摘要
随机因素对振动的影响不可忽略。本文将质量刚度、阻尼系数看作随机变量,研究了单自由度强迫振动的共振频率的可靠性。对随机变量进行计算机模拟,产生大量样本。应用Monte Carlo模拟研究了振动位移的可靠性。模拟次数越多,求得的可靠度精度越高。算例表明本文方法是正确的。
Influence of stochastic factor for vibration can not be neglected. This paper studies the reliability of resonant fre- quency for a freedom forced vibration when mass, stiffness and damping are regarded as random variables. Simulating ran- dom variables can generate a lot of samples. People use Monte Carlo simulation to research the reliability of vibration dis- placement. The more samples of Monte Carlo simulation, the higher its accuracy is. The numerical example proves the cor- rectness of the method chosen in this paper.
出处
《十堰职业技术学院学报》
2013年第1期97-99,共3页
Journal of Shiyan Technical Institute
关键词
单自由度
强迫振动
可靠性
共振频率
模拟
single degree of freedom
forced vibration
reliability
resonant frequency
simulation
