摘要:
The invention relates to a device for damping the oscillations of a supporting structure. Said device comprises: at least one pair of mass elements (24, 26), which are located on opposite sides of an axis (18), about which a torsional motion of the supporting structure occurs during an oscillation, each mass element being pivotally mounted in such a way that the mass of each element is distributed eccentrically around a bearing point (32, 34); at least one drive (20, 22), which adjusts the mass element by a predetermined angle on a plane running perpendicular to the axis; and a control unit, which controls at least one drive for modifying the angular position of the mass element, based on measured values of the position and/or motion of the supporting structure.
摘要:
A damping device for damping vibrations of a bridge with a bridge deck comprises at least one damping wing comprising a center and configured to dampen vibrations of the bridge. A longitudinal direction of the at least one damping wing is disposed parallel to a longitudinal direction of the bridge deck and the at least one damping wing is stationary upon wind acting on the bridge in a given direction. At least one support structure is laterally attached to at least one side of the bridge deck and configured to attach the at least one damping wing to the bridge deck such that the at least one damping wing is disposed with a lateral offset from an outer edge of the bridge deck facing the at least one damping wing.
摘要:
Device for oscillation monitoring of a structure having - a mass body which is mounted so as to be rotatable about a rotational axis and whose centre of gravity is at a distance from the rotational axis, - a controller having a first sensor which senses an actual value for an angular speed and/or for an angular acceleration of the mass body in a predetermined angular range of a rotational movement of the mass body about the rotational axis, and a second sensor which senses a characteristic variable for oscillation of the structure, wherein the regulating means determines, from the sensed values of the first and second sensor, a setpoint value for the speed and/or acceleration of the mass body in the predetermined angular range, - and a drive which drives rotational movement of the mass body in accordance with the setpoint value or values of the controller in the predetermined angular range and is driveless outside the angular range.
摘要:
The aim of the invention is to create a device for damping vibrations, which can dampen and eliminate vibrational states better than previously known devices by being excited in a self-induced or externally induced manner, thus improving stability, durability, and usability while providing great reliability and using simple means and as little energy as possible. Said aim is achieved by a device for damping vibrations in a building, which comprises the following: at least one couple of mass elements (18) that are disposed on opposite sides of a rotating pin or swivel pin (16) around which the vibration is dampened. The mass elements are fixed to the ends of a beam (14) that is mounted so as to be rotatable about the rotating pin or swivel pin. The rotations or vibrations of the beam are predefined or influenced actively by means of an actuator (22) and/or passively by means of spring elements and/or damping elements.
摘要:
The invention relates to a device for damping the oscillations of a supporting structure. Said device comprises: at least one pair of mass elements (24, 26), which are located on opposite sides of an axis (18), about which a torsional motion of the supporting structure occurs during an oscillation, each mass element being pivotally mounted in such a way that the mass of each element is distributed eccentrically around a bearing point (32, 34); at least one drive (20, 22), which adjusts the mass element by a predetermined angle on a plane running perpendicular to the axis; and a control unit, which controls at least one drive for modifying the angular position of the mass element, based on measured values of the position and/or motion of the supporting structure.
摘要:
The invention relates to a device for damping or surpressing vibrations in a building. Said device comprises at least one aerodynamic control surface which is mounted in a rotational and/or displaceable manner, at least one mechanical damper which comprises a spring element and which works in a predetermined direction in relation to the building of the rotational vibrations or the vibrations, and at least one constraint cinematic coupling which is arranged between the mechanical damper and the aerodynamic control surface. Said device can also dampen or surpress torsion vibrations as well as vibrations in predetermined directions.