摘要
本文提出一种新的运动方程缩减方法并指出与特征方程缩减技术之间的联系。同时给出了主副自由度的判别准则和算法。数值例子表明采用本法可大大减少计算时间并能得到较好的精度。所提出的方法可有效地应用于高层建筑和空间网架的动力分析。
In this paper a new method of reducing the motion equation is presented. The relation between this method and the reduction techniques of eigenproblem is proved. Furthermore, the rule for choosing primary and secondary degrees of freedom is provided. The results of some numerical examples show that a satisfactory precision is achieved and computer time consumed is evidently saved. The method presented can be used effectively in dynamic analysis of highrise buildings and space frames.
出处
《东南大学学报（自然科学版）》
EI
CAS
CSCD
1991年第6期63-69,共7页
Journal of Southeast University：Natural Science Edition
关键词
动力分析
运动方程
动力缩减
motion equation / dynamic reduction, primary degrees. secondary degrees
