发动机增压器蜗壳低周疲劳寿命研究  

Low Cycle Fatigue Life Study of Volute of Engine Supercharger

作　　者：路明 郭小凤 李云涛 Lu Ming;Guo Xiaofeng;Li Yuntao

机构地区：[1]宁波吉利罗佑发动机零部件有限公司,浙江宁波315336

出　　处：《机械制造》2023年第2期25-27,40,共4页Machinery

摘　　要：发动机零部件处于交变载荷工况时,由于温度变化,会产生较大的应力幅值,可能导致低周疲劳开裂。对此,对发动机增压器蜗壳进行低周疲劳寿命研究。在研究中,基于低周疲劳理论,对发动机增压器蜗壳处于冷热冲击试验工况进行瞬态温度场分析,并进行低周疲劳寿命分析,由此得到蜗壳的寿命分布。When engine components is subjected to alternating load condition,large stress amplitude occurs due to temperature changes,which can lead to low cycle fatigue cracking.In this regard,a low cycle fatigue life study was carried out on the volute of the engine supercharger.In the study,based on the low cycle fatigue theory,the transient temperature field analysis of the volute of the engine supercharger in the hot and cold shock test condition was carried out,and the low cycle fatigue life analysis was carried out,so as to obtain the life distribution of the volute.

关 键 词：发动机 增压器 蜗壳 低周疲劳 寿命 

分 类 号：U464.135[机械工程—车辆工程]