Vibration Analysis on Rotating Failure of Turbo Volute for Diesel Engine

KONG Xiangxin; LIU Fengchun; JI Shude; LIU Yuqiang; YIN Tianzuo; DENG Chunlong; GAO Yunfeng; LIU Zhigang

Vehicle Engine ›› 2020, Vol. 0 ›› Issue (2) : 49-54.

KONG Xiangxin,LIU Fengchun,JI Shude,LIU Yuqiang,YIN Tianzuo,DENG Chunlong,GAO Yunfeng,LIU Zhigang

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Abstract

For the rotating failure of turbo volute for diesel engine that occurred frequently in the test, the research were carried out based on vibration analysis. The test bench system of diesel engine that could be used as the analysis reference was obtained by vibration test and characteristic analysis of engine. The contact stress in the turbo was identified as the root cause of rotating failure through further local vibration test and characteristic analysis, which was caused by the asynchronous rotating between volute tube and intake tube. The scheme of adjusting the material of volute fixing plate and the tightening torque of its bolt was put forward and verified by the experiment. The results show that the rotating failure of turbo volute can be well solved with the vibration analysis based method.

Key words

diesel engine / turbocharger / vibration analysis / fault diagnosis / contact stress

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KONG Xiangxin,LIU Fengchun,JI Shude,LIU Yuqiang,YIN Tianzuo,DENG Chunlong,GAO Yunfeng,LIU Zhigang. Vibration Analysis on Rotating Failure of Turbo Volute for Diesel Engine[J]. Vehicle Engine. 2020, 0(2): 49-54