scholarly journals A Study on Double Gap Magnetic Head Positioning System for Hard Disk Drive

1994 ◽  
Vol 18 (S_1_PMRC_94_1) ◽  
pp. S1_41-44
Author(s):  
Satoru SEKO ◽  
Toru TAKEDA
Keyword(s):  
Hard Disk Drive ◽  
Hard Disk ◽  
Disk Drive ◽  
Positioning System ◽  
Magnetic Head ◽  
Head Positioning

Optimum Design of Magnetic Head Slider Under Static and Dynamic Operation Conditions of Hard Disk Drive

1999 ◽  
Author(s):  
Yasuhisa Hattori ◽  
Hiromu Hashimoto ◽  
Masayuki Ochiai
Keyword(s):  
Objective Function ◽  
Hard Disk Drive ◽  
Optimum Design ◽  
Hard Disk ◽  
Disk Drive ◽  
Magnetic Head ◽  
Head Slider ◽  
Dynamic Operation ◽  
Operation Conditions ◽  
Design Variables

Abstract The aim of this paper is to develop the general methodology for the optimum design of magnetic head slider for improving the spacing characteristics between head slider and disk surfaces under the static and dynamic operation conditions of hard disk drive and to present an application of the methodology to IBM 3380-type slider design. In the optimum design, the objective function is defined as the weighted sum of minimum spacing, maximum difference of spacing due to variation of radial location of head and maximum amplitude ratio of slider motion. Slider rail width, taper length, taper angle, suspension position and preload are selected as the design variables. Before the optimization of magnetic head slider, the effects of these five design variables on the objective function are examined by the parametric study, and then the optimum design variables are determined by applying the hybrid optimization technique combining the direct search method and the successive quadratic programming (SQP). From the results obtained, the effectiveness of optimum design on the spacing characteristics of magnetic head slider is clarified.

Realization of a hard disk drive head servo-positioning system with a voltage-driven voice-coil motor

2003 ◽  
Vol 9 (4) ◽  
pp. 271-281 ◽  
Author(s):  
R. Oboe ◽  
F. Marcassa ◽  
P. Capretta ◽  
F. Chrappan Soldavini
Keyword(s):  
Hard Disk Drive ◽  
Voice Coil Motor ◽  
Hard Disk ◽  
Disk Drive ◽  
Positioning System

Flow induced vibration of magnetic head suspension in hard disk drive

1986 ◽  
Vol 22 (5) ◽  
pp. 1022-1024 ◽  
Author(s):  
Y. Yamaguchi ◽  
K. Takahashi ◽  
H. Fujita ◽  
K. Kuwahara
Keyword(s):  
Hard Disk Drive ◽  
Hard Disk ◽  
Disk Drive ◽  
Magnetic Head ◽  
Flow Induced Vibration
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