废气涡轮增压器涡轮断轴原因分析及优化  

Analysis and Optimization of Turbine Shaft Breakage of Turbocharger

作　　者：邹文鹏 徐昊 周文彦 卞光祥 ZOU Wenpeng;XU Hao;ZHOU Wenyan;BIAN Guangxiang(Weichai Power Yangzhou Diesel Engine Co.,Ltd.,Yangzhou 225009,China;Weichai Power Co.,Ltd.,Weifang 261016,China)

机构地区：[1]潍柴动力扬州柴油机有限责任公司,江苏扬州225009 [2]潍柴动力股份有限公司,山东潍坊261061

出　　处：《内燃机》2022年第2期42-46,共5页Internal Combustion Engines

摘　　要：为解决某轻型柴油机在台架耐久试验中涡轮增压器涡轮断轴的故障,结合试验数据记录,采用材料分析和仿真计算等手段进行研究分析。确认故障原因为涡轮低周疲劳失效,并提出优化结构的方案,在新一轮试验中得到验证。In order to solve the problem of the turbocharger turbine shaft breaking fault in a light-duty diesel engine test,combined with the test data,material analysis and simulation calculations were used to confirm that the cause of the failure was the low-cycle fatigue failure of the turbine,and the optimization was proposed.The scheme of the structure has been verified in a new testing round.

关 键 词：涡轮增压器 低周疲劳 材料分析 仿真计算 

分 类 号：TK427[动力工程及工程热物理—动力机械及工程]