某发动机机油标尺管开裂原因及对策分析  

The Failure Analysis and Countermeasure Study of Oil Charging Tube in Engine Bench Test

作　　者：吴江 吴珍珍[2] 李方贵 WU Jiang;WU Zhen-zhen;LI Fang-gui(不详)

机构地区：[1]广汽三菱汽车有限公司,长沙410000 [2]湖南女子学院,长沙410004

出　　处：《内燃机与配件》2021年第3期60-61,共2页Internal Combustion Engine & Parts

基　　金：湖南省教育厅科学研究项目(No.17C0797)。

摘　　要：以某发动机机油标尺管为研究对象,针对其台架耐久试验中产生的疲劳裂纹,基于其断口形貌初步确定裂纹源,再通过ABAQUS和FEMFAT软件进行裂纹源应力及寿命分析,为后样件试作和台架试验验证提供优化方案,有效节省了对策验证的周期和成本,同时也通过台架试验验证了有限元分析模型和计算方法的可靠性和有效性。As for the fatigue crack of engine oil charging pipe in vibration bench test,the initial source was identified based on fracture appearance,and then the finite element analysis was conducted with the software of ABAQUS and FEMFAT in order to find the optimized countermeasure for producing and validation afterwards,including the stress and fatigue lifetime prediction,which can obviously reduce the leading time and cost.On the other hand,the test result can also validate the reliability and effectiveness of our FEM model and simulation method.

关 键 词：机油标尺管 开裂 应力 疲劳寿命 

分 类 号：U464.137[机械工程—车辆工程]