基于非线性有限元算法的空气弹簧横向动态刚度研究

戚壮; 李芾; 丁军君; 黄运华; 虞大联

doi:10.13433/j.cnki.1003-8728.2015.1011

基于非线性有限元算法的空气弹簧横向动态刚度研究

doi: 10.13433/j.cnki.1003-8728.2015.1011

1.
西南交通大学机械工程学院, 成都 610031;
2.
南车青岛四方股份国家工程实验室, 青岛 266111

基金项目:

国家自然科学基金(51305359)项目

详细信息

作者简介:
戚壮(1988-),博士研究生,研究方向为高速列车空气弹簧与动力学分析,qizhuang@my.swjtu.edu.cn

通讯作者:
李芾,教授,博士,lifu@home.swjtu.edu.cn

计量
- 文章访问数: 252
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- PDF下载量: 10
- 被引次数: 0
出版历程
- 收稿日期: 2013-12-17
- 刊出日期: 2015-10-05

Study on Horizontal Dynamic Stiffness of Air Spring Based on Nonlinear Finite Element Method

1.
School of Mechanical Engineering, Southwest Jiaotong University, Chengdu 610031, China;
2.
NEL for High Speed Train, CSR Qingdao Sifang Co. Ltd., Qingdao 266111, China

摘要

摘要: 基于非线性有限元算法,建立了轨道车辆空气弹簧的横向刚度计算模型,其中考虑了橡胶特性、帘线层布置、流固耦合及裙板接触等非线性因素。计算结果表明:在研究空气弹簧横向特性时,可以忽略附加空气室与节流孔的作用,但不能忽略应急橡胶弹簧的影响。将空气弹簧的横向反力计算结果与试验结果进行对比,发现两者误差在6%以内,验证了模型的正确性。通过对空气弹簧横向动态刚度的研究发现:空气弹簧横向动态刚度对横向激振的频率与振幅是不敏感的,但对振动的平衡位置十分敏感;空气弹簧的横向动态刚度随平衡位置的增加而增加,且平衡位置越大横向动态刚度的增速越大。这种空气弹簧横向动态刚度的非线性特性,有利于提高轨道车辆的横向平稳性与稳定性。
- 空气弹簧 /
- 横向动态刚度 /
- 非线性有限元 /
- 轨道车辆
Abstract: Based on the nonlinear finite element method, a horizontal stiffness calculation model of track vehicle's air spring was constructed, in which the characters of rubber, the ply disposition, the fluid-solid coupling and the contact of top plate apron were taken into consideration. The calculation results show that; the function of the auxiliary chamber and the orifice can be neglected; but the effect of the auxiliary spring cannot be neglected. With the comparison of the horizontal reaction force between the calculation and the experiment, the relative error is within 6% which verified the model. By the study on the horizontal dynamic stiffness of air spring, it was found that:the air spring's horizontal stiffness is insensitive to the frequency and amplitude of the excitation; but it is sensitive to the balance position of vibration. The air spring's horizontal stiffness increases with the increment of the balance position and the increase rate becomes higher when the balance position becomes larger. This kind of nonlinear character of the air spring's horizontal stiffness is benefit for improving the horizontal ride comfort and stability of track vehicle.
- ABAQUS /
- air spring /
- bogies(railroad rolling stock) /
- calculations

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参考文献(14)

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