Journal of Applied Reliability (한국신뢰성학회지:신뢰성응용연구)

The Korean Reliability Society (한국신뢰성학회)
권호 표지

Reliability Evaluation of Hydrostatic Bearing Ball Joint

정압 베어링 볼 조인트의 신뢰성 향상

  • Jung, Dong-Soo (Reliability Assessment Center, Korea Institute of Machinery & Materials) ;
  • Park, Jong-Won (Reliability Assessment Center, Korea Institute of Machinery & Materials)
  • 정동수 (한국기계연구원 신뢰성평가센터) ;
  • 박종원 (한국기계연구원 신뢰성평가센터)
  • Received : 2012.06.17
  • Accepted : 2012.09.15
  • Published : 2012.09.25
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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

References

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