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Document IIF

Compresseur frigorifique assujetti à des charges à répétition : conception vis-à-vis de la fiabilité et étude de cas.

Reliability design and case study of a refrigerator compressor subjected to repetitive loads.

Auteurs : WOO S. W., PECHT M., O'NEAL D. L.

Type d'article : Article, Article de la RIF

Résumé

A newly designed crankshaft of a compressor for a side-by-side refrigerator was studied. Using mass and energy conservation balances, a variety of compressor loads typically found in a refrigeration cycle were analyzed. The laboratory failure modes and mechanisms were compressor locking and crankshaft wear. These were similar to those of the failed samples in the field. Failure analysis, accelerated life testing, and corrective actions were used to identify the key reliability parameters. The design parameters of the crankshaft included the hole locations and the groove of the crankshaft used for oil lubrication, crankshaft hardness, and thrust washer interference. Based on the analysis and design changes, the B1 life of the new design is now over ten years with a yearly failure rate of 0.01 percent. A five step procedure is recommended for parts design.

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Format PDF

Pages : 478-486

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    20 €

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Détails

  • Titre original : Reliability design and case study of a refrigerator compressor subjected to repetitive loads.
  • Identifiant de la fiche : 2009-0575
  • Langues : Anglais
  • Source : International Journal of Refrigeration - Revue Internationale du Froid - vol. 32 - n. 3
  • Date d'édition : 05/2009

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