激光器引射式压力恢复系统过渡段的分析与结构改进  

Optimization design of transition part in pressure recovery system

作　　者：麻越垠[1] 王元兴[1] 陈万华[1,2] 

机构地区：[1]中国空气动力研究与发展中心,四川绵阳621000 [2]空气动力学国家重点实验室,四川绵阳621000

出　　处：《机械设计》2014年第1期51-54,共4页Journal of Machine Design

基　　金：空气动力学国家重点实验室基金资助项目(SKLA2009A0103)

摘　　要：为研究过渡段振动情况,建立有限元分析模型,利用MSC.Patran/Nastran对过渡段进行静力学和模态分析,采用LMS Test.lab对过渡段进行试验研究。通过对比仿真和试验结果,分析过渡段竖直方向振动剧烈的影响因素,提出采用加强筋改进过渡段的优化方案,并通过数值分析方法检验设计成果。研究结果表明:改进后的过渡段完全满足预定的改进目标。To study the vibration of transition part,a finite element analysis model was established in MSC. Patran/Nastran to analyze static and modal hehaviors of the part which was tested for vibration research by LMS Test.lab. Compared the result of simulation with test, the reason for vibrating was found. An optimization design was introduced,which was verified through simulation. Finally,the resuh has shown that the optimization design can achieve the preconcert object.

关 键 词：优化设计 有限元分析 振动测试 过渡段 

分 类 号：TH122[机械工程—机械设计及理论]