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.
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ASME 2007 International Mechanical Engineering Congress and Exposition
November 11–15, 2007
Seattle, Washington, USA
Conference Sponsors:
- ASME
ISBN:
0-7918-4300-9
PROCEEDINGS PAPER
Reliability Design and Case Study of a Refrigerator Compressor Subjected to Repetitive Loads Available to Purchase
Seong-Woo Woo,
Seong-Woo Woo
Samsung Electronics Company, Ltd., Gwangju, Korea
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Dennis L. O’Neal,
Dennis L. O’Neal
Texas A&M University, College Station, TX
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Yongchan Kim
Yongchan Kim
Korea University, Seoul, Korea
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Seong-Woo Woo
Samsung Electronics Company, Ltd., Gwangju, Korea
Dennis L. O’Neal
Texas A&M University, College Station, TX
Yongchan Kim
Korea University, Seoul, Korea
Paper No:
IMECE2007-41035, pp. 455-460; 6 pages
Published Online:
May 22, 2009
Citation
Woo, S, O’Neal, DL, & Kim, Y. "Reliability Design and Case Study of a Refrigerator Compressor Subjected to Repetitive Loads." Proceedings of the ASME 2007 International Mechanical Engineering Congress and Exposition. Volume 6: Energy Systems: Analysis, Thermodynamics and Sustainability. Seattle, Washington, USA. November 11–15, 2007. pp. 455-460. ASME. https://doi.org/10.1115/IMECE2007-41035
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