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Annular honeycomb seals: Test results for leakage and rotordynamic coefficients - Comparisons to labyrinth and smooth configurationsTest results are presented for leakage and rotordynamic coefficients for seven honeycomb seals. All seals have the same radius, length, and clearance; however, the cell depths and diameters are varied. Rotordynamic data, which are presented, consist of the direct and cross-coupled stiffness coefficients and the direct damping coefficients. The rotordynamic-coefficient data show a considerable sensitivity to changes in cell dimensions; however, no clear trends are identifiable. Comparisons of test data for the honeycomb seals with labyrinth and smooth annular seals shows the honeycomb seal had the best sealing (minimum leakage) performance, followed in order by the labyrinth and smooth seals. For prerotated fluids entering the seal, in the direction of shaft rotation, the honeycomb seal has the best rotordynamic stability followed in order by the labyrinth and smooth. For no prerotation, or fluid prerotation against shaft rotation, the labyrinth seal has the best rotordynamic stability followed in order by the smooth and honeycomb seals.
Document ID
19890047423
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Childs, D.
(Texas A&M Univ. College Station, TX, United States)
Elrod, D.
(Texas A&M Univ. College Station, TX, United States)
Hale, K.
(Texas A & M University College Station, United States)
Date Acquired
August 14, 2013
Publication Date
April 1, 1989
Publication Information
Publication: ASME, Transactions, Journal of Tribology
Volume: 111
ISSN: 0742-4787
Subject Category
Mechanical Engineering
Report/Patent Number
ASME PAPER 88-TRIB-35
Accession Number
89A34794
Funding Number(s)
CONTRACT_GRANT: NAG3-181
CONTRACT_GRANT: F49620-82-K-0033
Distribution Limits
Public
Copyright
Other

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