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Dong Zhang
Zhejiang University of Technology

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Analysis of Impact Fatigue Life for Valve Leaves in Small Hermetic Reciprocating Compressors Dong Zhang; Ming Xu; Jiang-Ping Gu; Yue-Jin Huang; Xi Shen
Indonesian Journal of Electrical Engineering and Computer Science Vol 11, No 12: December 2013
Publisher : Institute of Advanced Engineering and Science

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Abstract

Impact fatigue life of valve leaves has great influence on energy saving performance and lifetime of small hermetic reciprocating compressors. This paper presented a test system that intended to analysis and evaluate of impact fatigue life of valve leaves used in small hermetic reciprocating compressors. Firstly, an incentive system was designed to simulate real work condition for valve leaf. Then, a data acquisition system was built to collect the sound signal while valve leaf was being under test. Simultaneously, the system could control the working state of incentive system so that test could be terminated automatically once fatigue was detected. Finally, fatigue detection system was designed to detect fatigue of valve leaf. Fatigue detection was the key point of this test system. Fast Fourier Transform (FFT) and Wavelet Packet Transform (WPT) were applied to analyze sound signal, both of which were effective in detecting the damage through analyzing. Facts showed that the test system provided a feasible approach to evaluate impact fatigue life for valve leaf manufacturing. DOI: http://dx.doi.org/10.11591/telkomnika.v11i12.3675
Co-Authors Jiang-Ping Gu Ming Xu Xi Shen Yue-Jin Huang