摘要
本文将能量包线随机平均法应用于分析单自由度双线性迟滞系统对白噪声激励的随机响应,详细分析了位移、速度及总能量的平稳响应各统计量随系统粘性阻尼、次斜率及激励强度的变化。解析结果与数字模拟结果比较表明,该方法优于迄今为止用于双线性迟滞系统随机响应分析的其他近似方法。
The method of stochastic averaging of energy envelope is applied to predict the response of bilinear hysteretic systems to white noise excitation. The statistics of stationary response for displacement, velocity and energy envelope as functions of excitation level, secondary slope and viscous damping are analyzed in detail. Comparisons with digital simulation show that the method is superior to other approximate methods which have been applied to random response of hysteretic systems.
出处
《航空学报》
EI
CAS
CSCD
北大核心
1989年第1期A028-A034,共7页
Acta Aeronautica et Astronautica Sinica
基金
国家自然科学基金
关键词
随机激励
迟滞
线性
能量包线
random excitation, bilinear systems, hysteresis, stochastic processes.
