无摩擦气缸活塞的结构变形分析  

Structural Deformation Analysis of Frictionless Cylinder-Piston

作　　者：徐新正 孙建辉[1] 袁巧玲[1] 单晓杭[1] 

机构地区：[1]特种装备制造与先进加工技术教育部/浙江省重点实验室(浙江工业大学),浙江杭州310014

出　　处：《轻工机械》2014年第2期87-90,94,共5页Light Industry Machinery

摘　　要：针对超低频悬挂装置刚体往复运动的无摩擦要求,设计了一套新颖的无摩擦气缸-活塞结构。建立了无摩擦气缸-活塞应力计算模型,得到气缸和活塞结构应力计算公式。利用ANSYS Workbench建立无摩擦气缸-活塞的气膜仿真计算模型,计算得到气膜沿活塞轴向的压力分布情况,利用单向流固耦合模块将气膜压力加载到无摩擦气缸-活塞上,基于线性静力结构分析模块Static Structural计算无摩擦气缸-活塞应力和应变分布,对结果做出分析,对无摩擦气缸-活塞结构不合理之处提出了解决方案。For rigid body frictionless requirements of ultra-low frequency suspension reciprocating motion,an innovative frictionless cylinder-piston structure was presented.A stress calculation model of frictionless cylinder-piston was built.The stress calculation formula of cylinder and piston structure was made.A frictionless cylinder-piston of the air film modal was established by ANSYS Workbench.Air film pressure distribution along the axial piston was appeared after calculation,and the pressure was loaded into the frictionless cylinder piston by the fluid-structure coupling module.Stress and strain distribution of the results was obtained by linear static structure analysis module-Static Structural calculation.The results were analyzed,and solutions were put forward for unreasonable place of frictionless cylinderpiston structure.

关 键 词：无摩擦气缸 活塞 结构变形 ANSYS Workbench软件 

分 类 号：TH138.51[机械工程—机械制造及自动化]