Fatigue Safety Coefficient Based Mutual Comparison of the Simple Working Regime of Hermetic Compressor Suspension Springs

Abstract:

Compressors suspension made up of helical suspension spring system has a significant importance on the operation of hermetic compressors, considering the aspects of noise and vibration. These springs are loaded by harmonic forces very often. High cycles fatigue damage and failure can be found during its service loading. The severity of lading regime has been studied for three typical loading regimes of springs using the fatigue safety factor. The spring fails by fatigue not yielding; infinite life is not predicted. All cases are demonstrated in the Haigh diagram. Finite life is predicted. It has been showed that loading cases with constant mean shear give lowest safety factor than the proportional or constant middle stress regimes.

• Periodical: International Journal of Engineering Research in Africa (Volume 16)
• Pages: 26-37
• DOI: https://doi.org/10.4028/www.scientific.net/JERA.16.26
• Online since: June 2015
• Authors: Tsapi T Kévin*, Bertin D Soh Fotsing, Alexis Kuitche
• Keywords: Fatigue Failure, Helical Spring, Hermetic Compressor, Safety Factor

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