摘要
本文由随机载荷谱统计的最佳方法——功率谱法即Huston-Skopinski给出的载荷峰值概率密度函数,根据疲劳累积损伤理论,预测构件的疲劳寿命.这使工程结构和部件的动力分析更加方便和可靠.该软件在IBM-PC机上实现.文中给出主要流程图和应用实例.
The power spectrum analysis is the optimum method of calculating random load spectrum. The probability density function for the peaks of load was given by W. B. Huston and T. H. Skopinski. In this paper,the fatigue lifetime of components is predicted by this method. It will be of great benifit to analyzing the reliability of engineering structure. The software has been finished on IBM-PC microcomputer. The main flowchart and the practical examples are given.
关键词
功率谱
载荷谱
疲劳寿命
可靠性
Power spectrum
Load spectrum
Fatigue lifetime
Reliability
