微波结构中的体壳单元混合建模方法  

Hybrid modeling method based on solid element and shell element in microwave structure

作　　者：崔鼎[1] 苏友斌[1] 崔云俊[1] 鲜玉强[1] 张伟[1] 

机构地区：[1]中国工程物理研究院应用电子学研究所,四川绵阳621900

出　　处：《强激光与粒子束》2013年第B05期106-110,共5页High Power Laser and Particle Beams

基　　金：国家高技术发展计划项目

摘　　要：针对体壳单元混合建模过程中的自由度匹配问题,研究了多点约束(MPC)方法的实现与应用情况,并通过馈源结构的实例分析了MPC方法存在的应用问题,验证利用MPC方法计算的精确性。结果表明:通过MPC方法合理连接体壳单元具有非常高的计算精度,但在载荷区域进行混合建模将增大误差。Different geometrical characteristics are common in the modelling and analysis of microwave structure,the hybrid modeling method based on solid element and shell element is very effective,because the element and node number will decrease by the method.Aimed at the degree of freedom（DOF） matching problem,the implement and application of multipoint constraint（MPC） method is researched,the problem is analyzed with the feed structure analysis,and its accuracy is validated.The results show that the MPC method is very accurate,but building a model in the load area will lead to error.

关 键 词：微波结构 体壳单元 多点约束方法 自由度匹配 

分 类 号：TH128[机械工程—机械设计及理论]