RELATING PROFILE INSTRUMENT MEASUREMENTS TO THE FUNCTIONAL PERFORMANCE OF ROUGH SURFACES.

John I. McCool

Research output: Contribution to journalConference article

1 Scopus citations

Abstract

An easily programmed method is proposed for translating the rms height (R//q) and rms slope ( DELTA q) determined using a profile measuring instrument, into more readily interpreted measures of functional severity such as the density of plastic contacts or the mean real contact pressure. The method involves estimation from the ratio R//q/ DELTA q, of the exponential k of an assumed power function relation between the profile spectrum and the spatial frequency. The microcontact model output computed using both measured and estimated mean square curvature values showed that some output variables, e. g. , plastic contact density, are more discrepant than the estimated and measured curvature values. The results are sufficiently encouraging and the methodology so easy to apply, to commend the practice of routinely supplementing profile measurement data with microcontact model output.

Original languageEnglish (US)
JournalAmerican Society of Mechanical Engineers (Paper)
StatePublished - Dec 1 1986

All Science Journal Classification (ASJC) codes

  • Mechanical Engineering

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