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AssigneeVirginia Tech Intellectual Properties, Inc.
InventorsChristopher Fuller, Kathleen Kondylas
Estimating the term…
The active/passive absorber for extended vibration and sound radiation control includes principally two layers. The first layer has a low stiffness per unit area which allows motion in the direction perpendicular to its main plane. The second layer is principally a mass layer. These two combined layers have a frequency of resonance close to one of the main structure. The dynamic behavior of the coupled system makes the active/passive absorber a passive absorber; however, the first layer can be electrically actuated to induce motion in the direction perpendicular to its main plane. This addition property induces and/or changes the motion of the mass layer and therefore improves the dynamic properties of the active/passive absorber system. The active/passive absorber can have multiple mass layers and multiple elastic layers stacked one on top of the other. In addition, the mass layers can be continuous or discretized, and have varying thicknesses and shapes for sections and/or segments in the mass layer.
A vibration absorber for controlling vibration and sound radiation over an extended area of a vibrating structure, comprising:
A method of making a vibration absorber, comprising at least the steps of:
A vibration absorber, comprising:
A heterogenous material for vibration or acoustic dampening, comprising:
The heterogenous material wherein said continuous or semi-continous mass layer is segmented along its length.
Dependencies are inferred from the claim text.