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Arrangement for damping of structural resonance

  • US 7,013,832 B2
  • Filed: 04/19/2001
  • Issued: 03/21/2006
  • Est. Priority Date: 04/28/2000
  • Status: Expired due to Term
First Claim
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1. A selective damper system for a vibrating structure, said system comprising:

  • a plurality of motion sensors for mounting to the structure, each sensor being arranged to generate a data signal indicative of local motion of the structure at its mounting position,a detector, responsive to the data signal from each of said sensors, including a modal matrix decomposition function for identifying at least one resonance mode of the structure from said data signals and, responsive to said identified resonance modes, an inverse modal matrix function for generating appropriate control signals in response to the onset of resonant mode vibrations at said at least one resonance mode in the structure, anda plurality of electromagnetic shakers mechanically fixed to the structure and arranged to receive the control signals so as to generate forces tending to damp said resonances of the structure.

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