Nutation damper for a high-speed spinning body

Details Nutation damper for a high-speed spinning body Nutation damper for a high-speed spinning body

1988-07-21

1990-01-09

Kashnikow, Andres

Brakes

Inertia of damping mass dissipates motion

188268, 74574, F16F 1516

Patent

active

048921742

ABSTRACT:
The present invention provides a nutation damper having a hollow ring-shaped container installed concentrically to the axis of spin of a spinning body, with a viscous fluid sealed inside, and partially filling the container so as to leave a gap. The volume of the viscous fluid is determined as less than or equal to 1/2 of the volume enclosed by the outer wall of the container. It can provide a nutation damper of simple construction which can damp nutation arising in high-speed spinning bodies and allow these spinning bodies to spin stably.

REFERENCES:
patent: 2403478 (1946-07-01), Burnat
patent: 3716206 (1973-02-01), Lynch et al.
Ehrich, F. F. (1967), The Influence of Trapper Fluids on High Speed Rotor Vibration, Trans. ASME., vol. 89, Ser. B, No. 4, pp. 806-812.
Wolf, J. A. Jr., (1968), Whirl Dynamics of a Rotor Partially Filled with Liquid, Trans. ASME., vol. 35, Ser. E, No. 4, pp. 676-682.

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