Analysis of Impact Fatigue Life for Valve Leaves in Small Hermetic Reciprocating Compressors

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 Full Text: PDF

[1]  Liu Jinlian,et al.  Fan Fault Diagnosis Based on Wavelet Packet and Sample Entropy , 2013 .

[2]  C. Burrus,et al.  Introduction to Wavelets and Wavelet Transforms: A Primer , 1997 .

[3]  Yu-Jin Hwang,et al.  Performance Evaluation of the Energy Efficiency of Crank-Driven Compressor and Linear Compressor for a Household Refrigerator , 2010 .

[4]  Jairo Aparecido Martins,et al.  Analysis of Set of Valve from Hermetic Reciprocating Compressors Under Accelerated Life Test (ALT) by Alternative Machine in Replacement of the Usual Compressor Bench Test , 2008 .

[5]  Hui Li,et al.  Bearing Fault Diagnosis Based on Laplace Wavelet Transform , 2012 .

[6]  Ismail Lazoglu,et al.  An investigation on the impact fatigue characteristics of valve leaves for small hermetic reciprocating compressors in a new automated test system , 2012 .

[7]  K. Loparo,et al.  Online tracking of bearing wear using wavelet packet decomposition and probabilistic modeling : A method for bearing prognostics , 2007 .

[8]  Ismail Lazoglu,et al.  Impact Fatigue Characteristics of Valve Leaves for Small Hermetic Reciprocating Compressors , 2010 .

[9]  Signals and Systems 2 , .

[10]  Chih-Chen Chang,et al.  Structural Damage Assessment Based on Wavelet Packet Transform , 2002 .

[11]  Технология.  Springer Science+Business Media , 2013 .

[12]  Michele Libralato,et al.  Impact Fatigue on Suction Valve Reed: New Experimental Approach , 2004 .

[13]  Javad Poshtan,et al.  Bearing fault detection using wavelet packet transform of induction motor stator current , 2007 .

[14]  Ruqiang Yan,et al.  Wavelets: Theory and Applications for Manufacturing , 2010 .