Results 1 to 10 of about 805,461 (159)

An abnormal carbody swaying of intercity EMU train caused by low wheel–rail equivalent conicity and damping force unloading of yaw damper

Railway Engineering Science, 2023
Low-frequency carbody swaying phenomenon often occurs to railway vehicles due to hunting instability, which seriously deteriorates the ride comfort of passengers.
Yixiao Li, Maoru Chi, Zhaotuan Guo, Shulin Liang   +3 more
doaj   +3 more sources

Calculated estimation of railway wheels equivalent conicity influence on critical speed of railway passenger car

MATEC Web of Conferences, 2018
The article presents the results of determining the equivalent conicity characterizing the geometric interaction of wheels and rails on 1520 mm track.
Gerlici Juraj, Domin Rostyslav, Cherniak Ganna, Lack Tomáš   +3 more
doaj   +4 more sources

Estimation of the equivalent conicity of wheel treads with worn rolling surface

Вестник Научно-исследовательского института железнодорожного транспорта, 2018
The safety of freight trains motion that have empty cars in their composition is in many cases determined by the stability of the motion of these cars.
A. Ya. Kogan
doaj   +2 more sources

Research on the mechanism and measures of riding comfort deterioration in a low floor tram [PDF]

Scientific Reports
With the global widespread preference for low-floor trams, the expectation for tram riding comfort has been increasingly heightened. This paper identifies an abnormal riding comfort problem (ARCP, characterized by an excessive and W-shaped distribution ...
Huansheng Wang, Maoru Chi, Wubin Cai, Yuchen Xie, Jianfeng Sun, Liangcheng Dai   +5 more
doaj   +2 more sources

Equivalent conicity as a parameter for assessing track condition

Pojazdy Szynowe
Safety is at the heart of rail transport. Accurate assessment of the technical condition of rail infrastructure is the basis for rail transport safety.
Julian Kominowski, Marcin Słowiński
doaj   +3 more sources

Study of Resonance between Bogie Hunting and Carbody Mode via Field Measurements and Dynamic Simulation [PDF]

Sensors
By addressing the phenomenon of carbody abnormal vibrations in the field, the acceleration of the carbody and bogie was measured using accelerometers, and the diamond mode of the carbody was identified.
Sheng Yang, Fansong Li, Pingbo Wu, Jijun Gong   +3 more
doaj   +2 more sources

Typical wheel–rail profile change rules and matching characteristics of high speed railway in China [PDF]

Railway Sciences, 2022
Purpose – In order to systematically grasp the changes and matching characteristics of wheel and rail profiles of high speed railway (HSR) in China, 172 rail profile measurement points and 384 wheels of 6 high-speed electric motive unites (EMUs) were ...
Maorui Hou, Fengshou Liu, Xiaoyi Hu
doaj   +1 more source

Coupling Effects of Yaw Damper and Wheel-Rail Contact on Ride Quality of Railway Vehicle

Shock and Vibration, 2021
The ride quality of the railway vehicle is not only affected by the wheel-rail contact geometry but also by the yaw damper. In order to explore this variation law, an equivalent parameter model of the yaw damper was established based on the internal ...
Hai Zhang, Xiangrui Ran, Xiugang Wang, Fengtao Lin, Qi Jiang   +4 more
doaj   +1 more source

Calculation of the Equivalent Conicity Function of the Railway Wheelset Tread Profile at the Delta R Function with a Negative

Communications, 2004
The rail-wheel interface is fundamental to explain the dynamic running behaviour of a railway vehicle. It must therefore be understood and among the parameters by which it is characterised, the one called "equivalent conicity" plays an essential role ...
Juraj Gerlici, Tomas Lack, Marta Kadorova   +2 more
doaj   +1 more source

Research on Bogie Frame Lateral Instability of High-Speed Railway Vehicle

Shock and Vibration, 2018
In order to find out the reason for the bogie frame instability alarm in the high-speed railway vehicle, the influence of wheel tread profile of the unstable vehicle was investigated.
Chen Wang, Shihui Luo, Ziqiang Xu, Chang Gao, Weihua Ma   +4 more
doaj   +1 more source