TECHNICAL PAPERS: Gas Turbines: Structures and Dynamics

Using Guided Balls to Auto-Balance Rotors

[+] Author and Article Information
H. L. Wettergren

Department of Mechanical Engineering, Linköping University, SE-58183 Linköping, Swedene-mail: hakwe@ikp.liu.se

J. Eng. Gas Turbines Power 124(4), 971-975 (Sep 24, 2002) (5 pages) doi:10.1115/1.1479335 History: Received December 01, 2000; Revised March 01, 2001; Online September 24, 2002
Copyright © 2002 by ASME
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Grahic Jump Location
Rotor with balancing ring
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Amount of ball damping to avoid instability
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Critical ball damping and the stability threshold when one guided ball is used
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Ball position as a function of time
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Deflection with and without balancing balls as a function of rotational frequency for cball=0.050 Ns/m
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Critical damping and the stability threshold when two guided balls are used
Grahic Jump Location
Ball positions as a function of time




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