基于CAE的某发动机增压器故障分析及优化  

Analysis and Optimization of A Turbocharger Fault Based on CAE Analysis

作　　者：欧阳彩云 陈友祥 OUYANG Caiyun;CHEN Youxiang(Anhui Jianghuai Automobile Group Co.,Ltd.,Hefei 230000)

机构地区：[1]安徽江淮汽车集团股份有限公司,安徽合肥230000

出　　处：《内燃机》2021年第4期39-41,共3页Internal Combustion Engines

摘　　要：某增压直喷发动机在进行发动机台架可靠性试验过程中,涡轮增压器由于中间体和蜗壳连接抱箍松脱造成失效,通过采用CAE仿真分析手段结合试验测试,对涡轮增压器模态和振动分析并进行发动机台架涡轮增压器振动测试,结果表明涡轮增压器中间体抱箍松脱是由于涡轮增压器模态低引起共振造成的。通过对涡轮增压器和排气系统进行优化设计,整改后通过了可靠性试验。In the process of engine bench reliability test of a turbocharger direct injection engine,the turbocharger failed due to the loosening of intermediate collar and volute connection.Through CAE simulation analysis and test,the mode and vibration of the turbocharger were analyzed and the vibration test of the turbocharger was carried out.The results show that the loosening of intermediate collar of the turbocharger is caused by the low resonance of the turbocharger mode.Through the optimization design of turbocharger and exhaust system,the reliability test is passed after rectification.

关 键 词：涡轮增压器CAE 振动模态 

分 类 号：TK407[动力工程及工程热物理—动力机械及工程]