Accession Number:

ADA139468

Title:

Component Endurance.

Descriptive Note:

Final rept. Jun 74-Jun 75.

Corporate Author:

OKLAHOMA STATE UNIV STILLWATER FLUID POWER RESEARCH CENTER

Personal Author(s):

Report Date:

1975-06-01

Pagination or Media Count:

48.0

Abstract:

The purpose of the Oklahoma State UniversityU.S. Army Mobility Equipment Research and Development Center Program is to provide the military tools for the scientific appraisal of fluid power systems. The activities of the third year of the systems program are a continuation of the efforts of the previous years and make full use of the preceding program. This is the final report for the Component Endurance project. The purpose of this report is to discuss the results of the Hydraulic Component Endurance Study. This study consisted of three phases 1 The Acquisition of Component Fatigue Data from Industry, 2 The Acquisition of Experimental Fatigue Data on Laboratory Specimens, and 3 The correlations of available test data to determine if the time at pressure during hydraulic component fatigue tests has a significant effect on component endurance life. The results show, with 99.5 confidence, that decreasing the time at pressure during component fatigue tests increases the mean component cycle life by a significant amount for cycle lives greater than 10,000 cycles. It is also shown that the increase in component cycle life due to decreasing the time at pressure is more pronounced at high cycle lives. Author

Subject Categories:

  • Hydraulic and Pneumatic Equipment

Distribution Statement:

APPROVED FOR PUBLIC RELEASE