P
USH2237HActiveUtilityPatentIndex 56

Embedded dynamic vibration absorber

Assignee: US NAVYPriority: Jun 26, 2006Filed: Jun 26, 2006Granted: Apr 6, 2010
Est. expiryJun 26, 2026(expired)· nominal 20-yr term from priority
Inventors:BARRETT DAVID JOHN
F16F 7/108F16F 9/306
56
PatentIndex Score
5
Cited by
9
References
7
Claims

Abstract

An embedded dynamic vibration absorber that includes an external structural portion and a vibrational absorbing portion. The vibrational absorbing portion is encompassed or surrounded by the external structural portion.

Claims

exact text as granted — not AI-modified
1. An embedded dynamic vibration absorber, comprising:
 an external structural portion; and,  
 a vibrational absorbing portion, the vibrational absorbing portion encompassed by the external structural portion.  
 
   
   
     2. An embedded dynamic vibration absorber, comprising:
 a plurality of structural layers, the structural layers adjacent to each other;  
 an embedment, the embedment embedded between interior layers of the structural layers, the embedment comprising of a mass element and a viscoelastic material, the viscoelastic material surrounding the mass element.  
 
   
   
     3. The embedded dynamic vibration absorber of  claim 2 , wherein the mass element is a material having a density greater than the density of the viscoelastic material. 
   
   
     4. An embedded dynamic vibration absorber, comprising:
 a plurality of axial structural layers, the axial structural layers adjacent to each other;  
 an embedment, the embedment embedded between interior layers of the axial structural layers, the embedment comprising of a mass element and a viscoelastic material, the viscoelastic material surrounding the mass element, the mass element being a material having a density greater than the density of the viscoelastic material.  
 
   
   
     5. The embedded dynamic vibration absorber of  claim 4 , wherein the viscoelastic material is selected from a material in the group consisting of acrylic polymer, an elastomer, a polymer, an adhesive, rubber, a polyvinyl chloride alloy compound, a vulcanized polyolefinine thermoplastic rubber, a urethane foam, and a thermoplastic. 
   
   
     6. The embedded dynamic vibration absorber of  claim 5 , wherein the axial structural layers are manufactured from a material selected from the group consisting of metal, wood, structural plastic, advanced composite, a lamination of wood, composite materials, and fiberglass. 
   
   
     7. The embedded dynamic vibration absorber of  claim 6 , wherein the mass element is manufactured from a material selected from the group consisting of metal, wood, structural plastics, advanced composites, viscous liquid, and gel.

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