Apparatus for active reduction of vertical vibrations of a vibra

Details Apparatus for active reduction of vertical vibrations of a vibra Apparatus for active reduction of vertical vibrations of a vibra

1977-07-08

1979-08-21

Halvosa, George E. A.

Spring devices

Vehicle

Comprising compressible fluid

267126, 267DIG1, 280714, F16F 902

Patent

active

041650662

ABSTRACT:
With the purpose of attaining effective reduction of vertical vibrations, there is arranged in vertical direction between the vibrating mass and the excitation source one or more little-damped springing systems which include compressed-air springing elements provided with a connecting pipe for the inlet or outlet of compressed air, whereby active intervention in the functioning of base springing systems is made possible. The active intervention concerns the vibrating of the mass in the resonance of the systems, and consequently, these systems may be provided only with the dampers which enable low damping or may be even without dampers at all. Moreover, between the vibrating mass and one or more springing systems, or between the springing systems and the excitation source, there is arranged one or more acceleration transformers in vertical direction. The deformation of each acceleration transformer amplified by the corresponding deflection amplifier opens its main valves, which proportionally to their displacement in the sense of opening thereof, let compressed air flow into the corresponding springing element or out of it into the atmosphere.

REFERENCES:
patent: 2977110 (1961-03-01), Kilgore
patent: 3124368 (1964-03-01), Corley et al.
patent: 3741582 (1973-06-01), Eckert
patent: 3807678 (1974-04-01), Karnopp et al.
patent: 3941403 (1976-03-01), Hiruma
patent: 3995883 (1976-12-01), Glaze

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