Numerical quasi-static analysis of ultralow flying slider during track-seeking motion over discrete track media

Ki Hoon Kim, Yonghyun Lee, Seokhwan Kim, No Cheol Park, Young Pil Park, Kyoung Su Park, Jingyoo Yoo, Cheol Soon Kim

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

It is important to accurately estimate the flying height (FH) of the ultralow flying slider in hard disk drive (HDD). Especially, during the track-seeking motion, the FH can change by the motion from inner diameter (ID) to outer diameter (OD) and vice versa. The FH variation induced by the track-seeking motion happens over discrete track media (DTM). Therefore, the FH variation during track-seeking is an important issue and it certainly should be considered for DTM. In this research, we performed the track-seeking simulation using quasi-static approximation to reduce the computation time. The effects on groove depth, width, and pitch with the effective skew angle taken into account were investigated with the simulation. As a result, we calculated the absolute change in FH as a function of the effective skew angle and groove depth. Finally, we proposed that the model that considers the effective skew angle over DTM should be adopted in the track-seeking motion-studies.

Original languageEnglish
Article number5297533
Pages (from-to)4990-4993
Number of pages4
JournalIEEE Transactions on Magnetics
Volume45
Issue number11
DOIs
Publication statusPublished - 2009 Nov 1

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Electrical and Electronic Engineering

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