Initial impact force analysis and simulation of planetary helical gear transmission

碰撞 反冲 影响 传输(电信) 有限元法 正确性 结构工程 力矩(物理) 计算机模拟 建模与仿真 工程类 机械 计算机科学 机械工程 模拟 物理 经典力学 电气工程 程序设计语言 计算机安全
作者
Xing Tian,Tao Qing,Ziyuan Li,Hao Wang,Xinlei Zhang,Wei Li
出处
期刊:Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science [SAGE Publishing]
卷期号:237 (24): 6057-6067 被引量:2
标识
DOI:10.1177/09544062231167684
摘要

The planetary gear transmission is widely used because of its advantages such as large transmission ratio and high transmission efficiency. But at the moment of starting, there is a speed difference between driving gear and driven wheel due to the backlash between the teeth, this will easily cause the initial collision and impact force, which seriously affect the life of gear transmission, even lead to tooth surface pitting and root fracture failure, therefore, it is necessary to conduct a quantitative analysis of the initial collision. Based on the gear meshing principle and the system dynamics theory, the analytical calculation formula of initial impact force for the internal and external meshing gear pair was derived. The impact simulation analysis model of planetary helical gear transmission was established based on the finite element LS-DYNA, and the simulation analysis results were compared with the analytical calculation results, which verified the correctness of the analytical calculation model. This paper reveals the impact collision mechanism and studies the influence law of the speed and temperature on the impact force, thus laying a good theoretical foundation for the dynamic modification design of the planetary gear transmission and preventing the failure of the gear teeth from impact collision.
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