The Motor Active Flexible Suspension and its Dynamic Effect on the High-speed Train Bogie
The Motor Active Flexible Suspension and its Dynamic Effect on the High-speed Train Bogie
复制标题
高速列车转向架电机主动柔性悬架及其动力效应
DOI:
10.1115/1.4038389
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发表时间:
2018-06
期刊:
影响因子:
--
通讯作者:
Kang Chen
中科院分区:
文献类型:
--
作者:
Yuan Yao;Yapeng Yan;Zhike Hu;Kang Chen
We put forward the motor active flexible suspension and investigate its dynamic effects on the high-speed train bogie. The linear and nonlinear hunting stability are analyzed using a simplified eight degrees-of-freedom bogie dynamics with partial state feedback control. The active control can improve the function of dynamic vibration absorber of the motor flexible suspension in a wide frequency range, thus increasing the hunting stability of the bogie at high speed. Three different feedback state configurations are compared and the corresponding optimal motor suspension parameters are analyzed with the multi-objective optimal method. In addition, the existence of the time delay in the control system and its impact on the bogie hunting stability are also investigated. The results show that the three control cases can effectively improve the system stability, and the optimal motor suspension parameters in different cases are different. The direct state feedback control can reduce corresponding feed state's vibration amplitude. Suppressing the frame's vibration can significantly improve the running stability of bogie. However, suppressing the motor's displacement and velocity feedback are equivalent to increasing the motor lateral natural vibration frequency and damping, separately. The time delay over 10 ms in control system reduces significantly the system stability. At last, the effect of preset value for getting control gains on the system linear and nonlinear critical speed is studied.
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DOI:
10.1177/0954409715605138
发表时间:
2016-08
影响因子:
2
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期刊:
Journal of Engineering Mechanics-asce
影响因子:
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期刊:
Journal of Vibration and Acoustics
影响因子:
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2005
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