Accelerated Testing in Product Development (加速试验在产品开发中的运用)

Loon Ching Tang
TANG Loon Ching, Professor and Head of ISE Department of the National University of Singapore, obtained his BEng (1st class honours) in Mechanical Engineering, MEng in Industrial Engineering, both from NUS , and MSc and Ph.D degrees from Cornell University in the field of Operations Research with minors in Statistics. He has published more than 90 papers in renowned international journals of more


In product development, some form of reliability testing is used for design release and/or comparing design alternatives. In view of limited lead time and high reliability requirement, these tests are accelerated by testing products at higher stresses or harsher environmental conditions involving higher temperature, voltages and humidity so as to increase the susceptibility of failure. The typical challenge for engineers is to figure out how to design such tests; i.e. the test condition, sample size, etc, so that the results can lead to meaningful analysis, statistically and technically, from which follow-up actions result in reliability improvement. Here, we present a general roadmap in developing an appropriate test plan for new products development and/or design modifications. The roadmap is discussed in the context of 3 real life examples involving miniature hard disk, a systems iron and split unit air-conditioners.

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