摘要
基于计算和试验相结合的系统建模方法 ,以某航天器仪器舱结构为例 ,应用MSC/NASTRAN有限元计算工具和LMS CADA/X动态试验分析系统 ,进行了计算机 试验辅助建模 (CTAM )。针对这一类航天复杂结构建模过程的具体问题 ,提出了相应的解决办法 。
Dynamic analysis of astronautical components and assemblies is a very important step in design optimization, correct model are therefore important. The paper discusses the process of Computer and Test Aided Modelling (CTAM), finally, an application example is presented based on MSC/NASTRAN and LMS CADA/X, and several suggestions are reported to avoid possible errors in dynamic updating for complicated structure. The Modal Assurance Criteria (MAC), which is used to assess the correlation between two modes or operating shapes, illustrates the effectiveness of the process.
出处
《高技术通讯》
EI
CAS
CSCD
2001年第7期68-70,22,共4页
Chinese High Technology Letters
基金
863计划资助项目 (863 2 416)
