基于ANSYS Workbench的发动机曲轴强度及疲劳分析  

Strength and Fatigue Analysis of Engine Crankshaft Based on ANSYS Workbench

作　　者：彭飞 PENG Fei(Department of Mechanical Engineering,Tangshan Polytechnic College,Tangshan 063299,China)

机构地区：[1]唐山工业职业技术学院机械工程系,河北唐山063299

出　　处：《机械工程与自动化》2020年第2期81-82,85,共3页Mechanical Engineering & Automation

摘　　要：利用SolidWorks建立了活塞曲轴总成模型,分析计算了曲轴在各个扭转角下的受力,找到了曲轴的最大受力工况。在Workbench中完成了静力学分析,得到了曲轴在各气缸发火时的应力和位移分布情况,其最大应力小于曲轴材料的屈服极限。采用有限元法分析了曲轴的安全系数,校核了曲轴的疲劳强度,曲轴的安全系数符合要求,可为曲轴的设计优化提供参考。In this paper,SolidWorks is used to establish the piston crankshaft assembly model,analyze and calculate the stress of the crankshaft at each torsion angle,and find out the maximum stress condition of the crankshaft.Static analysis is completed in Workbench to obtain the stress and displacement distribution of the crankshaft during firing in each cylinder.Its maximum stress is less than the yield limit of the crankshaft material.The safety factor of crankshaft is analyzed by finite element method,and the fatigue strength of crankshaft is checked.It is shown that the safety factor of crankshaft meet the requirements.It provides reference for design optimization of crankshaft.

关 键 词：曲轴 强度分析 疲劳分析 ANSYS WORKBENCH 

分 类 号：TP391.7[自动化与计算机技术—计算机应用技术]