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Experimental investigation of time-dependent cavitation in an oscillatory squeeze film

  • Chen Xiaoyang 
  • Meili Sun
  • Wen Wang
  • C. D. Sun
  • Zhiming Zhang
  • Xiaojing Wang
Article
  • 92 Downloads

Abstract

The occurrence of time-dependent cavitation and tensile stress in an oscillatory oil squeeze film were investigated experimentally. The test apparatus was a simple thrust bearing consisting of two parallel circular plates separated by a thin viscous oil film. During the test, one plate was at rest while the other (transparent) oscillated in a direction normal to its surface. This test configuration was chosen to avoid the rotational motion and complicated geometry of a squeeze film journal bearing. The frequency of oscillation was in the range of 5 to 50 Hz and was controlled by an electro-magnetic exciter. The process of cavity formation and its subsequent development was recorded by a high-speed video camera. Concomitant pressure in the oil film was measured both within and without the cavitation region. It was found that both tensile stress and cavities existed in a squeeze film under certain working conditions.

Keywords

dynamically loaded journal bearing squeeze film effect time-dependent cavitation 

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Copyright information

© Science in China Press 2004

Authors and Affiliations

  • Chen Xiaoyang 
    • 1
    • 2
  • Meili Sun
    • 1
    • 2
  • Wen Wang
    • 1
    • 2
  • C. D. Sun
    • 1
    • 2
  • Zhiming Zhang
    • 1
    • 2
  • Xiaojing Wang
    • 1
    • 2
  1. 1.Research Institute of BearingsShanghai UniversityShanghaiChina
  2. 2.Department of Mechanical EngineeringState University of New York at BinghamtonUSA

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