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Theoretical approach to labyrinth seal forces - cross-coupled stiffness of a straight-through labyrinth sealTwo kinds of three dimensional flows in a labyrinth seal, a jet flow and a core flow, are considered and theoretical equations are set up concerning the motion of each flow. The pressure distribution within the labyrinth is calculated, when the rotor shaft makes a small displacement from the center line of the casing, keeping parallel with it. The theoretical values of cross coupled stiffness obtained by integrating the pressure under different labyrinth geometries and operating conditions through these formulas are compared with the experimental data.
Document ID
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Kameoka, T.
(Kobe Steel Ltd.)
Abe, T.
(Kobe Steel Ltd.)
Fujikawa, T.
(Kobe Steel Ltd.)
Date Acquired
August 12, 2013
Publication Date
December 1, 1984
Publication Information
Publication: NASA. Lewis Research Center Rotordynamic Instability Problems in High-Performance Turbomachinery
Subject Category
Mechanical Engineering
Accession Number
Distribution Limits
Work of the US Gov. Public Use Permitted.
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