摘要
本文研究复杂结构的动力学设计问题。发展了多频优化、多模态优化和频率响应优化等多种动力学设计方法,考虑了设计变量上、下限,重量上、下限,以及静强度准则等约束条件。采用结构按设计变量建立的有限元模型,根据动力学要求的灵敏度分析确定设计变量,用最优化方法进行结构动力修改。计算实例证明了方法有效,并满足工程需要。
This paper deal with the dynamic design problems of the complex stuctures. Some dynamic design methods, such as multi-frequency, multimodal and frequency response optimization design,are developed, in which some constrain conditions,such as the upper and lower limits of the design variables,the upper and lower limit of the total weight, and the static strength,are introduced. Firstly, the finite element model of the structures based on the design variables is set up, secondly,the variables are reselected through the sensitivity analysis, and finally, the structure dynamic modification is made by means of the optimization method. Some design examples prove that it is very efficient and can be used in the engineering analysis and design.
出处
《振动与冲击》
EI
CSCD
北大核心
1993年第2期8-12,共5页
Journal of Vibration and Shock
