基于灰色模型GM(1,1)的疲劳寿命预测  

Prediction for Fatigue Life Based on Grey Model GM(1,1)

作　　者：孙玉兰[1] 王茂廷[1] 

机构地区：[1]辽宁石油化工大学机械工程学院,抚顺113001

出　　处：《科学技术与工程》2011年第3期560-562,共3页Science Technology and Engineering

摘　　要：将疲劳现象看作是存在于一个灰色系统中,运用GM(1,1)灰色预测模型对某试样的疲劳寿命进行预测,采用此方法使预测误差由原来的57.5%减小到24.2%,预测结果趋于安全,这是传统疲劳寿命计算方法所无法办到的。The fatigue phenomenon is regarded as being in a grey system.By using grey model GM（1,1）to predict fatigue life of the sample.The prediction error decreases from 57.5% to 24.2%,and the prediction result tends to be safe because the grey prediction method is adopted.This is what the traditional methods cannot do.

关 键 词：疲劳寿命 GM(1 1)模型 灰色预测 疲劳应力 

分 类 号：O346.2[理学—固体力学]