• CN: 11-2187/TH
  • ISSN: 0577-6686

›› 2002, Vol. 38 ›› Issue (9): 43-46.

• Article • Previous Articles     Next Articles

REASON OF ANGULAR WOBBLE SELF-EXCITED VIBRATION AND HALF FREQUENCY CHARACTERISTIC FOR GAS FILM FACE SEAL

Xu Wanfu;Liu Yuchuan;Wang Zhili;Shen Xinmin   

  1. Shenyang Institute of Technology Tsinghua University Beijing University of Aeronautics and Astronautics
  • Published:2002-09-15

Abstract: The angular wobbly self-excited vibration(Aws-EV) with the half-frequency of primary ring for fluids film face seal is intrinsic property, being similar to “half-frequency whirl” in journal bearings of hydrodynamic lubrication. Based on the continuity principle of fluids flow, a mechanism of explaining the generation of Aws-EV and the reason of the half-frequency characteristic is described.

Key words: Angular wobbly self-excited vibration, Gas film face seal, Stability

CLC Number: