Reduction of vibration transfer
First Claim
1. A dissipative vibratory wave barrier comprising a carrier having an inner surface and an outer surface, wherein a coating comprising a thermally expandable material is present on at least one of said inner surface or said outer surface and wherein said thermally expandable material, after expansion and at a temperature between −
- 10 and +40°
C., has a Young'"'"'s storage modulus E′
between 0.1 MPa and 1000 Mpa and a loss factor higher than 0.3 in the frequency range 0 to 500 Hz.
2 Assignments
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Accused Products
Abstract
A thermally expandable material is provided that, once expanded, has a Young'"'"'s storage modulus E′ between 0.1 MPa and 1000 MPa, a loss factor of at least 0.3 (preferably, at least 1) and preferably a shear storage modulus G′ between 0.1 MPa and 500 MPa at a temperature between −10 and +40 degrees C. in the frequency range 0 to 500 Hz. Such materials are useful in combination with a carrier to form a dissipative vibratory wave barrier that effectively reduces the transfer of vibrations from a vibration generator, as may be present in a vehicle.
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Citations
12 Claims
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1. A dissipative vibratory wave barrier comprising a carrier having an inner surface and an outer surface, wherein a coating comprising a thermally expandable material is present on at least one of said inner surface or said outer surface and wherein said thermally expandable material, after expansion and at a temperature between −
- 10 and +40°
C., has a Young'"'"'s storage modulus E′
between 0.1 MPa and 1000 Mpa and a loss factor higher than 0.3 in the frequency range 0 to 500 Hz. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
- 10 and +40°
Specification