Gas film performance of double-row orifices of aerostatic guideways
CHEN Dong-ju1, FAN Jin-wei1, ZHANG Fei-hu2
1.College of Mechanical Engineering & Applied Electronics Technology,Beijing University of Technology,Beijing 100124,China;2.Dept. of Mechanical Engineering,Harbin Institute of Technology,Harbin 150001,China
Abstract:
In order to analyze the performance of aerostatic guidways,the stiffness calculation equation of the aerostatic guideway with two-row orifice has been derived by gas lubrication theory. For the complex structure of the motion guideway and unloading guideway,the frequency of the whole slides in machining direction with gas thickness has been derived. Wavelet transform as a means to process the measured signal of workpiece surface, the frequency characteristics of gas fluctuation of aerostatic guideways has been extracted out from the measured signal,and the errors of the guideway system have been identified according to the power spectral density (PSD) ,and this provide a basis for the identification of machine tool error.
Key words: aerostatic guidways gas fluctuations wavelet transform PSD error identification
DOI：10.11916/j.issn.1005-9113.2012.01.010
Clc Number:TH703
Fund:
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Gas film performance of double-row orifices of aerostatic guideways
本站小编 哈尔滨工业大学/2019-10-24
相关话题/Gas film performance double-row orifices aerostatic guideways
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