发明名称 Wideband electromagnetic damping of vibrating structures
摘要 The damping of vibrations in a mechanical structure is accomplished while minimizing the impact on the design and operation of the structure through the use of a plurality of attachable vibration damping elements. Each vibration damping element contains: an accelerometer, an integrator, mixer, power amplifier, and a force actuator. The accelerometer measures the motion of the vibration in the structure at its attachment point and produces an acceleration measurement signal. The integrator integrates the acceleration measurement signal to produce a velocity measurement signal. The mixer produces a composite motion signal by mixing the acceleration measurement signal with the velocity measurement signal. The power amplifier adjusts the phase and amplitude of the composite motion signal to drive the force actuator to damp the sensed vibration along one dimension at the attachment point of the force actuator. By placing three vibration damping element at right angles to each other at a location on the structure, three dimensional vibration damping is obtained at that point.
申请公布号 US4795123(A) 申请公布日期 1989.01.03
申请号 US19870049358 申请日期 1987.05.14
申请人 THE UNITED STATES OF AMERICA AS REPRESENTED BY THE SECRETARY OF THE AIR FORCE 发明人 FORWARD, ROBERT L.;GRIFFIN, WILLIAM S.
分类号 F16F15/02;(IPC1-7):F16M13/00 主分类号 F16F15/02
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