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Dynamic modelling of the fidelity of random surface measurement by the stylus method

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Tian, Yanling, Liu, X., Zhang, D. and Chetwynd, D. G. (Derek G.), 1948-. (2009) Dynamic modelling of the fidelity of random surface measurement by the stylus method. Wear, Vol.266 (No.5-6). pp. 555-559. ISSN 0043-1648

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Official URL: http://dx.doi.org/10.1016/j.wear.2008.04.061

Abstract

A numerical simulation has been used to systematically investigate the characteristics of a stylus surface profiling instrument. The model bridges together previously used concepts to incorporate both tip size and tip dynamics. The dynamics incorporate a tip flight phenomenon, inferring detachment from zero value of the reaction force and the trajectory from a free vibration solution to a second order system. Tip shape is handled by a rigid kinematic model. Following brief discussions of the modelling and the process for generating test profiles with defined correlation lengths, the influences of the inherent parameters of the stylus instrument and the testing method on the measurement fidelity are examined. The tip shape effect of the stylus instrument is also considered in the dynamic measurement. It is noted that the finite tip size can increase the critical scanning speed to avoid tip flight, but decreases the signal fidelity of the measurement due to the bridging effect.

Item Type:	Journal Article
Subjects:	Q Science > QA Mathematics T Technology > TA Engineering (General). Civil engineering (General) T Technology > TJ Mechanical engineering and machinery
Divisions:	Faculty of Science > Engineering
Library of Congress Subject Headings (LCSH):	Surfaces (Technology) -- Measurement, Measuring instruments -- Mathematical models, Kinematics
Journal or Publication Title:	Wear
Publisher:	Elsevier BV
ISSN:	0043-1648
Official Date:	15 March 2009
Volume:	Vol.266
Number:	No.5-6
Number of Pages:	5
Page Range:	pp. 555-559
Identification Number:	10.1016/j.wear.2008.04.061
Status:	Peer Reviewed
Publication Status:	Published
Access rights to Published version:	Restricted or Subscription Access
Funder:	Guo jia zi ran ke xue ji jin wei yuan hui (China) [National Natural Science Foundation of China] (NSFC), Natural Science Foundation of Tianjin (NSFT)
Grant number:	50705064 (NSFC), 08JCYBJC01400 (NSFT)
Version or Related Resource:	This item was also presented at the 11th International Conference on Metrology and Properties of Engineering Surfaces, Huddersfield, U.K., Jul 17 - 20, 2007
Title of Event:	11th International Conference on Metrology and Properties of Engineering Surfaces
Location of Event:	Halmstad, SWEDEN
Date(s) of Event:	2008
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URI:	http://wrap.warwick.ac.uk/id/eprint/28231