柴油机连杆疲劳寿命试验及仿真分析  

Diesel Engine Connecting Rod Fatigue Life Test and Simulation Analysis

作　　者：李海桥[1] 刘汉涛[1] 马理强[1] 苏铁熊[1] 

机构地区：[1]中北大学机电工程学院,太原030051

出　　处：《煤矿机械》2013年第8期57-58,共2页Coal Mine Machinery

基　　金：山西省青年创新基金(2008021004)

摘　　要：针对某发动机连杆连续出现的断裂问题,利用有限元软件结合连杆拉压试验结果修正,完成了连杆静强度有限元分析,对连杆进行了试棒级的材料性能试验,得到相关的材料数据;利用应变能密度法,结合试棒的实验数据对连杆的疲劳特性进行了预测,并探讨了载荷对疲劳寿命的影响。This research is carried to the problems that an engine connecting rod fracture successive.The Static strength Analysis is completed through using the finite element software and test data.The fatigue properties were predicted by using the strain energy density rule combined with the experimental data of the rod material,and improve its fatigue life by optimizing the rod structure.

关 键 词：柴油机连杆 材料试验 累积损伤 应变能密度 疲劳准则 

分 类 号：TH113.2[机械工程—机械设计及理论]