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基于随机有限元的车辆扭力轴疲劳寿命预测
引用本文:郝晋峰,石全,史宪铭,黄轶州.基于随机有限元的车辆扭力轴疲劳寿命预测[J].兵工自动化,2008,27(11):29-31.
作者姓名:郝晋峰  石全  史宪铭  黄轶州
作者单位:军械工程学院装备指挥与管理系,河北,石家庄,050003
摘    要:采用随机有限元法预测车辆扭力轴的寿命,对车辆训练中扭力轴的工作环境进行分析,建立扭力轴的随机有限元模型,运用Matlab对扭力轴所受的载荷谱进行编制,将确定型有限元分析软件ANSYS与随机有限元相结合,得出扭力轴的应力分布函数,利用S—N曲线计算扭力轴的疲劳寿命,提出新的更换周期。

关 键 词:随机有限元  扭力轴  疲劳寿命

Life Cycle Forecast of Vehicle Torsion Shaft Based on Stochastic Finite Element
HAO Jin-feng,SHI Quan,SHI Xian-ming,HUANG Yi-zhou.Life Cycle Forecast of Vehicle Torsion Shaft Based on Stochastic Finite Element[J].Ordnance Industry Automation,2008,27(11):29-31.
Authors:HAO Jin-feng  SHI Quan  SHI Xian-ming  HUANG Yi-zhou
Affiliation:(Dept. of Equipment Command & Management Engineering, Ordnance Engineering College, Shijiazhuang 050003, China)
Abstract:Use stochastic finite element method to predict life cycle of vehicle torsion shaft,analyze working conditions of vehicle torsion shaft in training,set up stochastic finite element modeling of the torsion shaft,program and analyze the loading spectrum by Matlab.Combine the finite element analysis software ANSYS with stochastic finite element method,find out the stress distributing function of the torsion shaft,calculate the fatigue life of torsion shaft by S-N curve,and put forward the new replacing cycle at last.
Keywords:Stochastic finite element  Torsion shaft  Life cycle
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