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Adaptive-passive vibration control system

  • US 5,564,537 A
  • Filed: 04/04/1994
  • Issued: 10/15/1996
  • Est. Priority Date: 04/04/1994
  • Status: Expired due to Fees
First Claim
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1. A vibration filtering/absorbing control system for minimizing the transmission of vibrations from a vibrating body to at least one structure in mechanical communication with the vibrating body, comprising:

  • a first spring/mass vibration controlling system including a first spring and a first weight connected to said spring forming a combined vibration filtering/absorbing means;

    said vibration filtering/absorbing means connected to said vibrating body;

    an actuator means for varying the mass of said weight and/or the stiffness of said spring;

    a sensor for sensing the vibration in the vibrating body and/or in the structure connected to the vibrating body, said sensor providing a variable output feedback signal corresponding to the sensed vibration; and

    an electric controller connected to receive said feedback signal from said sensor indicative of the sensed vibration and to relay a control signal to said actuator,said sensor and controller thereby forming the adaptive portion of an adaptive-passive vibration filter/absorber and said controller instructing said actuator to automatically adjust the spring/mass system in a manner to minimize the sensed vibrations.

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