Modeling of head/disk interface - An average flow model

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

The average flow model is utilized to derive an average Reynolds type equation, which includes the effects of surface roughness, gas rarefaction, and accommodation coefficients (ACs). The related flow factors (pressure flow factors, shear flow factors) are derived in closed form and are expressed as functions of roughness parameters (standard deviation of the composite roughness, Peklenik number and film thickness ratio), Knudsen number, and ACs. Finally, the effects of surface roughness, gas rarefaction, and ACs on the bearing performance of magnetic head sliders with fixed configurations are considered.

Original languageEnglish
Pages (from-to)669-676
Number of pages8
JournalTribology Letters
Volume17
Issue number3
DOIs
Publication statusPublished - 2004 Oct 1

Fingerprint

accommodation coefficient
rarefaction
Surface roughness
surface roughness
roughness
Bearings (structural)
Knudsen flow
thickness ratio
Gases
Magnetic heads
gases
shear flow
standard deviation
film thickness
Shear flow
Film thickness
composite materials
configurations
Composite materials

All Science Journal Classification (ASJC) codes

  • Mechanics of Materials
  • Mechanical Engineering
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films

Cite this

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Modeling of head/disk interface - An average flow model. / Li, Wang-Long.

In: Tribology Letters, Vol. 17, No. 3, 01.10.2004, p. 669-676.

Research output: Contribution to journalArticle

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