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Vibration and Earthquake Isolation

Frictional-suspension-damping-system

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Frictional suspension damping system

Details

Inventors: Aleck, Benjamin J.;
Assignee: Grumman Aerospace Corporation (Bethpage, NY)
Primary Examiner: Butler; Douglas C.
Assistant Examiner:
Attorney, Agent or Firm: Geib; Richard G., Brunda; Bruce B.

A frictional suspension damping system is provided whereby vehicular oscillations due to an uneven terrain may be controlled by electrically regulated frictional braking device adapted to restrain the rotational movement of a remote torsion bar. Each wheel having an associated torsional member may be so damped. A centralized processor may be used for simultaneous control of a plurality of friction brakes.

DETAILED DESCRIPTION These and other objects of the present invention are accomplished by providing a frictional suspension damping system adapted to brake the rotational movement of an elastic torsion bar member as it twists in response to terrain variations.
The load normal to the rubbing surfaces of the frictional braking device is related to the desired torsional resistance and may be controlled by a lightweight, centralized processor.
Electrical signals from transducer units are used to provide measurable indications of terrain aberrations.
The desired degree of frictional braking is related to the measured displacements as well as derivatives thereof.
In addition, the whole vehicle may be used as a radiator to dissipate the heat generated by friction.

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