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Replicated-in-place internal viscous shear damper for machine structures and components

  • US 5,799,924 A
  • Filed: 03/13/1995
  • Issued: 09/01/1998
  • Est. Priority Date: 09/09/1992
  • Status: Expired due to Term
First Claim
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1. A structural load supporting system having, in combination, one or more structural members each having a neutral axis and having internal holes formed therein and therealong and of perimeter shape and location relative to the neutral axis of the member so as to maximize the product of the perimeter of the shape and the distance of the hole from said neutral axis of the member;

  • shear members having a thin viscous layer, of said one shear members for insertion in each of said hole and of cross-section just slightly smaller than the hole; and

    a replicant secured internally of the structural member and around the viscous-layered shear members and bounding the holes to suspend the shear members in the holes by only the viscous layer frictionally contacting the hole-bounding replicant;

    such that when the structural members bend, shear strains occur between the structural members and the shear members across the thin viscous layer to provide high dissipation and damping of bending and axial vibrations of the structural members.

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