High-bandwidth moving-magnet actuator for hard disk drives

被引：0

作者：

Natl Univ of Singapore, Singapore, Singapore ^{[1
]}

机构：

来源：

IEEE Trans Magn | / 5 pt 1卷 / 2632-2634期

关键词：

Bandwidth - Finite element method - Hard disk storage - Modal analysis - Servomotors;

D O I：

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学科分类号：

摘要：

This paper describes an experimental moving-magnet actuator (HBX) designed for a 3.5 inches, 2-disk, hard drive. The specific design objective is to increase the small-signal bandwidth of the actuator without sacrificing good seek performance. The proposed actuator comprises a stiffened arm structure and an orthogonal drive, moving-magnet motor. The magnetics and mechanics of the motor are studied through finite element analysis (FEA). A prototype actuator is built and tested using static forces and modal analysis. These results agree with the FEA results and provide valuable insight into the design of moving magnet motors.

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