摘要
现在大型工程结构趋于复杂,建立完整的计算模型需要大量的工作量和存储空间,在此基础上进行有效的动力分析将非常困难。本文利用子结构方法提取通用有限元软件ANSYS建立的结构精细有限元计算模型,再用变形修正方法进行计算模型简化,在此基础上进行模态分析求解频率。通过两个算例验证了该方法的正确性及高效。
Engineering structures are becoming large and complex.The establishment of an elaborate computing model requires a lot of work and effective dynamic analysis is very difficult.In this paper,the sub-structure method combined with deformation modification is utilized to obtain reduced models of complex structures from the elaborate finite element model built by ANSYS software.Then structures’ frequencies are calculated using the presented reduced model and two examples illustrate its validity and efficiency.
出处
《低温建筑技术》
2013年第8期53-56,共4页
Low Temperature Architecture Technology
基金
国家自然科学基金青年基金(11102033)
关键词
子结构方法
结构动力特性
变形修正
sub-structure method
structural dynamic performance
deformation modification
