高速动车组蛇行失稳频率研究
Research on Hunting Instability Frequency of High-speed EMU
张博宁 1王勇1
作者信息
- 1. 西南交通大学 牵引动力国家重点实验室,四川 成都 610031
- 折叠
摘要
以时速 400 km以上的某型高速动车组作为分析对象,基于Simpack动力学软件建立两种高速动车组动力学模型,在不同的等效锥度、一系定位节点刚度、抗蛇行减振器阻尼下进行仿真计算,分析其对高速动车组蛇行失稳频率的影响规律.两种高速动车组模型的研究结果表明:随着等效锥度的增大,其蛇行失稳频率也增大;随着一系定位节点刚度的增大,其蛇行失稳频率降低;随着抗蛇行减振器阻尼的增大,其蛇行失稳频率升高;时速 400 km以上的轴箱内置型高速动车组出现了 10～11 Hz的高频蛇行.
Abstract
Takes the high-speed EMU with a speed of more than 400 km as the analysis object to establish two kinds of high-speed EMU dynamic models based on Simpack dynamics software,carries out simulation calculation under different equivalent conicity,primary positioning stiffness and anti-hunting damper damping,and analyzes its influence law on the hunting instability frequency of high-speed EMU.The results show that the hunting instability frequency of the two high-speed EMU models increases with the increase of the equivalent conicity;the hunting instability frequency of the two high-speed EMU models decreases along with the increase of the stiffness of the primary positioning;the hunting instability frequency of the two high-speed EMU models increases with the increase of anti-hunting damper damping;and high-speed EMU with a speed of more than 400 km have a high frequency hunting of 10～11 Hz.
关键词
400/km/h/高速动车组/Simpack/等效锥度/一系定位节点刚度/抗蛇行减振器阻尼/蛇行失稳频率Key words
400 km/h/high-speed EMU/Simpack/equivalent conicity/primary positioning stiffness/anti-hunting damper/hunting instability frequency引用本文复制引用
出版年
2024
国家科技期刊平台
NSTL
万方数据