Investigation on Pipeline Failure for Centrifugal Compressor Based on Fluid Induced Oscillation

LI Hong-kun;GUO Cheng;ZHANG Xiao-wen;ZHAO Peng-shi;ZHANG Xue-feng

Journal of Vibration and Shock ›› 2014, Vol. 33 ›› Issue (5) : 37-41.

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PDF(1461 KB)
Journal of Vibration and Shock ›› 2014, Vol. 33 ›› Issue (5) : 37-41.
论文

Investigation on Pipeline Failure for Centrifugal Compressor Based on Fluid Induced Oscillation

  • LI Hong-kun ,GUO Cheng ,ZHANG Xiao-wen ,ZHAO Peng-shi ,ZHANG Xue-feng
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Abstract

The pipeline fatigue by fluid induced oscillation frequently takes place in the large scale centrifugal compressor. This paper investigates the main failure source of centrifugal compressor by fluid induced oscillation analysis. One of pipeline fatigue failure mechanism which could be original from acoustic resonance is investigated. Simulation for the pipeline cavity is analyzed in the test lab. With LMS acoustic finite element method software, the acoustic mode of pipeline is determined. The vibration level will increase typically when the blade passing frequency is the close to the acoustic mode frequency for the reason of acoustic resonance according to experiment analysis. It can give clear demonstration for the pipeline vibration with fluid induced oscillation. A practical centrifugal compressor pipeline vibration control is used to verify the effectiveness by acoustic resonance analysis according to the theory analysis. The research will contribute to development for reduction on centrifugal compressor pipeline damage based on high cycle fatigue.


Key words

Pipeline / Fatigue failure / Fluid induced oscillation / Acoustic modes / Acoustic resonance

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LI Hong-kun;GUO Cheng;ZHANG Xiao-wen;ZHAO Peng-shi;ZHANG Xue-feng. Investigation on Pipeline Failure for Centrifugal Compressor Based on Fluid Induced Oscillation[J]. Journal of Vibration and Shock, 2014, 33(5): 37-41
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