MODELING AND IMPROVING THE DYNAMIC CHARACTERISTICS OF SPINDLE UNITS BASED ON HYDROSTATIC BEARINGS

Michael Bundur, Prokopenko Vyacheslav A, Chernov Ivan A.

2009 , VOLUME 09, NUMBER 6 ( NOVEMBER-DECEMBER )

ISSN 2226-1494 (print), ISSN 2500-0373 (online)

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Nikiforov
Vladimir O.
D.Sc., Prof.

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MODELING AND IMPROVING THE DYNAMIC CHARACTERISTICS OF SPINDLE UNITS BASED ON HYDROSTATIC BEARINGS

M. Bundur, V. A. Prokopenko, I. A. Chernov

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Abstract

The subject of investigation is dynamic performance of radial hydrostatic bearings (HSB) of main spindle of modern high-production metal-cutting equipment. The possibilities for vibrostability improvement are considered by the radial skew of spindle axis in HSB. The developed method description of the optimal parameters of correcting RC-circuits definition is given. The transients and response functions are computed and analyzed for different operating modes of HSB.

Keywords: automated control system, hydrostatic bearing unit, spindle bearing, vibrostability, dynamic behavior, correcting RC-circuit

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