基于有限元法的某柴油机主轴承座孔及主轴瓦变形分析  

Deformation Analysis of Main Bearing Housing Bore and Main Bearing of a Diesel Engine Based on Finite Element Method

作　　者：禹朝帅 王斌 刘世谦 李俊龙[1,2] 邢首辰 YU Chaoshuai;WANG Bin;LIU Shiqian;LI Junlong;XING Shouchen(State Key Laboratory of Power System of Tractor,Luoyang 471039,China;Luoyang Tractor Research Institute Co.,Ltd.,Luoyang 471039,China)

机构地区：[1]拖拉机动力系统国家重点实验室,河南洛阳471039 [2]洛阳拖拉机研究所有限公司,河南洛阳471039

出　　处：《拖拉机与农用运输车》2022年第3期43-47,共5页Tractor & Farm Transporter

基　　金：国家重点研发计划项目(2017YFD0700104)。

摘　　要：以某柴油机主轴承座孔和主轴瓦为研究对象,通过有限元法模拟了机体—主轴承盖装配状态下的镗孔工艺。分别采用两种模拟方法(传统有限元法和轴承座孔节点坐标补偿法)计算主轴承座孔和主轴瓦的变形。结果表明,是否补偿轴承座孔内表面节点坐标,对过盈配合后轴瓦的变形结果影响较大。建议对主轴瓦变形进行计算时,考虑对主轴承座孔进行节点坐标补偿。In this paper,the main bearing housing bore and main bearing of a diesel engine were studied,and the main bearing boring process in assembly by a finite element method.Two simulation methods(traditional finite element method and bearing housing bore node coordinate compensation method)were used to calculate the deformation of main bearing housing bore and main bearing.The results show that whether to compensate the nodes coordinate on the inner surface of bearing housing bore has great influence on the deformation of main bearing after interference fit.It is suggested that nodes coordinate compensation should be considered for main bearing housing bore when calculating the deformation of main bearing.

关 键 词：有限元法 主轴承座孔 主轴瓦 变形 镗孔 

分 类 号：TK422[动力工程及工程热物理—动力机械及工程]