Study on longitudinal force simulation of heavy-haul train

被引：30
|
作者：
Chang, Chongyi [1 ,2 ]
Guo, Gang [1 ,2 ]
Wang, Junbiao [1 ,2 ]
Ma, Yingming [1 ,2 ]
机构：
[1] China Acad Railway Sci, Railway Sci & Technol Res & Dev Ctr, Beijing, Peoples R China
[2] China Acad Railway Sci, High Speed Wheel Rail Syst Lab, Beijing, Peoples R China
来源：
VEHICLE SYSTEM DYNAMICS | 2017年 / 55卷 / 04期
关键词：
Non-linear oscillation; Newmark-beta method; equilibrium iteration method; draft gear; hysteretic characteristic; DRAFT-GEAR; DYNAMICS; INTEGRATION;
D O I：
10.1080/00423114.2016.1269183
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
The longitudinal dynamics model of heavy-haul trains and air brake model used in the longitudinal train dynamics (LTDs) are established. The dry friction damping hysteretic characteristic of steel friction draft gears is simulated by the equation which describes the suspension forces in truck leaf springs. The model of draft gears introduces dynamic loading force, viscous friction of steel friction and the damping force. Consequently, the numerical model of the draft gears is brought forward. The equation of LTDs is strongly non-linear. In order to solve the response of the strongly non-linear system, the high-precision and equilibrium iteration method based on the Newmark-beta method is presented and numerical analysis is made. Longitudinal dynamic forces of the 20,000 tonnes heavy-haul train are tested, and models and solution method provided are verified by the test results.
引用
收藏
页码：571 / 582
页数：12
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