Numerical Investigation of Flow Structure Interaction Coupling Effects in Hard Disk Drives

  title={Numerical Investigation of Flow Structure Interaction Coupling Effects in Hard Disk Drives},
  author={E. Ng and Qing Ren Teo and N. Liu},
This paper studies the flow structural interaction (FSI) within a hard disk drive (HDD) through the use of a novel coupling method. The interaction studied was the fluid induced vibration in the HDD. A two step coupling approach was used, where the fluid and structural components were solved sequentially. The result obtained was a ratio of 0.65 between the vibration amplitudes of a fixed head stack assembly (HSA) and a moving HSA. The ratio was next applied on a real 3.5 inch HDD, to allow the… Expand
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