摘要
本文推广了文献[1]的算法,使结构在平稳随机地面运动激励下的位移、内力等响应量的自功率谱矩阵或互功率谱矩阵都可以简单地由两个向量相乘而得到。此方法精度高、速度快、掌握容易、编程方便,较之传统方法有很大的优越性。
A fast algorithm is proposed based on Reference[1] . The auto-spectral or cross-spectral density matrices of the displacement and internal force responses due to the stationary random ground motion can all be obtained quite conveniently. Each of those matrices is simply the product of two vectors. It is shown that this algorithm is both accurate and efficient. And also it is easy for learning and programming. So it is a good improvement of the traditional method.
出处
《地震工程与工程振动》
CSCD
北大核心
1990年第4期38-46,共9页
Earthquake Engineering and Engineering Dynamics
基金
国家自然科学基金
