Reduced Weight Design of a Flexible Rotor with Ball Bearing Stiffness Characteristics Varying with Rotational Speed and Load

[+] Author and Article Information
Dong-Soo Lee

Engine R&D Center, Engine and Material Division, Daewoo Heavy Industries LTD., Inchon 401-010, South Korea

Dong-Hoon Choi

Dept. of Mechanical Design and Production Engineering, Hanyang University, Seoul 133-791, South Korea

J. Vib. Acoust 122(3), 203-208 (Feb 01, 2000) (6 pages) doi:10.1115/1.1303066 History: Received February 01, 1997; Revised February 01, 2000
Copyright © 2000 by ASME
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Loads and displacements of a ball bearing
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Flow chart for ball bearing analysis
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Overall procedure of the optimum design program
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A multi-stepped rotor-bearing system
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Stiffness characteristics of the ball bearing (P=1500 N)
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Whirl speed maps at the initial and optimum design
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Comparison of the whirl speed analysis results with speed dependent and constant bearing stiffnesses (P=1500 N)



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