Abstract
The airflow of a 10,000 rpm hard disk drive is simulated using the LES turbulent model. The critical parameters for using LES model to get the correct/reliable result are discussed. The flow induced vibration of the head gimbal assembly is calculated with the obtained fluid force acting on the head gimbal assembly (HGA) and compared with measured results. Good agreement is observed between the measured and simulated results. The optimization of the airflow is further carried out to reduce the flow induced vibration of the HGA. It is found that almost 50% reduction of flow induced vibration of the HGA can be achieved with the proposed modifications for airflow optimization.
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References
Aruga K, Suwa M, Shimizu K, Watanabe T (2007) A study on position error caused by FIV using helium filled hard drives. IEEE Trans Magn 43(9):3750–3755
Frank P, Wood R (2006) A perspective on the future of hard disk drive (HDD) Technology. APMRC 2006, Singapore, FB-01
Humphrey JAC, Haj-Harir H, Iwasaki T, Kazemi M, Rosales L (2002) Modeling and controlling flow induced suspension-head unit vibrations in hard disk drives. Microsyst Technol 8(6):375–382
Ikegawa M, Hirono Y, Mukai H, Kaiho M (2006) Decreasing airflow velocity in hard disk drives with a spoiler and bypass. IEEE Trans Magn 42(10):2594–2596
Kazemi M, Tokuda A (2007) An investigation on flow-induced off-track vibration of head gimbal assembles in hard disk drives. ISPS 2007, USA, SAFV-A3
Nakamura S, Aduma R, Takahashi H, Wakatsuki K, Hagiya S (2005) Flow induced vibration of a head gimbal assembly under various conditions. IEEE Trans Magn 41(2):769–773
Pope SB (2000) Turbulent flows. Cambridge University Press, Cambridge
Shimizu H, Shimizu T, Tokuyama M, Masuda H, Nakamura S (2003) Numerical simulation of positioning error caused by air-flow-induced vibration of head gimbals assemble in hard disk drive. IEEE Trans Magn 39(2):806–811
Tan CS, Suriadi MA (2007) Flow induced vibration caused by weight-saving hole on actuator arm using large eddy simulation. ISPS 2007, USA, SAFV-B4
Tsuda N, Kubotera H, Tatewaki M, Noda S, Hashiguchi M, Maruyama T (2003) Unsteady analysis and experimental verification of the aerodynamic vibration mechanism of HDD arms. IEEE Trans Magn 39(2):819–825
Zhang QD, Yip TH, Guo GX (2008) Flow-induced vibration in hard disk drives. Int J Prod Dev 5(3–4):390–409
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Zhang, Q.D., Tan, C.S., Sundaravadivelu, K. et al. Mitigation of flow induced vibration of head gimbal assembly. Microsyst Technol 16, 213–219 (2010). https://doi.org/10.1007/s00542-009-0817-2
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DOI: https://doi.org/10.1007/s00542-009-0817-2