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

Seong Woo Woo, Dennis L. O'Neal, Yongchan Kim

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

A newly designed crank shaft of a compressor for a side-by-side (SBS) refrigerator was studied. Using standard 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 crank shaft wear. These were similar to those of the failed samples in the field. Failure analysis, accelerating life testing (ALT), and corrective action were used to identify the key reliability parameters and their level. The design parameters of the crank shaft included the hole locations and the groove of the crank shaft used for oil lubrication, crank shaft hardness, and thrust washer interference. Based on the analysis and design changes, the B1 life of the new design is now over 10 years with a yearly failure rate of 0.01 percent. A procedure was recommended for refrigerator parts design which included five steps.

Original languageEnglish
Title of host publicationProceedings of the ASME International Mechanical Engineering Congress and Exposition, IMECE 2007
Pages455-460
Number of pages6
DOIs
Publication statusPublished - 2008
EventASME International Mechanical Engineering Congress and Exposition, IMECE 2007 - Seattle, WA, United States
Duration: 2007 Nov 112007 Nov 15

Publication series

NameASME International Mechanical Engineering Congress and Exposition, Proceedings
Volume6

Other

OtherASME International Mechanical Engineering Congress and Exposition, IMECE 2007
CountryUnited States
CitySeattle, WA
Period07/11/1107/11/15

ASJC Scopus subject areas

  • Engineering(all)

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  • Cite this

    Woo, S. W., O'Neal, D. L., & Kim, Y. (2008). Reliability design and case study of a refrigerator compressor subjected to repetitive loads. In Proceedings of the ASME International Mechanical Engineering Congress and Exposition, IMECE 2007 (pp. 455-460). (ASME International Mechanical Engineering Congress and Exposition, Proceedings; Vol. 6). https://doi.org/10.1115/IMECE2007-41035