【摘要】 随着计算技术的发展,求解随机振动问题的数值模拟法愈来愈受到重视。数值模拟法的有效性很大程度上取决于模拟随机过程或随机场的便利与否及精度。本文作者回顾了随机过程数值模拟方法的近期进展,并着重介绍和评述了频域的谐波叠加法和时域的线性滤波器法,希望能对随机模拟研究起到抛砖引玉的作用。更多还原

【Abstract】 With the development of computational techniques,the interests in the Monte Carlo method available to solve stochastic vibration problems has intensified in recent decades.The effectiveness of Monte Carlo method is determined,to a great extent,by the expediency and accuracy of the procedure used for synthesizing random processes,involving external excitation,parametric excitation,system stochasticity,etc.The recent development in simulation methods is presented in this paper.Further,the wave superposition methods representing the processes in the frequency domain and the methods based on linear filtering representing the processes in the space/time domain are discussed systematically,which could be helpful to the study of stochastic simulation.更多还原