摘要
本文推广了文献的方法而给出多相位激励平稳随机响应的各种功率谱密度计算公式.这一算法计入了所有参振振型间的耦合项,而且方法简便,计算量少,还可方便地处理非正交阻尼矩阵,有很大的实用性.
In this paper, formulas for computing various response spectrum matrices of structures subjected to stationary random multi-phase excitations are established based on the deterministic algorithm proposed in ref. [1]. This algorithm involves all cross-correlation items between the participant modes, so that this is a kind of CQC method (Complete Quadratic Combination). In addition, this method is simple for programming, efficient for computing, and convenient for dealing with non-orthogonal damping matrices. Therefore, this is a good method for engineering applications.
出处
《振动工程学报》
EI
CSCD
1992年第1期73-77,共5页
Journal of Vibration Engineering
基金
国家自然科学基金
关键词
多相位
随机响应
功率谱
multi-phase
random response
power spectrum
