Gih Keong Lau and Hejun Du 2006 J. Micromech. Microeng. 16 1416 doi:10.1088/0960-1317/16/7/040
Gih Keong Lau1 and Hejun Du2
Show affiliationsA new design of inline-actuated suspension is developed for application in the dual-stage head positioning of hard disk drives (HDD). This design exploits a parallel mechanism to convert longitudinal piezoelectric actuation into a lateral stroke. It is embodied in an elongated portion of a slender load beam. Besides serving the intended function of adequate stroke, the new design significantly improves shock resistance and dynamics. Its sway frequency improves by 19%, as compared to a push–pull design. In addition, the piezoelectric plate for inline actuation is subjected to 66% less shock-induced stress than the pair for push–pull actuation. The new actuator only requires standard manufacturing and assembly processes for realization and no costly miniaturization.
85.70.Li Other magnetic recording and storage devices (including tapes, disks, and drums)
85.50.-n Dielectric, ferroelectric, and piezoelectric devices
Issue 7 (July 2006)
Received 10 March 2006, in final form 16 May 2006
Published 8 June 2006
Gih Keong Lau and Hejun Du 2006 J. Micromech. Microeng. 16 1416
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