Experimental Study on Static and Dynamic Characteristics of Liquid Annular Convergent-Tapered Damper Seals With Honeycomb Roughness Pattern

[+] Author and Article Information
Satoru Kaneko

Department of Mechanical Engineering, Nagaoka University of Technology, Kamitomioka, Nagaoka, 940-2188, Japan

Takashi Ikeda

Tokyo Electron Kyushu Co., Ltd., Nishiaramachi, Tosu, Saga, 864-0074, Japan

Takuro Saito

Oji Paper Co., Ltd., Ojicho, Tomakomai, Hokkaido, 053-8711, Japan

Shin Ito

NOK Co., Ltd., Shibadaimon, Minato-ku, Tokyo, 105-8585, Japan

J. Tribol 125(3), 592-599 (Jun 19, 2003) (8 pages) doi:10.1115/1.1538621 History: Received May 08, 2002; Revised October 25, 2002; Online June 19, 2003
Copyright © 2003 by ASME
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Schematic view of experimental apparatus
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Geometry of convergent-tapered honeycomb damper seal (cross-sectional view)
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Small whirling motion of rotor about seal center and dynamic fluid-film forces
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Leakage flow rate versus rotor spinning velocity
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Axial pressure distributions in seal clearance at concentric position; ω=0,Ω=0
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Dynamic force coefficients versus ratio of whirling velocity to spinning velocity; ω=1200 rpm: (a) tangential force coefficient; and (b) radial force coefficient.
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Axial distributions of dynamic force components per unit seal length; ω=1200 rpm,Ω=−1500 rpm
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Dynamic coefficients versus rotor spinning velocity: (a) main damping coefficient; (b) cross-coupled damping coefficient; (c) main stiffness coefficient; and (d) cross-coupled stiffness coefficient.
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Dynamic coefficients versus taper parameter; ω=1800 rpm: (a) damping coefficients; and (b) stiffness coefficients.
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Dynamic coefficients versus taper parameter; ω=2400 rpm: (a) damping coefficients; and (b) stiffness coefficients.
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Effective damping coefficient versus rotor spinning velocity




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