A shimmy damper for centering a landing gear includes a cap and a housing. The shimmy damper further includes a damper shaft extending from the cap to the housing. The shimmy damper further includes a plurality of magnets configured to exert an opposing force on the cap and the housing via the damper shaft, providing a centering mechanism of the damper shaft within the housing. This centering action in turn provides for the centering of the landing gear during flight.

A shimmy damper for centering a landing gear includes a cap and a housing. The shimmy damper further includes a damper shaft extending from the cap to the housing. The shimmy damper further includes a plurality of magnets configured to exert an opposing force on the cap and the housing via the damper shaft, providing a centering mechanism of the damper shaft within the housing. This centering action in turn provides for the centering of the landing gear during flight.

An anchoring device for anchoring a floating object to an anchor structure, including a first attachment for being constrained to the floating object; a second attachment for being constrained to the anchor structure; a damping member for damping the relative motion between the attachments for securing the first attachment to the second attachment and including a sliding chamber, a piston for sliding in the sliding chamber according to a relative motion between the attachments and a damper for damping the sliding of the piston in the sliding chamber; and a control unit including a measurement sensor for measuring the sliding of the piston; and a control board for varying the damping of the damper according to the sliding of the piston detected by the measurement sensor.

The suspension device for vehicles includes: an electric damper which operates by electricity; a fluid pressure damper which operates by hydraulic pressure; a road-surface state detector which detects a road-surface state ahead of a tire of a vehicle; and a controller which causes at least one to operate among the electric damper and the fluid pressure damper, based on a detection result of the road-surface state detector.

An electromagnetic-piezoelectric composite vibration control device based on a synchronized switch damping technology is provided. An upper guiding component is installed inside the upper rigid frame, a lower guiding component is installed inside a lower rigid component, a guide rod is nested inside the upper guiding component and the lower guiding component, an upper idler wheel mechanism and a lower idler wheel mechanism are fixedly sleeved on the guide rod and are positioned between the upper guiding component and the lower guiding component respectively, an electromagnetic mechanism is fixedly sleeved outside the guide rod, one end of each piezoelectric cantilever beam is fixed between the upper rigid frame and the lower rigid frame, the other end is arranged between the upper idler wheel mechanism and the lower idler wheel mechanism, and the piezoelectric cantilever beams and the electromagnetic mechanism are connected with a circuit system respectively.

A first electric suspension device includes a first electromagnetic actuator that is provided between the vehicle body and a wheel of a vehicle and generates a driving force for damping vibration of the vehicle. The first electromagnetic actuator includes a columnar rod member and a casing surrounding the rod member and being provided capable of moving forward and backward axially relative to the rod member. The rod member has a conductive shaft and a tubular pipe portion surrounding the shaft. First ends of rod-side armature coils provided in the rod member are connected to the shaft. Power supply to the rod-side armature coils provided in the rod member is performed through the shaft of the rod member.

A suspension system for a vehicle is provided. A linear regenerative suspension system that converts mechanical energy into storable electrical energy is also provided. The system utilizes pistons, one on each side of the vehicle, engaged with a vehicle body at a distal end and having a fluid chamber at the proximal end. The system further has a central chamber having a rod freely laterally moving therein. A fluid communicates between the central chamber and each piston fluid chamber. Upon nonlinear forces applied to the vehicle, the rod is urged in one direction or another. This urging applies force to the fluid in the central chamber, and in turn, to the piston in the corresponding side of the vehicle, urging the piston up and in turn urging the vehicle body up.

A negative stiffness generating mechanism and a quasi-zero stiffness vibration isolator are provided. A housing is mounted on a base, and the axial relative positions of the housing and the base can be adjusted; a negative stiffness unit comprises inner-ring magnets, outer-ring magnets and a supporting shaft, the supporting shaft axially slides on the base and passes through the housing, the inner-ring magnets fixedly sleeve the supporting shaft, and the outer-ring magnets sleeve outside the inner-ring magnets and are divided into upper and lower groups of outer-ring magnets; the upper and lower groups of outer-ring magnets can synchronously move through a negative stiffness adjusting device; and the axial relative positions of the middle planes of the outer-ring and inner-ring magnets can be adjusted by adjusting the axial relative positions of the housing and the base. The isolator comprises a negative stiffness generating mechanism and a positive stiffness unit.

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 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.