活塞发动机阀体有限元分析  

Finite Element Analysis of Steam Distributing Valve of Piston Engine

作　　者：崔景元[1] 胡欲立[1] 杨杰[1] 

机构地区：[1]西北工业大学,西安710072

出　　处：《机械科学与技术》2003年第S2期118-120,共3页Mechanical Science and Technology for Aerospace Engineering

摘　　要：以某型鱼雷活塞发动机配气阀阀体为例,利用软件I-DEAS和Marc,对阀体在复杂的位移、力和换热边界条件下的温度场和应力场进行了三维有限元分析。确定了阀体主要失效位置,表明了热应力为阀体的主要破坏因素,从而为改进阀体冷却设计提供参考。Taking the steam distributing valve of some torpedo piston engine as an example, a model of steam distributing valve was built and analyzed under complex boundary conditions of displacement and thermal transfer using I-DEAS and a commercially available finite element code Marc. The temperature field and stress field were presented. According to the result, maximum deformation place was predicted, and thermal stress was the major factor for causing failure. The result can be used to improve cooling design of steam distributing valve.

关 键 词：活塞发动机 阀体 Marc软件 温度场 应力场 

分 类 号：TJ630.32[兵器科学与技术—武器系统与运用工程]