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  • 刘鹏飞,韩国强,李颂,刘文奇,王彦斌.某涡轮增压器涡轮叶片断裂故障分析及改进[J].柴油机,2021,43(5):50-53.    [点击复制]
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某涡轮增压器涡轮叶片断裂故障分析及改进
刘鹏飞,韩国强,李颂,刘文奇,王彦斌
0
大同北方天力增压技术有限公司,山西 大同 037036
摘要:针对某涡轮增压器涡轮叶片断裂问题,基于ANSYS有限元软件对该涡轮进行强度分析和振动特性分析。结果表明:该涡轮一阶自振频率较低,一阶倍频比不满足设计要求,共振导致涡轮叶片断裂。在此基础上对涡轮整体结构进行了优化,优化后涡轮叶片一阶自振频率得到提升,叶片断裂问题得到解决。
关键词:  涡轮增压器;涡轮叶片;断裂;自振频率
Failure Analysis and Improvement of a Fractured TurbineBlade of a Turbocharger
Liu Pengfei,Han Guoqiang,Li Song,Liu Wenqi,Wang Yanbin
Datong North Great Power Turbocharging Technology Co.,Ltd.,Shanxi Datong 037036
Abstract:Aiming at the fractured turbine blade of a turbocharger, the strength analysis and vibration characteristic analysis of the turbine was carried out by using ANSYS finite element software. The results show that the first-order natural frequency of the turbine is low, the first-order multiple frequency ratio does not meet the design requirements, and resonance leads to turbine blade fracture. On this basis, the overall structure of the turbine was optimized. After optimization, the first-order natural frequency of the turbine blade was improved, and the blade fracture problem was solved.
Key words:  turbocharger; turbine blade; fracture; natural frequency