Microsystem Technologies

, Volume 19, Issue 9, pp 1393–1399

Numerical investigation of slider dynamics induced by contacts with disk asperities

  • Wenping Song
  • Pablo A. Salas
  • Andrey Ovcharenko
  • Hao Zheng
  • Frank E. Talke
Technical Paper

DOI: 10.1007/s00542-013-1825-9

Cite this article as:
Song, W., Salas, P.A., Ovcharenko, A. et al. Microsyst Technol (2013) 19: 1393. doi:10.1007/s00542-013-1825-9

Abstract

A time dependent Reynolds equation simulator combined with a finite element-based transient contact model between a slider and a disk asperity is used to study slider dynamics induced by contacts with disk asperities. The flying height change at the trailing edge of the slider is investigated as a function of asperity height, asperity diameter, and the spacing between the thermal protrusion of a thermal-flying control slider and a disk asperity. The effect of material properties of the disk asperities is studied. Slider vibrations corresponding to the first and the second pitch modes are excited by disk asperities.

Copyright information

© Springer-Verlag Berlin Heidelberg 2013

Authors and Affiliations

  • Wenping Song
    • 1
    • 2
  • Pablo A. Salas
    • 2
  • Andrey Ovcharenko
    • 3
  • Hao Zheng
    • 3
  • Frank E. Talke
    • 2
  1. 1.Harbin Institute of TechnologyHarbinChina
  2. 2.Center for Magnetic Recording ResearchUniversity of CaliforniaSan DiegoUSA
  3. 3.Western Digital CorporationSan JoseUSA