初始内压和帘线间距对空气弹簧垂向特性的影响研究  

Research on effect of initial internal pressure and cords spacing on vertical characteristic of air spring

作　　者：何锋[1] 李彬[1] 曹龙田[1] 张军[1] 

机构地区：[1]贵州大学机械工程学院,贵阳550003

出　　处：《起重运输机械》2011年第5期63-66,共4页Hoisting and Conveying Machinery

基　　金：贵州省工业攻关项目:商用车空气弹簧数字设计及产品研制(黔科合GY[2008]3013)

摘　　要：运用Abaqus有限元软件,以膜式空气弹簧为例,简述了空气弹簧分析中的有限元基本理论并建立其有限元模型,通过对影响空气弹簧垂向特性的初始内压和帘线间距2个关键因素进行仿真分析,得到不同初始内压和不同帘线间距的几组垂向位移-载荷曲线。分析表明:空气弹簧的垂直刚度随初始内压的增大而增大;空气弹簧外径膨胀造成帘线间距增大,从而引起垂向刚度降低;初始内压越大,空气弹簧外径膨胀对帘线间距变化的影响程度也越大。本研究对空气弹簧设计中如何合理选择初始内压和帘线间距提供了参考。Using Abaqus finite element software,taking diaphragm air spring as an example,the paper introduces finite element theory in air spring analysis and establishes its finite element model.Several vertical displacement-load curves of different initial internal pressure and different cord spacing are obtained from simulation analysis on two key factors affecting vertical characteristic of air spring,the initial internal pressure and cord spacing.The analysis shows that the vertical stiffness of air spring increases with initial internal pressure and the higher the pressure,the greater the effect of expansion of outside diameter on changes in the cord spacing.The research provides basis for reasonable selection of initial internal pressure and cord spacing in air spring design.

关 键 词：空气弹簧 初始气压 垂向刚度 有限元分析 

分 类 号：U463.33[机械工程—车辆工程]