A Study on the Accelerated Life Cycle Test Method of the Motor for Home Appliances by Using Acceleration Factor

Authors: Youn-Sung Kim, Mi-Sung Kim, Jae-Kun Lee

Abstract:

This paper deals with the accelerated life cycle test method of the motor for home appliances that demand high reliability. Life Cycle of parts in home appliances also should be 10 years because life cycle of the home appliances such as washing machine, refrigerator, TV is at least 10 years. In case of washing machine, the life cycle test method of motor is advanced for 3000 cycle test (1cycle = 2hours). However, 3000 cycle test incurs loss for the time and cost. Objectives of this study are to reduce the life cycle test time and the number of test samples, which could be realized by using acceleration factor for the test time and reduction factor for the number of sample.

Keywords: Accelerated life cycle test, motor reliability test, motor for washing machine, BLDC motor.

Digital Object Identifier (DOI): doi.org/10.5281/zenodo.1124455

References:

[1] T. J. E. Miller and J. R. Hendershot Jr., “Brushless Permanent Magnet and Reluctance Motor Drives,” Oxford, U.K., 1989.
[2] G. R. Slemon and X. Liu, “Modeling and design optimization of permanent magnet motors,” Elect. Mach. Power syst., Vol. 101 pp. 71-92, 1992.
[3] D. S. Ryu, “Improving Reliability and Quality for Product Success,” Taylor & Francis Group CRC Press, May. 2012.
[4] William Q. Meeker, “A Comparison of Accelerated Life Test Plans for Weibull and Lognormal Distributions and Type I Censoring,” Technomertics, vol. 26, issue. 2, pp. 157-171, 1984.
[5] Mohamed T. madi, “Multiple step-stress accelerated life test: the tampered failure rate model.” Communications in Statistics - Theory and Methods, vol. 22, issue. 9, pp. 295-306, 1993.
[6] K. P. Yeo, L. C. Tang, “Planning step-stress life-test with a target acceleration-factor.” Reliability IEEE Transactions on, vol. 48, no. 1, pp. 61-67, 1999.
[7] J. M. Seo, “Analysis of Home Appliance Permanent-magnet Machine for Energy Saving,” Korean society for new and renewable energy, pp.140, June. 2015.