Using stochastic characteristics of vibroacoustic oscillations in the analysis of the dynamic quality of machine tools

Background. Application of stability margin of dynamic system, integral estimates of autocorrelation functions and spectra of vibro-acoustic oscillations in machine tools is relevant for evaluation of their dynamic quality and purpose of cutting mode, which is theoretically justified by solution o...

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Main Authors: A.A. Ignat'ev, V.A. Dobryakov, S.A. Ignat'ev, V.A. Karakozova
Format: Article
Language:English
Published: Penza State University Publishing House 2022-12-01
Series:Известия высших учебных заведений. Поволжский регион:Технические науки
Subjects:
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author A.A. Ignat'ev
V.A. Dobryakov
S.A. Ignat'ev
V.A. Karakozova
author_facet A.A. Ignat'ev
V.A. Dobryakov
S.A. Ignat'ev
V.A. Karakozova
author_sort A.A. Ignat'ev
collection DOAJ
description Background. Application of stability margin of dynamic system, integral estimates of autocorrelation functions and spectra of vibro-acoustic oscillations in machine tools is relevant for evaluation of their dynamic quality and purpose of cutting mode, which is theoretically justified by solution of stochastic equation of oscillations in “cutter-detail” system. Materials and methods. An experimental-analytical method is used to substantiate the use of functionals from autocorrelation functions and spectra of vibration-acoustic oscillations in machines to select a rational cutting mode and determine the initial phase of critical tool wear. Results. Results of experimental studies on turning and grinding machines on evaluation of their dynamic quality at various modes of machining and wear of cutter are presented. Conclusions. The results of studies of the stochastic characteristics of oscillations of a dynamic system showed the feasibility of assessing the dynamic quality of automated machine tools. This allows to compare by parameters, to choose a technological mode for processing high-precision parts with a given quality, and to identify the initial phase of catastrophic cutter wear for timely replacement and better use of the resource.
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spelling doaj.art-57d7071a4b2d4e918f23678955660bc02022-12-28T05:20:55ZengPenza State University Publishing HouseИзвестия высших учебных заведений. Поволжский регион:Технические науки2072-30592022-12-01310.21685/2072-3059-2022-3-10Using stochastic characteristics of vibroacoustic oscillations in the analysis of the dynamic quality of machine toolsA.A. Ignat'ev0V.A. Dobryakov1S.A. Ignat'ev2V.A. Karakozova3Yuri Gagarin State Technical University of SaratovYuri Gagarin State Technical University of SaratovYuri Gagarin State Technical University of SaratovYuri Gagarin State Technical University of SaratovBackground. Application of stability margin of dynamic system, integral estimates of autocorrelation functions and spectra of vibro-acoustic oscillations in machine tools is relevant for evaluation of their dynamic quality and purpose of cutting mode, which is theoretically justified by solution of stochastic equation of oscillations in “cutter-detail” system. Materials and methods. An experimental-analytical method is used to substantiate the use of functionals from autocorrelation functions and spectra of vibration-acoustic oscillations in machines to select a rational cutting mode and determine the initial phase of critical tool wear. Results. Results of experimental studies on turning and grinding machines on evaluation of their dynamic quality at various modes of machining and wear of cutter are presented. Conclusions. The results of studies of the stochastic characteristics of oscillations of a dynamic system showed the feasibility of assessing the dynamic quality of automated machine tools. This allows to compare by parameters, to choose a technological mode for processing high-precision parts with a given quality, and to identify the initial phase of catastrophic cutter wear for timely replacement and better use of the resource.machinesdynamic qualityvibration acoustic oscillationsautocorrelation functionspectral densitystability marginintegral estimatesprocessing quality
spellingShingle A.A. Ignat'ev
V.A. Dobryakov
S.A. Ignat'ev
V.A. Karakozova
Using stochastic characteristics of vibroacoustic oscillations in the analysis of the dynamic quality of machine tools
Известия высших учебных заведений. Поволжский регион:Технические науки
machines
dynamic quality
vibration acoustic oscillations
autocorrelation function
spectral density
stability margin
integral estimates
processing quality
title Using stochastic characteristics of vibroacoustic oscillations in the analysis of the dynamic quality of machine tools
title_full Using stochastic characteristics of vibroacoustic oscillations in the analysis of the dynamic quality of machine tools
title_fullStr Using stochastic characteristics of vibroacoustic oscillations in the analysis of the dynamic quality of machine tools
title_full_unstemmed Using stochastic characteristics of vibroacoustic oscillations in the analysis of the dynamic quality of machine tools
title_short Using stochastic characteristics of vibroacoustic oscillations in the analysis of the dynamic quality of machine tools
title_sort using stochastic characteristics of vibroacoustic oscillations in the analysis of the dynamic quality of machine tools
topic machines
dynamic quality
vibration acoustic oscillations
autocorrelation function
spectral density
stability margin
integral estimates
processing quality
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