基于刚柔耦合的综合传动汇流行星排断齿故障动态特性仿真研究

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摘要针对综合传动装置中的汇流行星排，为了掌握实际工况下断齿故障对其动态特性的影响，基于多柔性体动力学（MFBD）技术，在RecurDyn中建立了刚柔耦合多体动力学仿真模型，得到了行星齿轮的动态应力分布云图，确定了危险点的位置，并对考虑柔性变形前后的动态响应特征进行了对比分析；在此基础上建立了汇流行星排的断齿故障仿真模型，并利用其接触力及加速度信号的对比分析进行时频域上的故障特征提取，研究结果可为汇流行星排的故障诊断、寿命预测等提供一定的依据。

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关键词 ：刚柔耦合, 汇流行星排, 动力学仿真, RecurDyn, 特征提取

Abstract：In order to master the effects of broken tooth fault on dynamic characteristics of a conflux planetary gear in power shift steering transmission, a rigid-flexible coupled simulation model was established in RecurDyn environment based on MFBD (multi-flexible body dynamics). Through simulation, the dynamic stress distribution nephogram of the planetary gear system was obtained to determine dangerous points’ locations, the dynamic response characteristics of the conflux planetary gear system before and after considering flexible deformation were analyzed contrastively. Then the simulation model of broken tooth fault of the conflux planetary gear was built, fault feature extraction in time-frequency domain was performed using comparative analysis of its contact force and acceleration signals. The study results provided a basis for fault diagnosis and life prediction of conflux planetary gear systems.

Key words： rigid-flexible coupled conflux planetary gear dynamic simulation RecurDyn feature extraction

收稿日期: 2016-08-22 出版日期: 2018-02-28

引用本文:

郝驰宇1,2 冯广斌2 闫鹏程2 孙华刚2. 基于刚柔耦合的综合传动汇流行星排断齿故障动态特性仿真研究[J]. 振动与冲击, 2018, 37(5): 248-256.
HAO Chiyu1,2, FENG Guangbin2, YAN Pengcheng2, SUN Huagang2. Effects of broken tooth fault on dynamic characteristics of conflux planetary gear in power shift steering transmission based on rigid-flexible coupled method. JOURNAL OF VIBRATION AND SHOCK, 2018, 37(5): 248-256.

链接本文:

http://jvs.sjtu.edu.cn/CN/ 或 http://jvs.sjtu.edu.cn/CN/Y2018/V37/I5/248

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