基于装配工况发动机连杆有限元分析  

Finite Element Analysis of Engine Connecting Rod Based on Assembly Conditions

作　　者：郭华礼 Guo Huali(School of Automobile and Traffic Engineering,Guilin University of Aerospace Technology,Guilin City,Guangxi Zhuang Autonomous Region 541004,China)

机构地区：[1]桂林航天工业学院汽车与交通工程学院,广西壮族自治区桂林市541004

出　　处：《农业装备与车辆工程》2022年第5期55-60,共6页Agricultural Equipment & Vehicle Engineering

基　　金：2020年广西壮族自治区一流课程《汽车构造》。

摘　　要：以某汽油机连杆为研究对象,利用三维建模软件完成连杆数模搭建,通过Hyper Mesh完成有限元前处理,基于曲柄连杆机构运动及动力学对连杆在装配、最大燃气爆发压力和最大惯性力等工况下进行有限元分析。结果表明强度满足使用要求,其变形在轴瓦容差范围内,为后续连杆的设计及优化提供参考。This paper takes the connecting rod of a gasoline engine as the research object. 3D modeling software is used to build the connecting rod model. The connecting rod finite element model is completed with HyperMesh. Combining the knowledge of crankconnecting rod mechanism motion and dynamics, this paper conducts the finite element analysis of the connecting rod, under the condition of assembly, maximum gas pressure and maximum inertial force. After analysis, the strength of the connecting rod meets the requirements of working condition, and the deformation of the end face of the connecting rod is within the tolerance of the bearing bush,which provides a certain theoretical basis for the subsequent design and optimization of the connecting rod.

关 键 词：发动机连杆 运动分析 燃气爆发压力 惯性力 

分 类 号：TK413.3[动力工程及工程热物理—动力机械及工程]