A vibration damping mount is disclosed that is designed to be mounted to a vehicle such as a car, truck, ATV or boat and accommodate an electronic device with a screen. The vibration damping mount may be mounted by a bracket, bolts, a clamp, or other coupling means. The vehicle-mounted portion and device-mounting portion of the vibration damping mount may generally be connected by a piston having springs on either side to absorb vibrational energy from the motion of the vehicle the system is mounted to, thereby reducing vibration of the screen of any electronic device mounted to the system. The springs may be further tuned by tightening or loosening tuning screws in contact with the springs, thereby increasing or decreasing the force of the springs on the piston. This allows the vibration damping mount to be adapted to a variety of vehicles and circumstances.

A method for controlling an elastic mount configured to support a propulsion device with respect to a marine vessel, wherein the elastic mount contains an electromagnetic fluid and an electromagnet and is configured such that adjusting an amount of electricity applied to the electromagnet changes a shear strength of the electromagnetic fluid in the elastic mount and thereby controls an elasticity of the elastic mount. The method includes applying a first amount of electricity to the electromagnet to produce an initial elasticity of the elastic mount measuring an oscillation of the propulsion device with a motion sensor, determining that the oscillation of the propulsion device exceeds a threshold oscillation, and adjusting the amount of electricity applied to the electromagnet to change the elasticity of the elastic mount to reduce the oscillation.

The disclosure provides a magnetic suspension type quasi-zero stiffness electromagnetic vibration isolator with active negative stiffness. The disclosure relates to the technical field of vibration control. The disclosure can selectively realize passive negative stiffness and active negative stiffness by adjusting the control mode of a controller. By adopting an amplifying mechanism and DIESOLE type electromagnets, the bearing capacity of the vibration isolator is further increased, and the disclosure is suitable for the field of ultra-low frequency heavy load vibration reduction and isolation. The displacement state of a negative stiffness mechanism can be measured in real time according to a sensor, and by means of cooperation of the controller and a driver, active negative stiffness is realized, real-time linear negative stiffness is realized, the multi-stable phenomenon is avoided, and complex dynamic phenomena such as jumping during working of the vibration isolator are prevented. The active negative stiffness is realized, the current passing through the system can be adjusted according to different working conditions, and the system has strong self-adaptive ability, can be applied to vibration-isolated objects of different quality, and can adapt to different working environments.

A head unit device for controlling motion of an object includes shear thickening fluid (STF), an alternative STF (ASTF), and a chamber configured to contain a portion of the STF and the ASTF. The chamber further includes a piston compartment and an alternative reservoir. The head unit device further includes a reservoir injector configured within the chamber, and a piston housed at least partially radially within the piston compartment. The chamber further includes a set of fluid flow sensors and a set of fluid manipulation emitters to control the reservoir injector to adjust flow of the ASTF from the alternative reservoir to the piston compartment to cause selection of one of a variety of shear rates for a mixture of the STF and the STF within the piston compartment.

A magnetic geared rotating electrical machine is provided with a stator, a low-speed rotor which includes a plurality of pole pieces arranged in a circumferential direction of the stator and is installed inside the stator, a high-speed rotor which includes a plurality of second magnets as magnets facing the plurality of pole pieces and is installed inside the low-speed rotor, a first piezoelectric element which is provided in each of the plurality of pole pieces and which converts a vibration into an electric signal, and a control unit which is connected to the first piezoelectric element and performs vibration damping of the pole piece on the basis of an output voltage of the first piezoelectric element.

A damping integrated device, a damper, and a wind turbine are provided. The damping integrated device includes: a base body including an inner cavity extending in the lengthwise direction thereof; a frequency adjustment component disposed in the inner cavity and including an elastic member and a connecting member; a first connector extending into the inner cavity and at least partially protruding out of the base body in the lengthwise direction, the first connector being capable of moving relative to the base body, to make the elastic member stretch or shrink in the lengthwise direction; and a damping component disposed in the inner cavity, being connected to the connecting member and at least partially abutting against an inner wall of the base body, and the damping component being configured to absorb kinetic energy of the first connector.

An actuator arrangement for applying a torque to a shaft of a machine, in particular a reciprocating piston engine, includes: a) at least one actuator device for applying the torque; and b) at least one rotatable seismic mass coupled to the shaft. The at least one actuator device is designed to apply the torque to the shaft between the seismic mass and the shaft. A corresponding method is provided for active damping of torsional vibrations of the shaft having the actuator arrangement.

A wheel with an intelligent suspension system that includes a hub, a rim and a set of spokes with dynamically adjustable spoke lengths. Further included is one or more sensors associated with at least the hub and the rim and a microcontroller unit (MCU) that receives sensory signals from the one or more sensors, and transmits control signals to the set of spokes to dynamically control spoke lengths of the set of spokes.

A suspension characteristic is changed depending on a travel state by a simple structure. An ECU uses a vehicle speed-spring constant setting part to calculate a target spring constant depending on a vehicle speed, and uses a spring constant-frequency setting part to calculate a set frequency corresponding to the target spring constant. An oscillation input calculation part generates a signal representing an oscillation input oscillating at the set frequency. A superimposition part sets a value acquired by superimposing the oscillation input on a target driving force to a new target driving force. As a result, the wheel exhibits a minute oscillation in a longitudinal direction, resulting in an input of the minute oscillation to a suspension bush. The suspension bush changes in a spring constant and a damping coefficient depending on the frequency of the input minute oscillation. As a result, the suspension characteristic can be changed.

A self-balancing vibration damping system, an active vibration damping seat, and transport equipment are provided. The self-balancing vibration damping system includes an active vibration damping module, a control module, a sensor module, and a receiving module, where the sensor module is configured to acquire motion data of the transport equipment; the active vibration damping module includes a first rotating assembly and a second rotating assembly; the first rotating assembly is provided in an accommodation space; the second rotating assembly is provided at a driving end of the first rotating assembly, and is butted with the receiving module; the control module is configured to control the first rotating assembly and the second rotating assembly to operate synchronously according to the motion data, so as to provide a force opposite to a tilt direction of the receiving module.