A “TUNABLE VISCOELASTIC NEUTRALIZER WITH OSCILLATING MASS ON SHAFT FOR CONTROL OF VIBRATIONS IN PIPES IN GENERAL” is a dynamic viscoelastic vibration neutralizer for industrial pipes, consisting of a metallic housing (CAR), to which the shaft supports (SE1 and SE2) are fixed, by means of the use of the screws (PF1, PF2, PF3, PF4, PF5 and PF6), the supports of the viscoelastic pieces (SM1 and SM2) and the supports of the housing itself (SC1, SC2, SC3 and SC4), which allow the junction of the device with the system to be controlled; an oscillating mass (MAS), fixed in the center of a metallic shaft (EIX), which is supported by the shaft supports (SE1 and SE2); and two sets of viscoelastic pieces (MV-1 and MV-2), which are fixed by one of their ends to the supports of the viscoelastic pieces (SM1 and SM2) and by the other to the oscillating mass (MAS).

A “TUNABLE VISCOELASTIC NEUTRALIZER WITH OSCILLATING MASS ON SHAFT FOR CONTROL OF VIBRATIONS IN PIPES IN GENERAL” is a dynamic viscoelastic vibration neutralizer for industrial pipes, consisting of a metallic housing (CAR), to which the shaft supports (SE1 and SE2) are fixed, by means of the use of the screws (PF1, PF2, PF3, PF4, PF5 and PF6), the supports of the viscoelastic pieces (SM1 and SM2) and the supports of the housing itself (SC1, SC2, SC3 and SC4), which allow the junction of the device with the system to be controlled; an oscillating mass (MAS), fixed in the center of a metallic shaft (EIX), which is supported by the shaft supports (SE1 and SE2); and two sets of viscoelastic pieces (MV-1 and MV-2), which are fixed by one of their ends to the supports of the viscoelastic pieces (SM1 and SM2) and by the other to the oscillating mass (MAS).

A damper includes a vibration energy buffering transfer unit and a vibration energy dissipation unit. The vibration energy buffering transfer unit includes a plurality of piston transfer structures and connecting tubes, the piston transfer structures includes a cylinder and a piston arranged as a pair, the plurality of piston transfer structures surrounding the vibration energy dissipation unit, the connecting tubes inter-connecting the plurality of cylinders, the vibration energy dissipation unit includes a damping liquid accommodating cavity and damping liquid accommodated in the damping solution accommodating cavity, and one end of the cylinder or the piston being connected to the damping fluid accommodating cavity. The load-bearing enclosing structure provided with said damper can effectively suppress vibration.

A mass damper system includes an unsprung mass, a sprung mass, a suspension component that supports the sprung mass with respect to the unsprung mass, and a damper mass that is connected to the unsprung mass. Motion control components are connected to the sprung mass and a fluid-operated system that transfers forces between the motion control components and the damper mass to regulate motion of the damper mass with respect to the unsprung mass.

Hydraulic damper with load regulation as a function of frequency by means of hydraulic inertia composed of a cylinder, comprising an inner chamber, a rod, a main piston and an inertia piston, immersed in a hydraulic fluid, so that the inner chamber is divided into 3 sub-chambers, the main piston comprises a flow path controlled by valves to allow bidirectional flow of fluid between the sub-chambers and the inertia piston comprises a flow path called the inertia channel configured to allow fluid flow between sub-cameras at both sides of the inertia piston.

Hydraulic damper with load regulation as a function of frequency by means of hydraulic inertia composed of a cylinder, comprising an inner chamber, a rod, a main piston and an inertia piston, immersed in a hydraulic fluid, so that the inner chamber is divided into 3 sub-chambers, the main piston comprises a flow path controlled by valves to allow bidirectional flow of fluid between the sub-chambers and the inertia piston comprises a flow path called the inertia channel configured to allow fluid flow between sub-cameras at both sides of the inertia piston.

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.

The present invention relates to a tower damper adapted to be mounted in a wind turbine tower, the tower damper comprising a pendulum structure adapted to be suspended in the wind turbine tower; a plurality of springs arranged to dampen movements of the pendulum structure; a suspension arrangement for suspending the pendulum structure; and a chamber holding a damping liquid into which damping liquid the pendulum structure is at least partly immersed. The present invention further relates to a wind turbine comprising a tower damper.

The invention relates to a new type of tuned mass damper which is suitable in particular for damping oscillations of a low frequency, and can thus be used preferably as a construction damper when building or siting high, narrow structures, such as wind-turbine towers. The invention relates in particular to a pendulum oscillation damper having a first pendulum, to which the mass is attached, and a second pendulum, which is formed by a spring-like support device of a different design and is operated using a gas-air volume such that, with the aid thereof, the frequency of the oscillation system can be adapted and adjusted.

The invention relates to a new type of tuned mass damper which is suitable in particular for damping oscillations of a low frequency, and can thus be used preferably as a construction damper when building or siting high, narrow structures, such as wind-turbine towers. The invention relates in particular to a pendulum oscillation damper having a first pendulum, to which the mass is attached, and a second pendulum, which is formed by a spring-like support device of a different design and is operated using a gas-air volume such that, with the aid thereof, the frequency of the oscillation system can be adapted and adjusted.