An invention that reduces the vibration of objects or systems by using the contact stress of three ball bearings stacked at each layer, at least two layers, within the cylindrical surface of the housing. There is a retainer at the top of the layer for pressing all the ball bearings and there is a gap between the retainer and the housing so that they do not touch each other. The retainer have mounting plane of which the angles can adjust to be in line with the mounting plane of the housing. When placing at least three inventions among objects or systems that one wishes to reduce the vibration by placing the mounting plane of the housing directly in contact with such objects or system, the invention will be completely motionless, keep the contact stress constant and at its maximum level and increase the vibration's damping ration of the inventions.

A voice coil motor direct-driven active vibration isolation and leveling integrated platform. The voice coil motor direct-drive active vibration isolation and leveling integrated platform includes a moving platform, a base, a driving mechanism and a vibration isolation and leveling composite mechanism; the moving platform is rotatably disposed on the base around the X-axis and the Y-axis through the vibration isolation and leveling composite mechanism; the driving mechanism is used to drive the moving platform to perform leveling movement, and the force exerted by the driving mechanism on the moving platform is distributed symmetrically around the circumference of the moving platform.

A vibration isolation system includes at least one first region and at least one second region that are positioned mutually, at least one first hinge member engaged with said first region, at least one second hinge member engaged with said second region and at least one lever connected with said first hinge member and said second hinge member to be at least partially movable in the direction of at least one first axis. Accordingly, at least one lever guiding element is used to minimize vibration transmission between the first region and the second region and said lever guiding element is configured to bring an instantaneous center of rotation depending on the input vibration frequency of the first region to be aligned with the second hinge element attached to the second region which is required to be protected from vibration.

A driveline assembly for an electric vehicle for driving a pair of wheels. The driveline assembly includes an electric motor having an output shaft. A differential is coupled with the output shaft and is configured to receive torque from the output shaft. A pair of primary shafts are each coupled with the differential and configured to receive torque from the differential. A pair of end reducers are each configured to receive torque from one of the primary shafts and provide a gear reduction and torque multiplying effect at a wheel output. A controller is connected to the electric motor and is configured to superimpose a torque fluctuation at the output shaft to counteract vibrations in the driveline assembly.

A system and method of a rolling pendulum base system includes a base including a spherically shaped, concave upper base surface, multiple bearings supported within the spherically shaped, concave upper base surface, a slider including a slider body, a spherically shaped, convex upper slider surface on an upper end of the slider body and a convex lower slider surface on the lower end of the slider body, the convex lower slider surface disposed on the bearings, and a pedestal including a pedestal body, a spherically shaped, concave lower pedestal surface on a lower end of the pedestal body and a flat upper pedestal surface on an upper end of the pedestal body, the concave lower pedestal surface disposed on the convex upper slider surface.

A voice coil motor direct-driven active vibration isolation and leveling integrated platform. The voice coil motor direct-drive active vibration isolation and leveling integrated platform includes a moving platform, a base, a driving mechanism and a vibration isolation and leveling composite mechanism; the moving platform is rotatably disposed on the base around the X-axis and the Y-axis through the vibration isolation and leveling composite mechanism; the driving mechanism is used to drive the moving platform to perform leveling movement, and the force exerted by the driving mechanism on the moving platform is distributed symmetrically around the circumference of the moving platform.

An energy dissipation device is provided for creating a torturous energy flow path between a piece of equipment and a shelf that supports the piece of equipment. The energy dissipation includes a cover plate from which extends an externally threaded extension, and includes a cone component. The cone component has a base wall from which extends a cone having a tip. Together the base wall and the surrounding sidewall define an energy dissipation component recess. An energy dissipation component made of an energy dissipation material is disposed in the energy dissipation component recess. In another preferred embodiment there is a multiple piece energy dissipation device that has a cone assembly. Double, triple layer, and spaced triple layer energy dissipation devices are provided in other embodiments. In another preferred embodiment there is an adjustable energy dissipation device and a single layer adjustable energy dissipation device.

An apparatus includes an upper member, a lower member disposed beneath the upper member, and a spring disposed between the upper member and the lower member. The upper member has a pin extending downward therefrom. The lower member has a seat configured to receive a free end of the pin. The spring surrounds the pin, and has a free length that is less than the length of the pin. In an unloaded state, the free end of the pin contacts the seat and the spring applies a compressive force to prevent relative lateral movement between the upper member and the lower member. When the lower member carries a load in a loaded state, the load applies a tensile force to the spring that forms a gap between the free end of the pin and the seat, which allows relative lateral movement between the upper member and the lower member.

In some embodiments, a vibration isolator comprises a housing having a base portion and a wall portion. A plurality of bearings are disposed within the housing. The bearings are arranged in a configuration comprising a plurality of layers. A first layer comprises a bearing and a second layer comprises a plurality of bearings. Each bearing in the second layer contacts the wall portion of the housing. Each bearing comprises a plurality of contact points in contact with another portion of the vibration isolator, and no two contact points of a bearing are diametrically opposed.

A collapsible platform for supporting a device such as a vibration source includes a pair of spaced-apart platform members each having at least one upward-facing support surface for partially supporting the vibration source, at least one base member configured to rest on a generally horizontal support surface and to support the pair of platform members, and at least one cross member extending between the pair of platform members and fixed to each of the pair of platform members to fix a separation distance between the platform members.