基于有限元的连杆动态特性及疲劳分析  

Dynamic Characteristics and Fatigue Analysis of Connecting Rod Based on FEM

作　　者：崔强[1] 胥锴[1] 

机构地区：[1]安徽机电职业技术学院机械工程系,安徽芜湖241000

出　　处：《佳木斯大学学报（自然科学版）》2017年第6期1027-1030,共4页Journal of Jiamusi University：Natural Science Edition

基　　金：2017安徽高校自然科学研究重点项目(KJ2017A750)

摘　　要：连杆在发动机的工作中占着举足轻重的位置,其使用性能及寿命直接影响发动机的性能,为了研究得到连杆动态特性,利用ANSYS Workbench对连杆进行了疲劳分析,得到了连杆的前六阶阵型图,从而确定其可靠性。同时也得到连杆损伤矩阵图、安全系数图和雨流矩阵图。从分析结果中可以看出连杆小端与杆身连接处应力较大,是寿命较低的区域,从而为连杆的设计与制造提供参考。The connecting rod occupies a pivotal position m the work ol the engine, so its pertormanceand lii directly affects the performance of the engine, in order to get the dynamic characteristics of the connect-ing rod, we use ANSYS Workbench to link the fatigue analysis, the linkage of the first six order formation map,so as to determine its reliability. At the same time, doing the fatigue analysis of the connecting rod to get the linkdamage matrix, safety coefficient map and rain flow matrix, from the resuhs of the analysis, it can be seen thatthe small end of the connecting rod connected with the shaft stress is larger, which is the lower life area, so as toprovide reference for the design and manufacturing for connecting rod.

关 键 词：有限元 连杆 动态特性分析 疲劳分析 

分 类 号：TH123[机械工程—机械设计及理论]