Double-Crossed Step-Stress Accelerated Life Testing for Pneumatic Cylinder

Abstract:

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This paper discusses the principle and method of Double-Crossed Step-Down-Stress Accelerated Life Testing (DCSDS-ALT) for pneumatic cylinders. As to pneumatic cylinder, the step-down-stress testing failure physics can be described as cumulative degradation model. Temperature and frequency are normally chosen as the test stresses. The failure data obtained under DCSDS-ALT testing steps can be converted to those under constant stress testing. And the reliability specifications can be derived accordingly. To compare Double-stress ALTs with traditional constant stress testing shows Double-stress ALTs can meet the accuracy demand. The 5% of average lifetime estimation error and 1.85% of the characteristic lifetime error are very satisfying for pneumatic industrial lifetime prediction.

Info:

Periodical:

Edited by:

Dongye Sun, Wen-Pei Sung and Ran Chen

Pages:

1274-1278

DOI:

10.4028/www.scientific.net/AMM.121-126.1274

Citation:

J. Chen et al., "Double-Crossed Step-Stress Accelerated Life Testing for Pneumatic Cylinder", Applied Mechanics and Materials, Vols. 121-126, pp. 1274-1278, 2012

Online since:

October 2011

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Price:

$35.00

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