束腰型膜片联轴器刚度阻尼仿真与试验分析  

Simulation and Experimental Analysis of Stiffness and Damping of the Waist Type Diaphragm Coupling

作　　者：洪运 王旦 农苏 朱如鹏[1] 陈蔚芳[1] Hong Yun;Wang Dan;Nong Su;Zhu Rupeng;Chen Weifang(College of Mechanical&Electrical Engineering,Nanjing University of Aeronautics and Astronautics,Nanjing 210016,China)

机构地区：[1]南京航空航天大学机电学院,江苏南京210016

出　　处：《机械传动》2024年第4期116-125,共10页Journal of Mechanical Transmission

基　　金：南京航空航天大学“直升机传动技术重点实验室”自主课题中国航发集团自主创新资金课题资助(HTL-A-21G07)。

摘　　要：膜片联轴器的刚度、阻尼特性是分析含膜片联轴器传动系统振动特性的基础。基于An⁃sys有限元仿真软件,考虑接触非线性及大变形效应,仿真分析了膜片联轴器扭转、轴向、角向和径向静刚度特性以及扭转和轴向动力学特性;分析了膜片螺栓孔分布圆直径、螺栓孔径、膜片最小宽度和膜片厚度等膜片结构参数对静刚度的影响;进行静态、动态扭转和轴向拉伸试验,验证了仿真结果的正确性。结果表明,膜片螺栓孔分布圆直径与膜片厚度对膜片各向刚度影响较大,可通过类椭圆函数建立膜片联轴器动力学模型,求解获得膜片振动1周期内非线性刚度及等效阻尼系数变化。The stiffness and damping characteristics of the diaphragm coupling are the basis for analyzing the vibration characteristics of the shafting system with the diaphragm coupling.Based on Ansys finite element simulation software,considering contact nonlinearity and large deformation effects,this study simulates and ana-lyzes the torsional,axial,angular and radial static stiffness characteristics and torsional and axial dynamic char-acteristics of the diaphragm coupling,and analyzes the influence of the diaphragm structure parameters such as the diameter of the bolt hole distribution circle,the diameter of the bolt hole,the minimum width of the dia-phragm and the thickness of the diaphragm on the static stiffness.Finally,static,dynamic torsion and axial ten-sion tests are carried out to verify the correctness of the simulation results.The results show that the diameter of the bolt hole distribution circle and the thickness of the diaphragm have a greater influence on the anisotropic stiffness of the diaphragm.The dynamic model of the diaphragm coupling can be better established through the quasi elliptic function.The nonlinear stiffness and the equivalent damping coefficient changes in a period of the diaphragm vibration can be obtained.

关 键 词：膜片联轴器 有限元 刚度 阻尼 

分 类 号：TH133.4[机械工程—机械制造及自动化]