姜楠1,2, 刘毅1, 龚旺1, 唐灵聪1

1.宁波吉利罗佑发动机零部件有限公司, 浙江宁波315336；2.浙江吉利动力总成有限公司, 浙江宁波315800

摘要：分析计算某型号发动机缸盖及工装的应力与局部位移，基于HyperMesh软件建立缸盖及工装的仿真模型，使用ABAQUS软件进行静力学计算，对处于夹紧状态下的发动机缸盖进行4个典型工位的加工工况分析计算,得出工件加工位置最大位移与工装所受最大应力。通过强度和位移校核,最终结果满足缸盖的加工需求，为工艺制定提供了有效的数据支持。

关键词：缸盖；应力；位移；静力学计算

Abstract:An analysis of the stress and displacement for an engine cylinder head and fixture is carried out. The finite element models of the cylinder head and fixture are built by HyperMesh, and the static stress is calculated by ABAQUS. Four types of machining conditions of the engine cylinder head under the same clamp clamping condition are calculated and analysed. Based on the comparison of the maximum stress and maximum displacement for the fixture during the machining processing of the cylinder head, the part maximum displacement of the machining position and the maximum stress on the fixture are analysed. The results provide useful data for machining process development.

Keywords:cylinder head；stress；displacement；static calculation