Bearing having anisotropic stiffness

Details Bearing having anisotropic stiffness Bearing having anisotropic stiffness

1985-03-22

1987-05-26

Levy, Stuart S.

Bearings

Rotary bearing

Plain bearing

384310, 384428, F16C 2702, F16C 2704, F16C 2706

Patent

active

046681086

ABSTRACT:
An anisotropic bearing support for a high-speed rotor includes at least two support devices having different values of stiffness. The two support devices act at substantially the same point on the perimeter of the rotor along radial directions which are angularly spaced apart from each other. The resulting anisotropic bearing support reduces the incidence and severity of rotor vibration and improves rotor stability.

REFERENCES:
patent: 331311 (1885-12-01), Marquardt
patent: 1664880 (1928-04-01), Flintermann
patent: 1919489 (1933-07-01), Treschow
patent: 2363260 (1944-11-01), Peskin
patent: 3015523 (1962-01-01), Semar
J. C. Nicholas et al., "The Influence of Tilting Pad Bearing Characteristics . . . " ASME Spec. Publ. Topics in Fluid-Film Bearing System Design and Optimization, 1978, pp. 55-78.
W. Kellenberger, "The Stability of High-Speed Shafts Supported by Anisotropic Bearings . . . " The Brown Boveri Review, No. 11/12, Nov./Dec. 1963, pp. 756-766.

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