航空科学技术2025，Vol.36Issue(1)：56-63,8.DOI:10.19452/j.issn1007-5453.2025.01.007
膜盘联轴器轴向刚度特性分析
Analysis on Axial Stiffness Characteristics of Diaphragm Coupling
摘要
Abstract
The analysis of the axial stiffness characteristics of diaphragm couplings is crucial for ensuring the transmission accuracy,stability,and service life of mechanical systems.By considering interface contact behavior using the augmented Lagrange multiplier method,a finite element model of a bolted diaphragm coupling is established using Solid 185 elements.This model is used to analyze the effects of various parameters such as bolt preload,rotational speed,number of bolts,and friction coefficient on the coupling interface contact characteristics and axial stiffness properties.The research results indicate that variations in these parameters affect the adhesive area of the contact surface,which in turn influences the flexible deformation of the structure,ultimately impacting the axial stiffness of the coupling.There is a positive correlation between axial stiffness and the adhesive area of the contact surface.Additionally,the number of bolts is the primary factor affecting axial tensile and compressive stiffness,followed by preload and friction coefficient,while rotational speed has the least impact on axial stiffness.Moreover,an increase in the friction coefficient can lead to changes in the contact state and stress distribution on the contact surface,thereby increasing axial tensile stiffness while reducing axial compressive stiffness.This study aims to provide clear guidance for the design of diaphragm couplings.关键词
螺栓连接/膜盘联轴器/接触特性/轴向刚度特性/有限元法Key words
bolt joint/diaphragm coupling/contact characteristics/axial stiffness characteristics/finite element method分类
机械制造引用本文复制引用
杜宇彤,马辉,慕琴琴..膜盘联轴器轴向刚度特性分析[J].航空科学技术,2025,36(1):56-63,8.基金项目
航空科学基金(20230015050001) Aeronautical Science Foundation of China(20230015050001) （20230015050001）
