Patent ID: 8353464
Filing Date: 2013-01-15
Classification: E01B

Abstract:
1. A device for reducing noise and vibrations of a rail having a rail foot and a rail web, said device comprising: at least one oscillation mass; at least one mounting member for fixing said at least one oscillation mass to said rail; and at least one resilient layer that is disposed adjacent to said at least one oscillation mass and that is operative to separate said at least one oscillation mass from said at least one mounting member; wherein said at least one resilient layer is disposed perpendicular to said rail and is operative to vibrate along the shear direction of said at least one resilient layer; whereby the vertical and lateral vibration of the rail causes shear deformation of said at least one resilient layer when the resonant frequency of said at least one oscillation mass is tuned to match the resonant frequency of said rail and the kinetic energy of said rail is transmitted through said at least one mounting member to said at least one oscillation mass and is dissipated in said resilient layer by elastic hysteresis.