Sheet molding compound damper component, and methods for making and using the same
AssigneeMaterial Sciences Corporation
InventorDaniel Boss
Life of this patent
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Abstract
A damper component for absorbing and dissipating vibration and/or noise resonating from a device is provided. The damper component includes a viscoelastic damper layer, and a continuous constraining layer intimately contacting and encasing the damper layer. The constraining layer has a greater stiffness and higher modulus of dynamic shearing elasticity than the damper layer. The constraining layer is a molded sheet molding compound that is substantially immiscible with the viscoelastomer to provide a discrete interface between the constraining layer and the damper layer.
Claims25
A damper component for absorbing and dissipating vibration and/or noise resonating from a device, the damper component comprising:
- a fragmented damper layer having opposite surfaces and edges and comprising a plurality of fragments that are noncontinuous with each other to provide interstices between the noncontinuous fragments, the fragmented damper layer comprising a viscoelastomer;
- and
- a continuous constraining layer contacting the opposite surfaces and the edges of the fragmented damper layer to completely encase the fragmented damper layer and fill the interstices between the noncontinuous fragments, the constraining layer having a greater stiffness and higher modulus of dynamic shearing elasticity than the fragmented damper layer, the constraining layer comprising a molded polyester sheet molding compound that is substantially immiscible with the viscoelastomer to provide discrete interfaces between the constraining layer and the noncontinuous fragments.
A damper component for absorbing and dissipating vibration and/or noise resonation, the damper component comprising:
- first and second fragmented damper layers each having opposite first and second surfaces and edges and each comprising a plurality of fragments that are noncontinuous with one another to provide interstices between the noncontinuous fragments, each of the damper layers comprising a viscoelastomer;
- and
- a continuous constraining layer contacting the opposite surfaces and the edges of the fragmented damper layers to completely encase the fragmented damper layers and fill the interstices between the noncontinuous fragments, the constraining layer having a greater stiffness and higher modulus of dynamic shearing elasticity than the fragment damper layers, the constraining layer comprising a molded polyester sheet molding compound that is substantially immiscible with the viscoelastomer to provide a discrete interface between the constraining layer and the fragmented damper layers.
Dependencies are inferred from the claim text.