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- W2077779099 abstract "Techniques which allow realistic surface data to be readily generated have great potential value to engineers because they facilitate the construction of models of physical processes to describe phenomena such as lubrication, wear, reflection of light, sliding friction, etc. Over many years considerable effort has been made by investigators to develop methods to parameterise the topography of engineering components. In comparison only limited effort appears to have been invested in developing techniques for modelling surface topography. This paper seeks to address this imbalance by investigating the potential offered by a comparatively well known analytical tool, the Inverse Fourier Transform (IFT) which is presently little used in surface metrology. The IFT can be applied to reconstruct 3-D surface topography from frequency domain data. In other work these authors have already proposed that some classes of 3-D surface can be reconstructed, i.e., modelled, with a high level of “fidelity” by applying the IFT to a relatively small group of Fourier Transform coefficients drawn from a complete ;real surface spectrum. This paper examines the success of the approach by discussing the form of surfaces reconstructed using this “sparse” spectral data. Illustrations of reconstructed 3-D surfaces are presented along with a qualitative comparison of surface parameters evaluated from the full “parent” surface and the reconstructed surface. (Data representing three processes and a range of nominal roughness values are employed.) Finally, the paper addresses the possible uses for the tool in surface metrology and also briefly explores areas in which further investigations could be undertaken to usefully generate greater insights in to this modelling process." @default.
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- W2077779099 date "1998-05-01" @default.
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- W2077779099 title "Approximate numerical models of 3-d surface topography generated using sparse frequency domain descriptions" @default.
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- W2077779099 doi "https://doi.org/10.1016/s0890-6955(97)00107-7" @default.
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