车间减振器对动力集中型动车组横向低频晃动的影响分析

doi:10.3901/JME.260124

摘要/Abstract

摘要： 针对动力集中型动车组出现的动力车横向低频晃动问题，基于实车参数建立列车系统动力学模型，复现动力车的异常晃动现象；在此基础上，从车间减振器方面提出抑制动力车横向晃动的控制措施；最后，以改善动力车横向动力学性能为优化目标，对车间减振器参数与关键转向架悬挂参数开展正交优化。结果表明，加装较大动刚度、动阻尼特性的车间纵向减振器或车间横向减振器均可抑制动车组的横向低频晃动；采用正交优化后的加装车间纵向减振器、车间横向减振器优化匹配方案均使车体横向振动加速度最大值显著减小，车体横向平稳性指标分别降低34.19%、39.74%。研究成果可为解决动力集中型动车组动力车的横向低频异常晃动问题提供理论依据。

关键词: 动力集中型动车组, 横向低频晃动, 车间减振器, 正交优化

Abstract: The low-frequency lateral swaying of the power car of power centralized EMUs has a detrimental impact on the lateral ride comfort. In response to this phenomenon, a multiple rigid body dynamic model of power centralized EMUs is established and the abnormal swaying phenomenon is reproduced. Then a further proposal is made for the installation of an inter-vehicle damper in order to improve the lateral dynamic performance of the power car. It can be observed that both the inter-vehicle longitudinal damper and the inter-vehicle lateral damper, with a reasonable degree of stiffness and damping, can effectively eliminate the low-frequency lateral swaying. Finally, the process of orthogonal optimization is carried out on the key parameters of the inter-vehicle damper and bogie suspension in order to enhance the lateral dynamic performance. The results demonstrate that the maximum value of the carbody lateral vibration acceleration is significantly reduced, with the lateral Sperling index of the carbody respectively decreasing by 34.19% and 39.74% when the optimized matching scheme of inter-vehicle longitudinal damper or inter-vehicle lateral damper is implemented. The outcomes can offer a theoretical foundation for suppressing the low-frequency lateral swaying problem of power car of power centralized EMUs.

Key words: power centralized EMUs, low-frequency lateral swaying, inter-vehicle damper, orthogonal optimization

中图分类号:

U270

蒋忱忱, 吕凯凯, 张志超, 寸冬冬, 凌亮, 王开云. 车间减振器对动力集中型动车组横向低频晃动的影响分析[J]. 机械工程学报, 2026, 62(4): 271-282.

JIANG Chenchen, Lü Kaikai, ZHANG Zhichao, CUN Dongdong, LING Liang, WANG Kaiyun. Influence of Inter-vehicle Damper on the Lateral Low-frequency Swaying of Power Centralized EMUs[J]. Journal of Mechanical Engineering, 2026, 62(4): 271-282.

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