王俊然1,2，程市1,2，曾超1,2，刘伦伦1,2，沈琳清1,2，谢永胜1,2
1.内燃机可靠性国家重点实验室，山东潍坊261061；2.潍柴动力股份有限公司，山东潍坊261061
摘要：为保证发动机吊装的安全性，建立发动机吊耳结构有限元模型，针对发动机垂直起吊和斜拉起吊2种工况，提出不同的吊耳受力分解方法，并进行有限元仿真分析，结果表明垂直起吊工况吊耳所受最大应力小于斜拉起吊工况。对比斜拉工况下发动机吊耳所受应力的仿真值与测试值，相对误差为8%左右，在可接受范围内，证实发动机吊耳有限元仿真方法的有效性。
关键词：发动机吊耳；斜拉工况；垂直工况；有限元分析
Abstract:Taking the lifting lug of an engine as the research object, the finite element model of the structure of the engine lifting lug is established, and the two working conditions of the engine: vertical lifting and slope lifting are considered. Different stress decomposition methods of the lifting lug are put forward, and the finite element simulation analysis is carried out. It is concluded that the vertical lifting condition is better than the oblique pulling lifting condition. The relative error is about 8% by comparing the simulation and the test of the stress on the engine lug under the cablestayed condition, which proves the effectiveness of the finite element simulation method for the engine lifting lug.
Keywords:engine lug; slope lifting; vertical lifting; finite element analysis
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