Vibration analysis of stylus instrument for random surface measurement
Tian, Yanling, Liu, X., Chetwynd, D. G. (Derek G.), 1948-, Shirinzadeh, B. and Zhang, D.. (2010) Vibration analysis of stylus instrument for random surface measurement. Precision Engineering - Journal of the International Societies for Precision Engineering and Nanotechnology, Vol.34 (No.3). pp. 586-591. ISSN 0141-6359
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Official URL: http://dx.doi.org/10.1016/j.precisioneng.2010.03.0...
This paper presents dynamic modeling and vibration analysis methodologies for investigating surface profile fidelity in stylus instruments, using a novel dynamic model that takes account of Hertzian contact stiffness between the stylus tip and surface. It briefly describes generation methods for modelling random surfaces and finite tips, which provide input for this nonlinear dynamic system. The influence of the damping ratio on the dynamic performance of the stylus instrument is examined and tends to confirm other recent work. The best combinations of signal fidelity and measurement speed occur with damping ratios considerably higher than conventionally used, mainly because the damping can suppress or delay tip flight. Residual vibrations associated with start-up transients are shown to have potentially serious effects on the signal fidelity. Hence, the responses of the stylus system to three typical velocity control signals are investigated. The normally used step control signal can generate relatively large residual vibration, while slope control and, even better, cycloidal control signal can suppress the residual vibration and guarantee the signal fidelity.
|Item Type:||Journal Article|
|Subjects:||T Technology > T Technology (General)|
|Divisions:||Faculty of Science > Engineering|
|Library of Congress Subject Headings (LCSH):||Surfaces (Technology) -- Mathematical models, Measuring instruments -- Vibration, Surface roughness -- Measurement|
|Journal or Publication Title:||Precision Engineering - Journal of the International Societies for Precision Engineering and Nanotechnology|
|Publisher:||Elsevier Science Inc.|
|Official Date:||July 2010|
|Number of Pages:||6|
|Page Range:||pp. 586-591|
|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), Australian Research Council (ARC)|
|Grant number:||50705064 (NSFC), 08JCYBJC01400 (NSFT), DP0450944 (ARC), DP0666366 (ARC), LE0347024 (ARC), LE0775692 (ARC)|
 M.N.H. Damir, Error in measurement due to stylus kinematics, Wear, 26 (1973) 219–227.
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