Magnetic vibration damper includes three coaxial elements: a first coaxial element with first permanent magnets, a second coaxial element with first soft magnets and a third coaxial element with second permanent magnets. The first soft magnets are located between the first permanent magnets and the second permanent magnets in a radial direction. The spacing of the second permanent magnets is larger than the spacing of the first permanent magnets. The damper further includes an energy conversion component, such as conductive layers or coils to convert the mechanical movement of the magnets into heat or electric current.

An active vibration controller includes: a housing; a first magnetic member installed on the side of the housing having a toric shape; a movable member including a second magnetic member that is substantially coaxial with the first magnetic member and disposed inside the toric shape of the first magnetic member; an exciting coil that generates a magnetic field in accordance with an intensity of a current supplied thereto; and a magnetic viscoelastic elastomer that has a magnetic viscoelastic property varying in accordance with a magnitude of the magnetic field from the exciting coil between the first and second tip portions, and connects the first magnetic core to the second magnetic core. The magnetic viscoelastic elastomer has a region having a non-magnetic property between the first and the second magnetic cores.

Provided is a tactile information supply module. The tactile information supply module includes a receiver for receiving message information from the outside, a controller for converting the message information into a tactile signal, and an operator for providing tactile information to a user based on the tactile signal, wherein the operator includes at least one tactile sensation provider comprising magnetic particles and a matrix material, and wherein the tactile sensation provider is transformed in response to an external magnetic field to provide the tactile information.

A vehicle, particularly motor vehicle, having a plurality of wheels that form unsprung structural component parts rotatable around wheel axles and a vehicle body forming a sprung structural component part. An energy generation device is arranged in the vehicle body by which a movement of the vehicle body or of parts of the vehicle body can be converted into electrical energy supplied to a storage battery. The energy generation device is an energy absorption converter and has a cylindrical coil winding which surrounds an interior space in which an axially magnetized permanent magnet is arranged such that it can be driven so as to be coaxially movable by the movement of the vehicle body or of a part of the vehicle body.

A vehicle, particularly motor vehicle, having a plurality of wheels that form unsprung structural component parts rotatable around wheel axles and a vehicle body forming a sprung structural component part. An energy generation device is arranged in the vehicle body by which a movement of the vehicle body or of parts of the vehicle body can be converted into electrical energy supplied to a storage battery. The energy generation device is an energy absorption converter and has a cylindrical coil winding which surrounds an interior space in which an axially magnetized permanent magnet is arranged such that it can be driven so as to be coaxially movable by the movement of the vehicle body or of a part of the vehicle body.

A vibrational decoupling interface connects between handle shafts of power tools such as lawnmowers, line trimmers and the like. The interface has a housing coupled to one of the shafts and having a channel having a first magnet at a first end thereof and a second magnet at a second end thereof. The channel further has a travelling magnet travelling between the first and second magnets, the magnets arranged such that the travelling magnet is repelled from the first and second magnets and the travelling magnet is coupled to the other shaft to thereby reduce the transmission of vibration between the shafts.

A suspension device includes: a hydraulic damper including a rod provided with a valve for generating a hydraulic pressure when the rod is displaced between a first liquid chamber and a second liquid chamber; an electric damper configured to electrically displace the rod by an actuator; and a communication passage that establishes communication between the first liquid chamber and the second liquid chamber while bypassing the valve during operation of the electric damper.

A suspension device includes: a hydraulic damper including a rod provided with a valve for generating a hydraulic pressure when the rod is displaced between a first liquid chamber and a second liquid chamber; an electric damper configured to electrically displace the rod by an actuator; and a communication passage that establishes communication between the first liquid chamber and the second liquid chamber while bypassing the valve during operation of the electric damper.

An aircraft undercarriage comprising a telescopic linear rod (0, 0, 0) comprising first and second sliding rod portions. The undercarriage further comprises: a first permanent magnet set (1a, 1a, 1a) fastened to the first rod portion (1, 1, 1); and a second permanent magnet set (2a, 2a, 2a) fastened to the second rod portion (2, 2, 2); the first and second permanent magnet sets (1a, 1a, 1a, 2a, 2a, 2a) generating a magnetic repulsion force between the first rod portion (1, 1, 1) and the second rod portion (2, 2, 2) and maintaining a first annular space (E1) between the first rod portion and the second rod portion.

An aircraft undercarriage comprising a telescopic linear rod (0, 0, 0) comprising first and second sliding rod portions. The undercarriage further comprises: a first permanent magnet set (1a, 1a, 1a) fastened to the first rod portion (1, 1, 1); and a second permanent magnet set (2a, 2a, 2a) fastened to the second rod portion (2, 2, 2); the first and second permanent magnet sets (1a, 1a, 1a, 2a, 2a, 2a) generating a magnetic repulsion force between the first rod portion (1, 1, 1) and the second rod portion (2, 2, 2) and maintaining a first annular space (E1) between the first rod portion and the second rod portion.