Patent ID: 7876024
Filing Date: 2011-01-25
Classification: F16F,H05K

Abstract:
1. A device for dampening bending vibrations of a planar element which include vibrations perpendicular to opposite surfaces of the planar element comprising: a neutral plane running between the opposite surfaces, at least one actuator and at least one sensor, the at least one actuator and the at least one sensor each including transducer materials, at least one electronic component coupled to the transducer materials, the transducer materials being controlled to elongate and/or shorten to dampen the bending vibrations perpendicular to the neutral plane; and wherein the at least one actuator and the at least one sensor are integrated within the planar element, are separated from the two surfaces and are separated from the neutral plane with the neutral plane comprising points inside the planar element in which no tensile stress or pressure stress occurs when the planar element is bent perpendicular to the opposite surfaces.