An integrated online dynamic balance terminal by 3D rapid prototyping includes a central tapered hole formed at a lower portion thereof, a plurality of identical balance cavities peripherally and spacedly formed on the integrated online dynamic balance terminal. Each two the adjacent balance cavities are separated by a cavity partition. The integrated online dynamic balance terminal further has a plurality of guiding channels indently formed on an inner peripheral surface thereof, wherein each of the four guiding channels communicates with a corresponding balance cavity through a corresponding trapezoidal hole. The integrated online dynamic balance terminal has a plurality of bored holes spacedly formed on an engagement surface. The integrated online dynamic balance terminal is configured from 3D rapid prototyping so as to form an integral one-piece structure, wherein some portions requiring high precision are arranged to undergo additional machining processes.

A dynamic balancing assembly for a laundry apparatus includes a control unit, one or more counterweight devices, and one or more clocksprings. The one or more counterweight devices are configured to be orbited about a primary rotation axis of the laundry apparatus to counteract a load imbalance in a drum of the laundry apparatus. The one or more clocksprings communicatively couple each of the one or more counterweight devices to the control unit.

A dynamic balancing assembly for a laundry apparatus includes a control unit, one or more counterweight devices, and one or more clocksprings. The one or more counterweight devices are configured to be orbited about a primary rotation axis of the laundry apparatus to counteract a load imbalance in a drum of the laundry apparatus. The one or more clocksprings communicatively couple each of the one or more counterweight devices to the control unit.

A vibration-cancelling module includes a first rotor having a first eccentric body, a second rotor having a second eccentric body, and a stator assembly in electromagnetic communication with the first and second rotors. A central shaft extends between the first and second rotors. The first and second rotors rotationally operate about a common rotational axis with respect to one another between a balanced position and a plurality of eccentric positions. A controller has an accelerometer assembly and a rotor-position sensor assembly. The controller delivers an electrical current to the stator assembly at least based upon the accelerometer assembly. A common housing contains the first and second rotors, the stator assembly, the central shaft and the controller.

A vibration-cancelling module includes a first rotor having a first eccentric body, a second rotor having a second eccentric body, and a stator assembly in electromagnetic communication with the first and second rotors. A central shaft extends between the first and second rotors. The first and second rotors rotationally operate about a common rotational axis with respect to one another between a balanced position and a plurality of eccentric positions. A controller has an accelerometer assembly and a rotor-position sensor assembly. The controller delivers an electrical current to the stator assembly at least based upon the accelerometer assembly. A common housing contains the first and second rotors, the stator assembly, the central shaft and the controller.

A component formed by an additive manufacturing process includes a body and a first vibration damper. The body is formed from an additive manufacturing material, and defines at least a first cavity completely enclosed within the body. The first vibration damper is disposed within the first cavity. The first vibration damper includes a flowable medium and a first solidified element formed from the additive manufacturing material. The flowable medium surrounds the first solidified element.

A gas turbine engine includes a fan rotating with a fan shaft, a compressor and a turbine section. The turbine section includes a fan drive rotor driving the fan through the fan shaft. At least one bearing is between an inner static case and the fan shaft. The inner static case is cantilever mounted to static structure, and has a forward end spaced in a forward direction toward the fan rotor from a cantilever mount. A damping assembly is associated with the inner static case.

A tire-balancing including a tire-balancing material in a first pocket of the system and at least one tire accessory such as a tire-valve core in the second pocket of the system. The first and second pockets are spatially separated from one another with a seal and a line of perforation. The first pocket has a duct dimensioned to release the particles, oriented towards the second container, and sealed from the second container. The methods for fabrication of the tire-balancing system and balancing a tire with the use of such system. Before use, the first pocket is opened by separating the second pocket along the perforation, and placed in a tire let a flow of the particles from inside the first container into the tire through the duct. The tire-valve core is removed from the second container and applied to the wheel.

A tire-balancing including a tire-balancing material in a first pocket of the system and at least one tire accessory such as a tire-valve core in the second pocket of the system. The first and second pockets are spatially separated from one another with a seal and a line of perforation. The first pocket has a duct dimensioned to release the particles, oriented towards the second container, and sealed from the second container. The methods for fabrication of the tire-balancing system and balancing a tire with the use of such system. Before use, the first pocket is opened by separating the second pocket along the perforation, and placed in a tire let a flow of the particles from inside the first container into the tire through the duct. The tire-valve core is removed from the second container and applied to the wheel.

The present damper device includes a large hysteresis mechanism, generating a large hysteresis torque, and a hysteresis inhibiting mechanism. In a positive-side torsional region, when relative rotation is performed until reaching a maximum torsion angle from a neutral position, the hysteresis inhibiting mechanism deactivates the large hysteresis mechanism until the relative rotation reaches a first torsion angle from the neutral position, but activates the large hysteresis mechanism until the relative rotation reaches the maximum torsion angle from the first torsion angle; and when the relative rotation is performed until reaching the neutral position from the maximum torsion angle, the hysteresis inhibiting mechanism deactivates the large hysteresis mechanism until the relative rotation reaches a second torsion angle less than the first torsion angle from the maximum torsion angle, but activates the large hysteresis mechanism until the relative rotation reaches the neutral position from the second torsion angle.