TY - GEN
T1 - Reliability design and case study of a refrigerator compressor subjected to repetitive loads
AU - Woo, Seong Woo
AU - O'Neal, Dennis L.
AU - Kim, Yongchan
N1 - Publisher Copyright:
Copyright © 2007 byASME.
PY - 2007
Y1 - 2007
N2 - A newly designed crank shaft of a compressor for a side-byside (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 BB1 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.
AB - A newly designed crank shaft of a compressor for a side-byside (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 BB1 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.
UR - http://www.scopus.com/inward/record.url?scp=84928604905&partnerID=8YFLogxK
U2 - 10.1115/IMECE200741035
DO - 10.1115/IMECE200741035
M3 - Conference contribution
AN - SCOPUS:84928604905
T3 - ASME International Mechanical Engineering Congress and Exposition, Proceedings (IMECE)
SP - 455
EP - 460
BT - Energy Systems
PB - American Society of Mechanical Engineers (ASME)
T2 - ASME 2007 International Mechanical Engineering Congress and Exposition, IMECE 2007
Y2 - 11 November 2007 through 15 November 2007
ER -
