Computational SimulationNo Access

SHOCK RESPONSE OF THE CLAMPED DISK IN SMALL FORM FACTOR HARD DISK DRIVE

BIN GU

School of Mechanical and Aerospace Engineering, Nanyang Technological University, 50 Nanyang Avenu, 639798, Singapore

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DONGWEI SHU

School of Mechanical and Aerospace Engineering, Nanyang Technological University, 50 Nanyang Avenu, 639798, Singapore

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BAOJUN SHI

School of Mechanical and Aerospace Engineering, Nanyang Technological University, 50 Nanyang Avenu, 639798, Singapore

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GUOXING LU

School of Mechanical and Aerospace Engineering, Nanyang Technological University, 50 Nanyang Avenu, 639798, Singapore

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https://doi.org/10.1142/S0217979208047122Cited by:2 (Source: Crossref)

Abstract

As small form factor (one-inch and smaller) hard disk drives are widely used in portable consumer appliances and gadgets, their mechanical robustness is of greater concern. In the previous work, it is found that when the disk is more tightly clamped, it helps to decrease the shock response of the disk and then avoid the head slap. In this paper, the real boundary condition of the disk for a small form factor hard disk drive from Seagate is investigated numerically. The disk is clamped between the clamp and the hub. The shock response of the disk under a half-sine acceleration pulse is simulated by using the finite element method. In the finite element model, both contact between disk and clamp and contact between disk and hub are considered. According to the simulation results, how to decrease the shock response of the disk is suggested.

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