Abstract: Viscoelastic damper assembly applicable both in air and submerged applications and with improved efficiency over prior art solutions for adding damping to an object or structure.

Abstract: Method for vibration damping of and vibration damper assembly for semi-submerged or submerged structure, based on separating hydrodynamic added mass from the semi-submerged or submerged structure by means of a vibration damper assembly exhibiting spring and/or damper properties and use the hydrodynamic added mass as a reaction mass in the vibration damper assembly.

Abstract: Method for vibration damping of and vibration damper assembly for semi-submerged or submerged structure, based on separating hydrodynamic added mass from the semi-submerged or submerged structure by means of a vibration damper assembly exhibiting spring and/or damper properties and use the hydrodynamic added mass as a reaction mass in the vibration damper assembly.

Abstract: The present invention relates to a rod-shaped tool holder (1) having a length (I) for the attachment of at least one machining cutting bit (2). The tool holder (1) is configured for being clamped at a first end (4) and has a second free end (3) and optionally a secondary support between the clamping point (4) and the at least one cutting bit (2). In operation, the tool holder oscillates in higher order bending oscillations about at least one node (6) located on a curvilinear axis (x) extending from the first end. The at least one cutting bit (2) is positioned substantially at the node (6) in a distance from the free end (3), towards the first end (4).

Abstract: The present invention relates to a rod-shaped tool holder (1) having a length (I) for the attachment of at least one machining cutting bit (2). The tool holder (1) is configured for being clamped at a first end (4) and has a second free end (3) and optionally a secondary support between the clamping point (4) and the at least one cutting bit (2). In operation, the tool holder oscillates in higher order bending oscillations about at least one node (6) located on a curvilinear axis (x) extending from the first end. The at least one cutting bit (2) is positioned substantially at the node (6) in a distance from the free end (3), towards the first end (4).

Abstract: The invention relates to a device for damping vibrations and/or controlling the flexion of an object in machining, said device comprising at least one force exchange device which could be a force applying device or a damping device. A such force applying device is for applying a force having a force component directed at right angles to the surface of the object and/or for applying a moment to the object. A damping device of this type is for absorbing vibrations from the object and is adapted to absorb a force component directed at right angles to the surface of the object or to absorb a moment from the object.

Abstract: The invention relates to a device for damping vibrations and/or controlling the flexion of an object (2, 10) in machining, said device comprising at least one force exchange device (7) which could be a force applying device or a damping device. A such force applying device (7) is for applying a force having a force component directed at right angles to the surface of the object and/or for applying a moment to the object (2, 10). A damping device (7) of this type is for absorbing vibrations from the object (2, 10) and is adapted to absorb a force component directed at right angles to the surface of the object or to absorb a moment from the object.