Optimization of a magnetic disk drive actuator with small skew actuation
Optimization of a magnetic disk drive actuator with small skew actuation
复制标题
小偏斜驱动磁盘驱动器执行器的优化
DOI：
10.1063/1.1456051
复制
发表时间：
2002
影响因子：
3.2
通讯作者：
G. Guo
中科院分区：
文献类型：
--
作者：
Zhimin He;E. Ong;G. Guo
目前，在磁硬盘驱动器中利用音圈马达来致动读/写头元件导致偏斜致动，这需要涉及的微微动过程，从而需要复杂的伺服系统。此外，在垂直记录系统中，小的偏斜致动将放松对极修整的要求。本文提出了一种具有小偏斜致动的磁硬盘驱动器致动器和悬架组件。在本研究中，从致动器枢轴到读/写头的距离被选择为使得偏斜角变化最小化。此后，以相对于致动器纵向方向的倾斜角度将悬挂头组装到致动器臂，以实现绝对小的偏斜致动。有限元建模和实验测量表明，有没有倾斜角的驱动器组件的动态性能没有显着的变化。
Currently the utilization of the voice-coil motor for actuating read/write head elements in magnetic hard disk drives results in a skewed actuation, which necessitates an involved microjogging process and thus a complicated servo system. Furthermore, in perpendicular recording systems, a small skew actuation will relax the requirement on pole trimming. This article presents a magnetic hard disk drive actuator and suspension assembly with small skew actuation. In the present study, the distance from the actuator pivot to the read/write head is chosen so that the skew angle variation is minimized. After that, the suspension head is assembled to the actuator arm at a slant angle with respect to the actuator longitudinal direction to achieve an absolute small skew actuation. Finite element modeling and experimental measurements reveal that there are no significant changes of the actuator assembly dynamic performance with and without the slant angle.