摘要
本文讨论了在实验模态分析中如何消除附加质量和附加刚度对实模态参数影响的方法.为了验证方法的有效性,文中给出了算例和实际应用的例子.文末还讨论了输入数据的误差和输入模态的阶数对结果的影响.
In this paper we descussed a method how to eliminate the effects of additive masses and stiffnesses on the real modal analysis(EMA).Simulated computer tests and application exemples are given to demonstrate the advantages of this method. Finally we discussed the effects of the errors of input databand input ouders of the normal modes on the results.
出处
《实验力学》
CSCD
北大核心
1990年第1期46-52,共7页
Journal of Experimental Mechanics
关键词
附加质量
附加刚度
模态分析
additive masses
additive stiffnesses
modal anlysis
