A damper bearing includes: a bearing portion that supports a rotary shaft; and a tubular portion that is located around an outer circumference of the bearing portion, and has an outer surface attachable to a structural member. The bearing portion can be a hydrostatic bearing that supports the rotary shaft with a predetermined bearing clearance therebetween. The tubular portion includes a plurality of planar slits arranged circumferentially at predetermined intervals in the tubular portion. Each slit extends radially from an open end at the outer surface, and extends circumferentially in an arc to a predetermined point in a region between the outer and inner surfaces. The tubular portion includes a bearing fluid supply hole that is formed in a region where none of the planar slits is situated, and extends from the outer surface of the tubular portion to the bearing portion without passing through any of the planar slits.

A vibration suppression system includes a ground manipulator, a flexible bar structure connected to an end of the ground manipulator, and at least one vibration suppression device configured to be distributedly arranged to be attached/detached to/from the flexible bar structure and configured to be controlled to reduce vibration and deflection occurring in the flexible bar structure by dispersing a load applied to the flexible bar structure due to movement or disturbance of the ground manipulator.

A hybrid damping module, a vibration suppression device, a vibration suppression method and a wind turbine set. The hybrid damping module comprises a first damping unit (8). The first damping unit (8) comprises a rotor portion (8a) and a stator portion (8b) that is provided parallel to the rotor portion (8a). The rotor portion (8a) is configured to capable of rotating relative to the stator portion (8b) so as to generate electromagnetic damping. A flow passage is formed in at least one of the rotor portion (8a) and the stator portion (8b). The hybrid damping module comprises a second damping unit (10) comprising a liquid damper. The liquid damper communicates with the flow passage and forms a circulation loop. A liquid (10p) in the liquid damper can cyclically flow in the circulation loop. In the hybrid damping module, a combined vibration suppression solution that combines a TMD and TLD is provided. By means of using a TMD and TLD in combination, the vibration suppression effect of the hybrid damping module can be increased. Furthermore, the problem of the attenuation of damping force caused by increasing temperature in a permanent magnet eddy current damping device is addressed.

A damper bearing includes: a bearing portion that supports a rotary shaft; and a tubular portion located around an outer circumference of the bearing portion, the tubular portion having a predetermined radial thickness and having an outer surface attachable to a structural member, wherein the bearing portion is configured as a hydrostatic bearing that supports the rotary shaft with a predetermined bearing clearance between the hydrostatic bearing and the rotary shaft, the tubular portion includes a plurality of planar slits located between the outer surface of the tubular portion and an inner surface of the tubular portion, each planar slit having a predetermined width, extending circumferentially, and further extending through an entire axial length of the tubular portion, the planar slits are arranged circumferentially at predetermined intervals in the tubular portion, each planar slit has an open end at the outer surface of the tubular portion, extends radially from the open end, and extends circumferentially in an arc to a predetermined point in a region between the outer surface and the inner surface, and the tubular portion includes a bearing fluid supply hole formed in a region where none of the planar slits is situated, the bearing fluid supply hole extending from the outer surface of the tubular portion to the bearing portion without passing through any of the planar slits. The damper bearing thus configured can be used as a bearing for a small machine and exhibit a damper function to damp vibration transmitted from the rotary shaft of the machine.

A device (1) for supporting an equipment (2), especially an upstanding electrical equipment from vibrations is disclosed. The device comprises a base plate (3), a set of support adapters (7), a set of viscous dampers (5) connecting the base plate to the support adapters and a set of wire rope dampers (6), wherein the set of wire rope dampers bear the base plate and connect the base plate to the support adapters. Further, the set of support adapters connect the viscous dampers and the wire rope dampers to a foundation plate by bolts or alternatively to a shake table via shake table adapters. A set of angular fixtures connect the support adapters to the base plate by means of the viscous dampers. In a preferred embodiment of the device the base plate is orthogonally shaped.

Embodiments of the invention are shown in the figures, where a method for manufacturing a gearbox, the method comprising: providing a predefined interval around an integer; providing a gearbox setup; determining a speed ratio of at least two components of the gearbox setup; comparing the speed ratio with the predefined interval around the integer; and manufacturing a gearbox in accordance with the gearbox setup in dependence on the comparison.

An e-charger includes a shaft supported for rotation about an axis. The e-charger also includes a compressor wheel that is attached to the shaft. The e-charger further includes an electric motor configured to drive the shaft and the compressor wheel in rotation. Also, the e-charger includes a housing that houses the electric motor and at least part of the shaft. Moreover, the e-charger includes a dampening system incorporated in the housing and configured to dampen loads transferring through the housing. The dampening system includes at least one solid-state dampener that is resiliently flexible, and the dampening system includes at least one fluid viscous dampener.

A damping system for damping rotary movements of a tailing arm. The system includes a chassis, a main shaft, and a rotary damping mechanism. The rotary damping mechanism includes a first externally-threaded gear attached fixedly to the main shaft, a guide rail attached fixedly to the chassis, a linear shock absorber, an internally-threaded gear associated with the first externally-threaded gear, and a first actuator configured to decouple the first externally-threaded gear from the linear shock absorber and couple the first externally-threaded gear with the linear shock absorber.

An e-charger includes a shaft supported for rotation about an axis. The e-charger also includes a compressor wheel that is attached to the shaft. The e-charger further includes an electric motor configured to drive the shaft and the compressor wheel in rotation. Also, the e-charger includes a housing that houses the electric motor and at least part of the shaft. Moreover, the e-charger includes a dampening system incorporated in the housing and configured to dampen loads transferring through the housing. The dampening system includes at least one solid-state dampener that is resiliently flexible, and the dampening system includes at least one fluid viscous dampener.

A vibration suppression system includes a ground manipulator, a flexible bar structure connected to an end of the ground manipulator, and at least one vibration suppression device configured to be distributedly arranged to be attached/detached to/from the flexible bar structure and configured to be controlled to reduce vibration and deflection occurring in the flexible bar structure by dispersing a load applied to the flexible bar structure due to movement or disturbance of the ground manipulator.