基于有限元法的塑料齿轮动态啮合接触分析  

Dynamic Meshing Contact Analysis for Plastic Gears Based on Finite Element Method

作　　者：云永琥 塔静宁 胡泓[1] 

机构地区：[1]哈尔滨工业大学深圳研究生院,深圳518055 [2]德昌电机(深圳)有限公司,深圳518125

出　　处：《机械设计与研究》2018年第1期87-90,共4页Machine Design And Research

摘　　要：为研究塑料直齿轮在动态啮合过程中的应力分布规律，运用ANSYSWorkbench建立了塑料直齿轮啮合副的有限元模型，基于接触有限元法对塑料直齿轮的接触过程进行了仿真分析，得到了塑料直齿轮的动态接触应力与齿根应力的分布规律，然后利用该方法研究了在不同工作载荷下塑料齿轮的动态啮合规律。计算结果表明：有限元数值仿真结果与采用赫兹应力理论以及刘易斯方程所计算的塑料齿轮应力值相吻合，验证了该方法的正确性；同时还获得了工作载荷对塑料齿轮啮合传动的影响，为塑料齿轮的啮合特性分析提供可行的分析方法。In order to investigate the stress distribution of plastic spur gear during dynamic meshing, the finite element model of plastic spur gear meshing pair is established by ANSYS Workbench, and the contact process of plastic spur gear is simulated based on the contact finite element method. The dynamic contact stress and tooth root stress distribution of plastic spur gears are obtained. And then the dynamic meshing of plastic gear meshing process under different working loads is studied by this method. The results show that the finite element numerical simulation results are consistent with the stress values of the plastic gears calculated using the Hertz stress theory and the Lewis equation, which verifies the correctness of the method. In addition, the influence of the working load on the meshing transmission of the plastic gear is obtained, which provides an effective analytical method for the analysis of the meshing characteristics of plastic gears.

关 键 词：塑料直齿轮 接触应力 齿根应力 有限元法:动态接触分析 

分 类 号：TH132.41[机械工程—机械制造及自动化]