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Power spectral density (PSD) analysis of worn surface

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TitlePower spectral density (PSD) analysis of worn surface
Publication TypeConference Proceedings
Year of Publication2010
AuthorsBarányi, I., Á. Czifra, S. Horváth, and K. G.
Conference NameGépészet 2010
Pagination1-6
Date Published05/2010
Conference LocationBudapest
Publication Languageenglish
ISBN Number978-963-313-007-0
Keywordsfractal dimension, Microtopography, Power spectral density, Wear
Abstract

Surface microtopography plays a dual role in the course of friction and wear processes. It affects the contact and temperature conditions, and it undergoes significant changes in accordance with the wear mechanism. Power spectral density (PSD) analysis of microtopographies provides opportunities for understanding more deeply the wear processes. Wear experiments and surface roughness measurements before and after wear were performed. Investigations extended to wear in the course of the non-lubricated ferrodo-steel material pairs, and lubricated camshaft-bushing pairs. PSD analysis of topographies was prepared using fractal dimension parameter to display the changes of topographies.