Campus Units

Statistics

Document Type

Article

Publication Version

Published Version

Publication Date

6-2007

Journal or Book Title

Quality Progress

Volume

40

Issue

6

First Page

74

Last Page

76

Abstract

Statistical evidence is often needed to show that a proposed product meets or exceeds its reliability goals. Many times, such evidence must be obtained in a compressed time period. Accelerated use-rate testing might be appropriate in testing other products such as photocopiers, printers, bicycles and laptop computers. A new model motor had been built for use in washing machines. Skilled design engineers used top quality materials and state-of-the-art methods to correct reliability problems on previous designs. They also performed short highly accelerated life tests, subjecting components and a few prototype motors to intensive temperature cycling, vibration and overvoltage conditions to discover, understand and remove potential failure modes. Physical evaluation indicated that a manufacturing defect was the root cause of its four failures. All failed motors, plus a sample of the unfailed ones, were taken apart and evaluated to obtain information to improve future product reliability.

Comments

This article is published as Doganaksoy, N., Hahn, G.J., and, Meeker, W.Q., (2007), Reliability Assessment by Use-Rate Acceleration. Quality Progress 40, June, 74–76. Posted with permission.

Copyright Owner

The Authors and American Society for Quality

Language

en

File Format

application/pdf

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