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Reliability Evaluation of Hydrostatic Bearing Ball Joint  

Jung, Dong-Soo (Reliability Assessment Center, Korea Institute of Machinery & Materials)
Park, Jong-Won (Reliability Assessment Center, Korea Institute of Machinery & Materials)
Publication Information
Journal of Applied Reliability / v.12, no.3, 2012 , pp. 165-176 More about this Journal
Abstract
Hydrostatic bearing improves performance and life time of a product by avoiding solid friction and reducing viscosity friction with the help of creating pressure equilibrium between two faces doing relative motion. This study suggests failure analysis and test evaluation for a ball joint that adopts the hydrostatic bearing and introduces the entire process to improve reliability of the product by design improvement. A typical failure is growth of friction torque by solid friction, and its failure cause is determined and the improvement is proposed. Finally, reliability improvement is established by analysis of the results of before and after acceleration test.
Keywords
Hydrostatic Bearing; Ball Joint; Viscosity Friction; Reliability; Acceleration Test; Qualification Life;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
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