Flow-induced vibration in Hard Disk Drives
by Qide Zhang, Teck-Hong Yip, Guoxiao Guo
International Journal of Product Development (IJPD), Vol. 5, No. 3/4, 2008

Abstract: The paper introduces and discusses the impact of flow induced vibrations on the performance of Hard Disk Drives (HDD). Two major flow structure interactions of HDDs, flow-induced disk flutter and flow-induced vibration of head gimbal assembly, are discussed. Methods of visualising, measuring and predicting flow field in HDDs are first introduced. Subsequently, methodologies are discussed aiming at measuring disk flutter, calculating the effects of disk flutter on track mis-registration and reducing the effects of disk flutter. Lastly, future research topics on airflow in HDDs are discussed.

Online publication date: Tue, 11-Mar-2008

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