Journal of Mechanical Science and Technology

The Korean Society of Mechanical Engineers (대한기계학회)
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A Rotordynamic Analysis of Circumferentially-Grooved Pump Seals Based on a Three-Control-Volume Theory

  • Ha, Tae-Woong (Mechanical Design & Production Engineering Department, Kyung-won University) ;
  • Lee, An-Sung (Rotor Dynamics Group, Korea Institute of Machinery and Materials)
  • Published : 2000.03.01
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Abstract

In this paper the leakage prediction and rotordynamic analysis of an annular seal with a smooth rotor and circumferentially grooved stator are performed based on a three-controlvolume theory. The present analysis is validated by comparing with the experimental data of Iwatsubo and Sheng and theoretical results suggested by Marquette and Childs. For the leakage prediction the present analysis shows a good agreement with Marquette and Childs' result and a qualitation agreement with Iwatsubo and Shengs' experimental data. Direct and cross-coupled stiffness coefficients show closer agreement with the experimental values than those of Marquette and Childs. However, direct damping coefficient shows greater discrepancy from the experimental value than Marquette and Childs'.

Keywords

References

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