SIMULATION AND STRUCTURAL IMPROVEMENT DESIGN OF GEAR SYSTEM OF SHIFT ACTUATOR

ZHAO Xia; LIU XueWen

doi:10.16579/j.issn.1001.9669.2022.03.032

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SIMULATION AND STRUCTURAL IMPROVEMENT DESIGN OF GEAR SYSTEM OF SHIFT ACTUATOR

更新时间：2022-09-22

- SIMULATION AND STRUCTURAL IMPROVEMENT DESIGN OF GEAR SYSTEM OF SHIFT ACTUATOR
- Journal of Mechanical Strength Vol. 44, Issue 3, Pages: 737-741(2022)
- 作者机构：
  
  1. 上海工程技术大学机械与汽车工程学院
- 作者简介：
- 基金信息：
- DOI：10.16579/j.issn.1001.9669.2022.03.032
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ZHAO Xia, LIU XueWen. SIMULATION AND STRUCTURAL IMPROVEMENT DESIGN OF GEAR SYSTEM OF SHIFT ACTUATOR. [J]. 44(3):737-741(2022)
DOI：

ZHAO Xia, LIU XueWen. SIMULATION AND STRUCTURAL IMPROVEMENT DESIGN OF GEAR SYSTEM OF SHIFT ACTUATOR. [J]. 44(3):737-741(2022) DOI： 10.16579/j.issn.1001.9669.2022.03.032.

摘要

针对企业研发的某款换挡执行机构输出齿轮在工作过程中发生断裂的现象，采用有限元分析方法对齿轮系统进行多体动力学仿真计算。输出齿轮和输出轴在运动过程中的应力分布云图表明，输出齿轮最大等效应力值已超过材料的屈服强度，输出轴最大等效应力值接近材料的屈服强度。对输出齿轮和输出轴结构薄弱处进行改进，并对改进后的齿轮系统进行仿真计算和过载荷试验验证。结果表明输出齿轮和输出轴最大应力值显著降低，满足齿轮系统强度要求，提高了换挡执行机构的可靠性和安全性。

Abstract

Aiming at the phenomenon that the output gear of a shift actuator developed by an enterprise breaks in the working process, using the finite element analysis method to simulate the multi-body dynamics of the gear system. The stress distribution cloud diagram of the output gear and the output shaft during the movement shows that the maximum equivalent stress value of the output gear has exceeded the yield strength of the material, and the maximum equivalent stress value of the output shaft is close to the yield strength of the material. Improve the structural weaknesses of the output gear and output shaft, simulate the improved gear system and carry out the overload test to verify. The results show that the maximum stress value of the output gear and the output shaft is significantly reduced, which meets the strength requirements of the gear system and improves the reliability and safety of the shift actuator.

关键词

换挡执行机构齿轮系统仿真结构改进

Keywords

Shift actuatorGear systemSimulationStructural improvement

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