Yang J.P., Chen S.X.
National University of Singapore, US
Keywords: FEM, hard disk drive, head gimbal assembly, piezo-microactuator, vibration
With areal recording density of hard disk drives (HDD) historically growing at an average of 60% per year, it is becoming increasingly more difficult to maintain the precise positioning required of the ever-smaller GMR heads to read and write data. It is predicted that 100 Gb/in 2 HDD areal density would be probably delivered by 2003. To reach such high track densities, the lower mechanical disturbances and higher servo-control bandwidth is required. The dual-stage servo system has been considered as the most promising solution. The motivation of this work is to analyze the effects of the slider-driven micro-actuator placements and profiles on head gimbal assembly (HGA) microactuator sway mode. Results showed that the sway mode frequency was obviously increased by selecting micro-actuator placements and its profiles, optimally.
Journal: TechConnect Briefs
Volume: 1, Technical Proceedings of the 2001 International Conference on Modeling and Simulation of Microsystems
Published: March 19, 2001
Pages: 326 - 329
Industry sector: Sensors, MEMS, Electronics
Topics: Chemical, Physical & Bio-Sensors, MEMS & NEMS Devices, Modeling & Applications
ISBN: 0-9708275-0-4