Accelerated Life Test Model for Life Prediction of Piston Assemblies in Hydraulic Pump and Motor

Abstract:

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The safety factor of hydraulic piston pumps and motors shows a tendency to decrease due to high pressurization, high speed and low weight/volume realization to enhance the output density. Therefore, more effective test models are necessary to predict the exact life. The sensitive parameters in the endurance life test are speed, pressure and temperature, and failure production increases in proportion to the operating time. In this research, the authors propose a combined accelerated life test model using the analysis method of the combined accelerated life test results of piston-shoe assemblies by simultaneously applying high speed, high pressure and high temperature in accordance with the variation in speed, pressure and temperature in order to reduce the life test time.

Info:

Periodical:

Key Engineering Materials (Volumes 326-328)

Edited by:

Soon-Bok Lee and Yun-Jae Kim

Pages:

649-652

DOI:

10.4028/www.scientific.net/KEM.326-328.649

Citation:

Y.B. Lee, H.E. Kim, Y.C. Yoo, J.H. Park, "Accelerated Life Test Model for Life Prediction of Piston Assemblies in Hydraulic Pump and Motor", Key Engineering Materials, Vols. 326-328, pp. 649-652, 2006

Online since:

December 2006

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Price:

$35.00

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