计算力学学报2016，Vol.33Issue(5)：802-806,5.DOI:10.7511/jslx201605023
基于谱元法的空间刚架动力学特性分析
Dynamics characteristic analysis of space frame structure based on spectral element method
摘要
Abstract
Treating space frame structure as research obj ect,spectral element method (SEM)was applied to analyze dynamics characteristics.We could derive dynamic stiffness matrices of bar,shift and Timoshenko-beam.And then,dynamic stiffness matrix of space frame structure and theory formula of frequency domain response were established.The application field of SEM was expanded.Based on programming and computing,natural frequencies of space frame and harmonic response of any point were calculated and compared with the result of FEM.Transient responses were further calculated with load. In the frame structure dynamics analysis,research shows SEM is more accurate and effective than FEM, and is better suited to solve the problem of high-frequency vibrations.关键词
谱元法/空间刚架/固有频率/谐响应/瞬态响应Key words
spectral element method/space frame structure/natural frequencies/harmonic response/transient response分类
数理科学引用本文复制引用
鄂林仲阳,杜强,李上明..基于谱元法的空间刚架动力学特性分析[J].计算力学学报,2016,33(5):802-806,5.基金项目
中国工程物理研究院总体工程研究所创新与发展基金(13cxj35)资助项目 （13cxj35）
