TY - JOUR
T1 - Design and dynamic analysis of suspension for dual actuator type HDD
AU - Yoon, Joon Hyun
AU - Yang, Hyun Seok
AU - Park, Young Pil
N1 - Copyright:
Copyright 2004 Elsevier Science B.V., Amsterdam. All rights reserved.
PY - 2001/1
Y1 - 2001/1
N2 - The track density of HDD is increasing rapidly as the recording density drastically increases, which leads to the need for a higher servo bandwidth. To this end, a dual actuator system for HDD has been suggested as a possible solution. Furthermore, the suspension resonance frequency in the radial access direction is becoming a more important factor for the servo bandwidth increase. However, the improvement of these frequencies may affect the shock resistance performance and spring constant. In this work, we have investigated a suspension design scheme possessing a microactualor as a dual actuator and also achieving high-mechanical resonance frequencies, shock resistance characteristics, and a low-spring constant. Using finite element analysis, the design parameters, which play key roles for dynamic characteristics of a suspension, are investigated. Design parameters are deduced based on physical insight and obsen-ations. It is confirmed that the proposed suspension has the capability affine tracking motion as a microactuator, due to its hinge structure on the spring region, and achieves higher mechanical resonance frequencies in the 2nd torsion mode and sway mode with a high-shock resistance and a low-spring constant.
AB - The track density of HDD is increasing rapidly as the recording density drastically increases, which leads to the need for a higher servo bandwidth. To this end, a dual actuator system for HDD has been suggested as a possible solution. Furthermore, the suspension resonance frequency in the radial access direction is becoming a more important factor for the servo bandwidth increase. However, the improvement of these frequencies may affect the shock resistance performance and spring constant. In this work, we have investigated a suspension design scheme possessing a microactualor as a dual actuator and also achieving high-mechanical resonance frequencies, shock resistance characteristics, and a low-spring constant. Using finite element analysis, the design parameters, which play key roles for dynamic characteristics of a suspension, are investigated. Design parameters are deduced based on physical insight and obsen-ations. It is confirmed that the proposed suspension has the capability affine tracking motion as a microactuator, due to its hinge structure on the spring region, and achieves higher mechanical resonance frequencies in the 2nd torsion mode and sway mode with a high-shock resistance and a low-spring constant.
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M3 - Article
AN - SCOPUS:0035639438
VL - 3
SP - 47
EP - 51
JO - Microsystem Technologies
JF - Microsystem Technologies
SN - 0946-7076
IS - 1-2
ER -