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Supervised by Ministry of Industry and Information Technology of The People's Republic of China Sponsored by Harbin Institute of Technology Editor-in-chief Yu Zhou ISSNISSN 1005-9113 CNCN 23-1378/T

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Related citation:CHEN Dong-ju,FAN Jin-wei,ZHANG Fei-hu.Gas film performance of double-row orifices of aerostatic guideways[J].Journal of Harbin Institute Of Technology(New Series),2012,19(1):50-54.DOI:10.11916/j.issn.1005-9113.2012.01.010.
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Gas film performance of double-row orifices of aerostatic guideways
Author NameAffiliation
CHEN Dong-ju College of Mechanical Engineering & Applied Electronics Technology,Beijing University of Technology,Beijing 100124,China 
FAN Jin-wei College of Mechanical Engineering & Applied Electronics Technology,Beijing University of Technology,Beijing 100124,China 
ZHANG Fei-hu 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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