Analysis of the Result for the Accelerated Life Cycle Test of the Motor for Washing Machine by Using Acceleration Factor

Accelerated life cycle test is applied to various products or components in order to reduce the time of life cycle test in industry. It must be considered for many test conditions according to the product characteristics for the test and the selection of acceleration parameter is especially very important. We have carried out the general life cycle test and the accelerated life cycle test by applying the acceleration factor (AF) considering the characteristics of brushless DC (BLDC) motor for washing machine. The final purpose of this study is to verify the validity by analyzing the results of the general life cycle test and the accelerated life cycle test. It will make it possible to reduce the life test time through the reasonable accelerated life cycle test.

Authors:

• Youn-Sung Kim
• Jin-Ho Jo
• Mi-Sung Kim
• Jae-Kun Lee

Keywords:

• Accelerated life cycle test
• reliability test
• motor for washing machine
• brushless dc motor test.

References:

[1] Luis A. Escobar, William Q. Meeker, “A Review of Accelerated Test Models,” Statistical Science, Vol. 21, No. 4, pp.552-557, 2006.
[2] H. E. Kim, B. J. Sung, “Concept of Korean Reliability Assessment,” Fluid Power Systems Society, Vol. 7, No. 1, pp. 3-8, 2010.
[3] Kie-Hwa Lee, Won-Young Yun, “Accelerated Life Test Design for Vacuum Motors,” Journal Applied Reliability, Vol. 9, No. 1, pp. 1-66, 2009.
[4] Ki-Hoon Yoo, Boo-Hee Park, Ki-Tae Kim, Gi-Young Kim, Dal-Seok Kim, Joong-Soon Jang, Chang-Su Hahn and Han-Sam Cho, “Reliability Tests for BLDC Motors Used in Green-Cars,” Journal Applied Reliability, Vol. 11, No. 1, pp. 97-110, 2011.
[5] Young-Il Kwon, “Economic Design of Zero-Failure Reliability Qualification Test,” Journal of the Korean Society for Quality Management, Vol. 39, No.1, pp.71-77, 2011.