摘要:
An electromagnetic actuator (100) comprises magnets (109, 111, 113, 115, 11), and a ferromagnetic structure (103) accommodating control conductors (118, 121, 123, 125). The magnets and the structure can move with respect to one another under control of control currents in the control conductors. The magnetic field in a gap (107) between the magnets and the ferromagnetic structure is oriented perpendicular to the direction of relative movement. The structure (103) accommodates damping conductors (127) that form closed loops of an electrically conductive material, different from the ferromagnetic material. The damping conductors (127) provide a damping force induced by the relative movement.
摘要:
An electromagnetic actuator (100) comprises magnets (109, 111, 113, 115, 11), and a ferromagnetic structure (103) accommodating control conductors (118, 121, 123, 125). The magnets and the structure can move with respect to one another under control of control currents in the control conductors. The magnetic field in a gap (107) between the magnets and the ferromagnetic structure is oriented perpendicular to the direction of relative movement. The structure (103) accommodates damping conductors (127) that form closed loops of an electrically conductive material, different from the ferromagnetic material. The damping conductors (127) provide a damping force induced by the relative movement.
摘要:
Spring comprising a first part (1) and a second part (2) moveable relative to each other, the first part being provided with at least one permanent magnet (4,4′), the second part being provided with at least one tooth (5,SM of a soft magnetic material which faces the at least one permanent magnet, whereby the total area of the facing surface varies as the first part moves relative to the second part, the first and/or the second part also being provided with at least one set of electrically conductive windings (7) which are connected to an electric power supply (8) in order to create a magnetic field for influencing the force-displacement characteristic of the spring. Also disclosed is an assembly of such a spring with a conventional spring and/or a damper, as well as a vehicle provided with such a spring.
摘要:
Spring having a first part (1) and a second part (2) moveable relative to each other along a longitudinal axis (L), a gap (3) being provided between the first part (1) and the second part (2), the first part (1) being provided with permanent magnets (4,4′), the second part (2) including soft magnetic material, the second part (2) having a variable permeability along the longitudinal axis (L) thereof for a magnetic field provided by the permanent magnets (4,4′) of the first part (1), wherein the second part (2), for providing the variable permeability for magnetic field, is provided with at least two teeth (5,5′) of soft magnetic material which each face a permanent magnet (4,4′) with a facing surface when the first part (1) is in an aligned position relative to the second part (2), the gap extending between the two teeth and the corresponding permanent magnets, wherein, when the first part is moving out of the aligned position relative to the second part along a longitudinal axis, the total area of the facing surfaces varies.
摘要:
A vibration isolator is provided comprising a base structure, a load structure and at least one vertical air gap formed by opposing and substantially parallel walls of the base structure and the load structure. The opposing walls being at least partly covered by respective arrays of permanent magnets, neighboring magnets in the arrays having alternating magnetization directions, an arrangement of the permanent magnets in the arrays being such that a gravitational force on the load structure is substantially compensated by a net magnetic force of the base structure on the load structure.
摘要:
A moving device comprises at least a first element provided with main magnets and a second element provided with coils. The main magnets are arranged in a grid of rows and columns, wherein main magnets in adjacent rows are oppositely polarised and staggered relative to each other. The coils can be energized for moving the first element relative to the second element in a direction parallel to the rows as well as in a direction parallel to the columns. Auxiliary magnets of the same polarity are disposed between the main magnets at least in a number of rows, wherein the strength of the magnetic field of said auxiliary magnets is different from that of the main magnets.
摘要:
Spring having a first part (1) and a second part (2) moveable relative to each other along a longitudinal axis (L), a gap (3) being provided between the first part (1) and the second part (2), the first part (1) being provided with permanent magnets (4,4′), the second part (2) including soft magnetic material, the second part (2) having a variable permeability along the longitudinal axis (L) thereof for a magnetic field provided by the permanent magnets (4,4′) of the first part (1), wherein the second part (2), for providing the variable permeability for magnetic field, is provided with at least two teeth (5,5′) of soft magnetic material which each face a permanent magnet (4,4′) with a facing surface when the first part (1) is in an aligned position relative to the second part (2), the gap extending between the two teeth and the corresponding permanent magnets, wherein, when the first part is moving out of the aligned position relative to the second part along a longitudinal axis, the total area of the facing surfaces varies.
摘要:
A vibration isolator is provided comprising a base structure, a load structure and at least one vertical air gap formed by opposing and substantially parallel walls of the base structure and the load structure. The opposing walls being at least partly covered by respective arrays of permanent magnets, neighboring magnets in the arrays having alternating magnetization directions, an arrangement of the permanent magnets in the arrays being such that a gravitational force on the load structure is substantially compensated by a net magnetic force of the base structure on the load structure.
摘要:
The invention concerns a floor suitable for generating, converting and/or storing energy, wherein this energy can be generated, converted and/or stored by placing and/or displacing mass thereon, wherein the floor can comprise discrete modules (2), each with an own energy generation system. The discrete modules (2) are couplable in different configurations and form a floor which may or may not be continuous.
摘要:
The invention concerns a floor suitable for generating, converting and/or storing energy, wherein this energy can be generated, converted and/or stored by placing and/or displacing mass thereon, wherein the floor can comprise discrete modules (2), each with an own energy generation system. The discrete modules (2) are couplable in different configurations and form a floor which may or may not be continuous.