Axial run-out of a spinning flexible disk close to a rotating rigid wall

A. M. Gad, Y. C. Rhim

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)


The present work is a numerical and experimental study about the behavior of flexible disks with different thicknesses and different material properties rotating close to fixed and co-rotating rigid flat-stabilizers in open air. The Navier-Stokes equations along with the continuity equation are used to model the fluid flow in the air film between the flexible disk and the rigid stabilizer whereas a linear plate theory is used to model the lateral displacement of the flexible disk. An experimental test-rig is designed to investigate the effects of the rotation speed, the initial gap height and the inlet-hole size on the axial run-out of the different flexible disks. Finally, a comparison between the experimental and the numerical results is made.

Original languageEnglish
Article number4815967
Pages (from-to)2186-2189
Number of pages4
JournalIEEE Transactions on Magnetics
Issue number5
Publication statusPublished - 2009 May

Bibliographical note

Funding Information:
This work was supported by the Korea Science and Engineering Foundation (KOSEF); a grant funded by the Korean government (MEST) (No. R17-2008-040-0100-0). The authors would like to thank N. Onagi (RICOH Company, Ltd. Japan) for the careful preparation of the flexible disks.

All Science Journal Classification (ASJC) codes

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


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