scholarly journals Design of Initial Value Compensation for Mode Switching Controller and Its Application to Magnetic Disk Drives

1995 ◽  
Vol 31 (6) ◽  
pp. 780-788 ◽  
Author(s):  
Takashi YAMAGUCHI ◽  
Kazuhisa SHISHIDA ◽  
Souichi TOHYAMA ◽  
Hiromu HIRAI
Keyword(s):  
Mode Switching ◽  
Disk Drives ◽  
Initial Value ◽  
Magnetic Disk ◽  
Switching Controller

Design of Mode Switching Controller with Initial Value Compensation and Its Application to Disk Drive Servo Control

1996 ◽  
Vol 29 (1) ◽  
pp. 7308-7313
Author(s):  
Takashi Yamaguchi ◽  
Kazuhisa Shishida ◽  
Souichi Tohyama ◽  
Yoshio Soyama ◽  
Haruhiko Hosokawa ◽  
...  
Keyword(s):  
Disk Drive ◽  
Servo Control ◽  
Mode Switching ◽  
Initial Value ◽  
Switching Controller

scholarly journals Improving the Disturbance Resistance of Magnetic Disk Drives by Using Anti-Windup and Model Following Controls with Initial Value Compensation.

2000 ◽  
Vol 43 (3) ◽  
pp. 618-624 ◽  
Author(s):  
Shinsuke NAKAGAWA ◽  
Takashi YAMAGUCHI ◽  
Hidehiko NUMASATO ◽  
Haruhiko HOSOKAWA ◽  
Hiromu HIRAI
Keyword(s):  
Disk Drives ◽  
Initial Value ◽  
Magnetic Disk ◽  
Model Following

A mode-switching controller with initial value compensation for hard disk drive servo control

1997 ◽  
Vol 5 (11) ◽  
pp. 1525-1532 ◽  
Author(s):  
T. Yamaguchi ◽  
K. Shishida ◽  
S. Tohyama ◽  
Y. Soyama ◽  
H. Hosokawa ◽  
...  
Keyword(s):  
Hard Disk Drive ◽  
Hard Disk ◽  
Disk Drive ◽  
Servo Control ◽  
Mode Switching ◽  
Initial Value ◽  
Switching Controller

Failure analysis of laser-textured surfaces

2000 ◽  
Vol 214 (5) ◽  
pp. 471-483 ◽  
Author(s):  
S Chilamakuri ◽  
X Zhao ◽  
B Bhushan
Keyword(s):  
Plastic Deformation ◽  
Operating Conditions ◽  
Disk Drives ◽  
Critical Number ◽  
Textured Surfaces ◽  
Tribological Behaviour ◽  
Magnetic Disk ◽  
Size And Shape ◽  
Ultrahigh Density ◽  
Theoretical Results

Friction/stiction behaviour of ultrahigh-density magnetic disk drives can be controlled by controlling the size and shape of the laser bumps. Tribological behaviour of laser-textured disk surfaces depends on the size and shape of the laser bumps, bump density and operating conditions. In this study, theoretical and experimental analyses have been carried out on nine different laser-textured disk surfaces. Stiction and friction experiments have been carried out on sombrero, V-type and W-type laser-textured disks and these results are compared with theoretical results. A good correlation is obtained between experimental and theoretical results. The effect of laser bump uniformity on critical number of bumps required to prevent plastic deformation and stiction has also been studied.

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