会议专题

Application of Rough Set Theory in Stochastic Fatigue Analysis of Vehicle Frame

  Considering the up-down deflection of vehicle frame as a random variable when a car runs unsteadily,the alternating stress cased by deflection is random.The probability density function is determined by date of the alternating stress acting on the frame.Using the concepts of upper and lower approximation in the rough set theory and confidence degree,random parameters of vehicle frame can be transferred into certain interval values.When the confidence degree took a value from 0 to 1,a series of intervals between the upper and lower approximation are determined respectively.With the algorithm of the interval operation,a method of fatigue analysis is put forward.

Fatigue random variable rough set finite element method

Lihui Zhao Changhong Liu

Automotive Engineering College, Shanghai University of Engineering Science; Shanghai, China School of Mechanical and Power Engineering East China University of Science and Technology, Shanghai

国际会议

the 2012 International Conference on Frontiers of Advanced Materials and Engineering Technology (2012年先进材料与工程技术国际会议(FAMET 2012))

厦门

英文

1814-1817

2012-01-04(万方平台首次上网日期,不代表论文的发表时间)