A Numerical Simulation of the Head-Disk Assembly in Magnetic Hard Disk Files: Part II—Solution of the Coupled System

[+] Author and Article Information
O. J. Ruiz, D. B. Bogy

Computer Mechanics Laboratory, Department of Mechanical Engineering, University of California, Berkeley, Calif. 94720

J. Tribol 112(4), 603-613 (Oct 01, 1990) (11 pages) doi:10.1115/1.2920304 History: Received October 02, 1989; Revised May 15, 1990; Online June 05, 2008


This paper is a continuation of Part I, which considers numerical models for the various components of the HDA. Here the solvers are coupled and the resulting numerical simulator is used to study the slider-disk spacing variation that occurs when a slider passes a bump on the disk. The results are compared with a simpler simulator and it is found that new information is obtained here that illustrates the role of suspension resonances in slider-disk spacing. We also study slider-disk spacing variations due to track accessing for both linear and rotary actuators. Finally we conduct a similar study for the problem of actuator crash stop. Of particular interest is the way in which the spacing variation depends on steady flying height. Low flying sliders have stiffer air bearings, which excite more suspension resonances. On the other hand, these sliders have less spacing change during track accessing and crash stop compared to higher flying sliders.

Copyright © 1990 by The American Society of Mechanical Engineers
Your Session has timed out. Please sign back in to continue.






Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related Journal Articles
Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In