Mechanical stabilizer-tuned damper for high field open magnet

In a high field open superconducting magnet assembly, said assembly including a first superconductive main coil assembly, a second superconductive main coil assembly, and at least one support beam, said first superconductive main coil assembly having an upper assembly surface and a first and second bore defined within said upper surface and said first and second superconductive coil assmblies being axially aligned, a mechanical stabilizing assembly attached to one of said bores to minimize vibrational movement of the first superconductive main coil assembly relative to the second superconductive main coil assembly comprising:

• a) a support means mountable within the bore of said first superconductive main coil assembly;
• b) a plurality of masses removably attached to said support means for matching magnet coil motion frequency of the first superconductive main coil assembly relative to its vibrational movement towards and away from the second superconductive main coil assembly to the tuning frequency of the mechanical stabilizing assembly and for matching the direction of magnet coil motion;
• and
• c) wherein the magnitude between vibration of said magnet coil assemblies in the axial direction is decreased when the amount and location of the mass is properly adjusted.

In a high field open superconducting magnet assembly, said assembly including a generally horizontal first superconductive main coil assembly having a first and second bore, a second superconductive main coil assembly axially aligned with the first superconductive main coil assembly, and at least one support beam, a mechanical stabilizing assembly mounted on said superconducting magnet assembly to minimize vibration effects between the first superconductive main coil assembly relative to the second superconductive main coil assembly of the high field open superconducting magnet assembly comprising:

• a) a linear bearing,
• b) a support base,
• c) a central load bearing bolt, and
• d) a plurality of removable and movable non-magnetic and extremely low electrically conductive plates of various weights for matching motion frequency of the first superconductive main coil assembly, in relation to the second superconductive main coil assembly, to the tuning frequency of the mechanical stabilizing assembly and to dampen the direction of motion of the first superconductive main coil assembly in relation to the second superconductive main coil assembly,
• e) said load bearing rod being mounted through the linear bearing and the support base,
• f) wherein the magnitude of vibration between the first superconductive main coil assembly and the second main coil assembly of said superconducting magnet assembly decreases.

An open architecture superconducting magnet assembly comprising

• a coil assembly having
• a generally cylindrical lower bore, said bore having a generally horizontal top,
• a lower superconductive main coil surrounding the lower bore,
• a nonmagnetizable support beam rising from the lower bore,
• an upper bore situated above the lower bore and supported by the support beam,
• an upper superconductive main coil surrounding the upper bore, and
• a generally cylindrical upper bore flat defined within the upper bore;
• and
• a mechanical stabilizer tuned damper assembly attached to the upper bore flat for reducing the vibration of the upper bore and upper main coil having,
• a base attached to the upper bore flat,
• a first support arm having a lower end attached to the base and an upper end, said upper end being perpendicular to the base and having an aperture between the upper end and the lower end of the support arm,
• a second support arm having a lower end attached to the base and an upper end, said support arm being perpendicular to the base and having an aperture aligned with the first aperture between the upper end and the lower end of the support arm,
• a linear bearing seated within the aperture in the second support arm,
• a central load bearing bolt inserted through the aperture in the first support arm and the linear bearing in the second support arm,
• a first securement nut securing the bolt to the first support arm,
• a second securement nut securing the bolt to the second support arm,
• a plurality of removeable nonmagnetic plates of extremely low electrical conductivity each having a generally central aperture that accomodates the central load bearing bolt, and
• a plurality of spacers used to separate the plates such that the mass damper reduces the amplitude of the dynamic response of the upper bore and upper main magnet relative to the lower bore and lower main magnet.

An open architecture superconducting magnet assembly comprising

• a coil assembly having
• a generally cylindrical lower bore, said bore having a generally horizontal top,
• a lower superconductive main coil surrounding the lower bore,
• a nonmagnetizable support beam rising from the lower bore,
• an upper bore situated above the lower bore and supported by the support beam,
• an upper superconductive main coil surrounding the upper bore, and
• a generally cylindrical upper bore flat defined within the upper bore;
• and
• a mechanical stabilizer tuned damper assembly attached to the upper bore flat for reducing the vibration of the upper bore and upper main coil having,
• a base attached to the upper bore flat,
• a first support arm having a lower end attached to the base and an upper end, said upper end being perpendicular to the base and having an aperture between the upper end and the lower end of the support arm,
• a second support arm having a lower end attached to the base and an upper end, said support arm being perpendicular to the base and having an aperture aligned with the first aperture between the upper end and the lower end of the support arm,
• a linear bearing seated within the aperture in the second support arm,
• a central load bearing bolt inserted through the aperture in the first support arm and the linear bearing in the second support arm,
• a first securement nut securing the bolt to the first support arm,
• a second securement nut securing the bolt to the second support arm,
• a plurality of removeable nonmagnetic plates of extremely low electrical conductivity each having a generally central aperture that accomodates the central load bearing bolt, and
• a plurality of spacers used to separate the plates such that the mass damper reduces the amplitude of the dynamic response of the upper bore and upper main magnet relative to the lower bore and lower main magnet.