Stability of rotors under the combined influence of fluid film bearing characteristics and shaft material damping

Journal Article · Wed Jul 01 00:00:00 EDT 1992 · ASLE Transactions (American Society of Lubrication Engineers); (United States)

DOI:https://doi.org/10.1080/10402009208982158· OSTI ID:6976988

Rajalingham, C; Xistris, G D; Bhat, R B ^[1]

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1. Concordia University, Montreal (Canada)

Fluid film characteristics and shaft material damping form an interesting combination in rotor dynamic applications. Under certain conditions, a rotor which is unstable due to the damping, can be stabilized with the proper choice of fluid film bearings as supports. On the other hand, increasing the material damping in the rotor shaft can attenuate stress fluctuations in the rotors supported by fluid film bearings. The influence of the above combination on the stability of rotor bearing systems is investigated using a Jeffcot rotor with significant material damping and supported by fluid film bearings in the rotor dynamic model. The results indicate that under certain conditions, the interaction of the above two factors can be gainfully utilized in the design of rotor bearing systems. 8 refs.

• OSTI ID: 6976988
• Journal Information: ASLE Transactions (American Society of Lubrication Engineers); (United States), Journal Name: ASLE Transactions (American Society of Lubrication Engineers); (United States) Vol. 35:3; ISSN 0569-8197; ISSN ASLTA
• Country of Publication: United States
• Language: English

Related Subjects

32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
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42 ENGINEERING
420200* -- Engineering-- Facilities
Equipment
& Techniques
BEARINGS
DAMPING
DYNAMICS
FILMS
JOURNAL BEARINGS
MACHINE PARTS
MATERIALS
MECHANICAL VIBRATIONS
MECHANICS
ROTORS
SHAFTS
STABILITY