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Viscoelastic damping structures and related manufacturing method

  • US 5,342,465 A
  • Filed: 09/28/1992
  • Issued: 08/30/1994
  • Est. Priority Date: 12/09/1988
  • Status: Expired due to Fees
First Claim
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1. A method for fabricating a tubular viscoelastic damping structure, comprising the steps of:

  • placing annular spacers on a cylindrical mandrel;

    forming an inner segmented layer on the mandrel in segment regions between the spacers;

    forming an inner sandwich portion comprising multiple continuous layers including viscoelastic material and elastic material over the inner segmented layer;

    curing the resulting structure of inner segmented layer and inner sandwich portion;

    forming an outer segmented layer over the sandwich portion, wherein the outer segmented layer has segments that partially overlap the segment regions of the inner segmented layer;

    curing the entire structure; and

    removing the mandrel and the annular spacers.

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