【摘要】 本文对于具有随机参数的线性转轴系统受平稳随机地面激励的问题,给出了求解其随机响应方差变异性的计算方法。由于先用虚拟激励法将平稳随机激励转化为确定性的简谐激励,使双随机问题精确地转化为单随机问题,使求解过程简便有效。更多还原

【Abstract】 An efficient analysis method is proposed for rotating shaft systems with uncertain parameters subjected to stationary random seismic excitations. The pseudo excitation method is first used to transform the random excitations into deterministic sinusoidal excitations. As a result, the dual-random problems are transformed into much simpler single excitation problems accurately, which can be computed using the conventional perturbation method. Numerical examples show that the results computed using the proposed method agree well with those obtained from Monte-Carlo simulation.更多还原