Stability of a Rigid Rotor Supported on Flexible Oil Journal Bearings | Zendy

B. C. Majumdar | Zendy; D. E. Brewe | Zendy; M. M. Khonsari | Zendy

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Stability of a Rigid Rotor Supported on Flexible Oil Journal Bearings

Author(s) -

B. C. Majumdar,

D. E. Brewe,

M. M. Khonsari

Publication year - 1988

Publication title -

journal of tribology

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.498

H-Index - 84

eISSN - 1528-8897

pISSN - 0742-4787

DOI - 10.1115/1.3261562

Subject(s) - elasticity (physics) , bearing (navigation) , stiffness , lubricant , eccentricity (behavior) , materials science , rigid rotor , stability (learning theory) , viscosity , structural engineering , rotor (electric) , geotechnical engineering , engineering , composite material , mechanical engineering , computer science , artificial intelligence , machine learning , political science , law

This investigation deals with the stability characteristics of oil journal bearings, including the effect of elastic distortions in the bearing liner. Graphical results are presented for (1) steady-state load, (2) stiffness and damping coefficients, and (3) the stability. These results are given for various slenderness ratios, eccentricity ratios, and elasticity parameters. The lubricant is first assumed to be isoviscous. The analysis is then extended to the case of a pressure-dependent viscosity. It has been found that stability decreases with increase of the elasticity parameter of the bearing liner for heavily loaded bearings.

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