摘要
利用有限元软件Nastran对模型直升机尾减速器连接管进行了模态分析,获得了连接管的基本振型和相关频率,与试验结果进行比较,两者有较好的一致性,因而可以利用所建立的有限元模型完成连接管的动态响应分析及优化设计。
The application of finite element soft Nastran to carry out a modal analysis for the link tube of a kind of helicopter’s trail reducer, the mode shape and natural frequency of the link tube are obtained. The results of finite element analysis well coincide with the result of modal test, so the model can be used in the analysis of dynamic response and design optimization.
出处
《机械工程师》
2008年第12期120-121,共2页
Mechanical Engineer
