Nonzero mean random vibration of hysteretic systems
Nonzero mean random vibration of hysteretic systems
复制标题
迟滞系统的非零平均随机振动
DOI：
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发表时间：
1984
期刊：
影响因子：
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通讯作者：
T. T. Baber
中科院分区：
文献类型：
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作者：
T. T. Baber
在非零均值随机激励下分析了迟滞系统的微分方程模型。在某些条件下，运动方程的封闭形式线性化是可能的。所得的均值和零时滞协方差响应与蒙特卡罗响应模拟非常吻合。推广到降级系统是很简单的。根据模拟结果计算出的偏度系数表明响应明显不对称。发现平稳响应统计与零均值情况密切相关。
A differential equation model for hysteretic systems is analyzed under nonzero mean random excitation. Under certain conditions, a closed form linearization of the equations of motion is possible. Resulting mean and zero time lag covariance responses agree well with Monte Carlo response simulations. Generalization to degrading systems is straightforward. Skewness coefficients computed from simulation results indicate significantly asymmetric response. Stationary response statistics are found to relate closely to the zero mean case.