of wheel-flats, preventing a quantitative estimation of their shape.
Daisuke YAMAMOTO
doaj +1 more source
Shock and Vibration, Volume 2024, Issue 1, 2024.When high‐speed trains operate under braking conditions, the wheel‐rail interaction increases significantly, which can lead to more serious wear problems. To analyze the evolution of wheel wear and the dynamic characteristics of wheel‐rail under braking conditions, this paper first carries out long‐term monitoring of the service state of wheel‐rail ...
Rui Song +6 more
wiley +1 more source
Study on the Impact Coefficient of Tied Arch Bridge Shock Effect Based on Vehicle-Bridge Coupling
Applied SciencesIn order to study the impact on the shock effect when a high-speed train passes over a concrete-filled steel tube (CFST) tied-arch bridge, a dynamic load test was carried out in the background of the Qinjiang River Bridge in Qinzhou, Guangxi Province, to
Yipu Peng +4 more
doaj +1 more source
Performance of Real‐Time Hybrid Simulation for Hunting Dampers of High‐Speed Trains
Structural Control and Health Monitoring, Volume 2024, Issue 1, 2024.One favorable solution to the issue of hunting instability of high‐speed trains is to install hunting dampers. However, the nonlinearity of dampers and their interaction with a train present significant challenges in accurately analyzing the dynamic behaviors of both dampers and trains.
Zhen Wang +6 more
wiley +1 more source