摘要
利用能量包线随机平均法,导出了库伦滑动摩擦刚性结构在高斯白噪声地面作用下响应的稳态联合概率密度函数的解析解,它与文献[2]的等效非线性系统法所得之解完全相同。与蒙特卡洛模拟结果对比表明,当库伦阻尼较小时,该解析解能够满意地预测研究系统响应的概率分布。
Using the stochastic average method of energy envelope, the analytical solution of the joint probability density function of steady-state responses of coulomb sliding friction rigid structures to Gaussian white noise is derived, which is the same as that of in reference [2] by means of the equivalent nonlinear system method. The results compared with Monte Carlo simulation display that the analytical solution can well forecast the probability distribution of the steady-state responses of the previous systems for smaller coulomb damping.
出处
《世界地震工程》
CSCD
2001年第1期46-49,共4页
World Earthquake Engineering
基金
河南省教委自然科学基金资助项目!(1999570003)