抄録
Reducing rigid-body rotational vibration is essential for achieving high-accuracy, high-speed head positioning in hard disk drives. Force transmission in various actuator systems has been discussed, such as a conventional mechanism, a VCM-yoke supporting mechanism, a reaction-force isolating mechanism, and a twin-drive mechanism. The conditions to prevent from rigid-body rotational vibration have been shown. Using a two-degree-of-freedom vibration model, torque transmission to the base due to the reaction force has been discussed. New mechanisms to prevent from rigid-body rotational vibration and to achieve high-accuracy, high-speed head positioning have been proposed.
