0
research-article

EXPERIMENTAL AND THEORETICAL ROTORDYNAMIC COEFFICIENTS OF SMOOTH AND ROUND-HOLE PATTERN WATER FED ANNULAR SEALS

[+] Author and Article Information
Pascal Jolly

Institut PPRIME, CNRS-University of Poitiers-ENSMA, Département Génie Mécanique et Systèmes Complexes, SP2MI − Téléport 2, 11 Boulevard Marie et Pierre Curie, F86962 FUTUROSCOPE CHASSENEUIL Cedex
pascal.jolly@univ-poitiers.fr

Mihai Arghir

Institut PPRIME, CNRS-University of Poitiers-ENSMA, Département Génie Mécanique et Systèmes Complexes, SP2MI − Téléport 2, 11 Boulevard Marie et Pierre Curie, F86962 FUTUROSCOPE CHASSENEUIL Cedex
mihai.arghir@univ-poitiers.fr

Olivier Bonneau

Institut PPRIME, CNRS-University of Poitiers-ENSMA, Département Génie Mécanique et Systèmes Complexes, SP2MI − Téléport 2, 11 Boulevard Marie et Pierre Curie, F86962 FUTUROSCOPE CHASSENEUIL Cedex
olivier.bonneau@univ-poitiers.fr

Mohamed-Amine Hassini

EDF Lab Paris-Saclay, Département AMA – Bureau 02BC.21, 7 boulevard Gaspard Monge, F91120 PALAISEAU
mohamed-amine.hassini@edf.fr

1Corresponding author.

ASME doi:10.1115/1.4040177 History: Received March 15, 2018; Revised April 14, 2018

Abstract

The present work presents the comparison between experimental and theoretical results obtained for three straight annular seals. One of the annular seals has smooth rotor and stator while the others have a textured stator. The textures are equally spaced shallow round holes, with two different depths. The experimental results were obtained on a test rig dedicated to the identification of the dynamic coefficients of high Reynolds bearings and annular seals. The test rig uses hot water (<50°C) as a working fluid. Dynamic excitations imposed by piezoelectric shakers to the rotor enable the identification of dynamic coefficients via complex impedances. Theoretical results compared with experimental findings were obtained by numerically solving the "Bulk Flow" equations (film thickness averaged equations dominated by inertia effects). The numerical model was extensively validated for smooth annular seals but is less confident for textured surfaces. The present comparisons between experimental and numerical results enable to estimate the accuracy of the numerical model employed for the textured seals.

Copyright (c) 2018 by ASME
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