TECHNICAL PAPERS: Gas Turbines: Structures and Dynamics

Transient Rotordynamic Modeling of Rolling Element Bearing Systems

[+] Author and Article Information
A. Liew, N. Feng, E. J. Hahn

School of Mechanical and Manufacturing Engineering, The University of New South Wales, Sydney, NSW 2052, Australia

J. Eng. Gas Turbines Power 124(4), 984-991 (Sep 24, 2002) (8 pages) doi:10.1115/1.1479337 History: Received December 01, 2000; Revised March 01, 2001; Online September 24, 2002
Copyright © 2002 by ASME
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Grahic Jump Location
5DOF model coordinate systems
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Effect of inertia on peak-to-peak response
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Effect of inertia on bearing orbits
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Two solutions at 18,000 rpm (5DOF model)
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Lumped mass model of test rig
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Peak-to-peak response 19.5 N preload
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Peak-to-peak response 100 N preload
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Orbits at 18,000 rpm with 19.5 N preload
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Orbits at 18,000 rpm with 100 N preload
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Orbits at 18,000 rpm with 100 N preload, 2DOF with and without inertia
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Orbits at 18,000 rpm with 100 N preload, 5DOF with and without inertia
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Computation time comparison



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