0
RESEARCH PAPERS

Experimental Study of Dynamic Fluid Forces and Moments for a Long Annular Seal

[+] Author and Article Information
Yuji Kanemori

R&D Department, Torishima Pump Mfg. Co., Ltd., Osaka, 569, Japan

Takuzo Iwatsubo

Faculty of Engineering, Kobe University, Kobe, 657, Japan

J. Tribol 114(4), 773-778 (Oct 01, 1992) (6 pages) doi:10.1115/1.2920947 History: Received July 22, 1991; Revised June 01, 1992; Online June 05, 2008

Abstract

The dynamic fluid reaction forces and moments of a long annular seal were experimentally studied. A new testing apparatus was constructed in order to measure restoring forces and moments caused by the cylindrical whirling motion of a rotor. Experiments were conducted at various rotor speeds, whirling speeds, and with different pressure drops across the long seal. The rotor and outer cylinder were set in concentric alignment. The tangential force component was derived from the measured fluid force in order to determine the unstable threshold. Moments developed by the long seal were also obtained. Restoring forces and moments were expressed as stiffness, damping coefficients and added mass. These coefficients were then compared with Childs’ theory and found to be compatible.

Copyright © 1992 by The American Society of Mechanical Engineers
Your Session has timed out. Please sign back in to continue.

References

Figures

Tables

Errata

Discussions

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related Journal Articles
Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In