【摘要】 介绍了非线性系统响应方差计算的非高斯矩截断方法,并用此方法计算了阻尼依赖于能量的系统的响应,取得了与理论值高度吻合的结果。研究表明,随着截断矩的阶次上升,计算精度大大提高,但同时计算机的 CPU 时间也大幅度增加。更多还原

【Abstract】 A non-Gaussian moment truncation method is applied to calculate the response variance of a nonlinear damping system subjected to random excitation.As the order of the truncation moment getting higher the computation results are more accuracy compared with the theoretical analysis,but the computer CPU time increase too.更多还原