Chatter detection using principal component analysis in cold rolling mill

Usmani, Najmul Islam; Velisetti, Srihari; Tiwari, Prabhat; Mishra, Susanta Kumar; Kumar, Sanjeev; Patnaik, Uma Shankar

doi:10.29354/diag/81692

Cited by 4 publications

(2 citation statements)

References 6 publications

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“…Анализ спектра ограничен диапазоном частот от 0 до 1300 Гц. Автоколебания появляются на пятой клети на полосах толщиной меньше 1 мм и скоростях прокатки выше 20 м/с [23].…”

Section: Introductionunclassified

Chatter of the stands of the cold Rolling tandem mill 2000 of the Magnitogorsk Iron and Steel Works

Krasnov,

Kachurin,

Vishnyakov

et al. 2023

MEI

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One of the problems of cold rolling of thin strips is self-excited chatter vibrations, which lead to the appearance of various defects. High-frequency self-oscillations can lead to defects related to surface quality, low-frequency ones with high amplitude levels can lead to gusts of thin bands or even severe accidents of the rolling mill itself. As a rule, self–oscillations occur suddenly at high rolling speeds, more than 20 m / s and thin strips, the thickness is usually around 300-700 microns. For the normal operation of the rolling mill, it is necessary to use special systems for monitoring the vibration state and preventing the occurrence of self-oscillations. The control system for exceeding the critical vibration level generates signals from the automated control system of the mill to eliminate self-oscillations. The critical vibration level is determined by the spectral composition using the fast Fourier transform (FFT). When self-oscillations occur, lowfrequency components from 5 to 20 Hz prevail, frequencies in the range of the third octave from 100 to 200 Hz and frequencies of the fifth octave from 400 to 800 Hz. The cold rolling mill 2000 of the Magnitogorsk Iron and Steel Works combines a tandem five-cell mill and a continuous etching unit. There is no regular vibration monitoring system at the mill, warning and elimination of self-oscillations occurs in manual mode. With the use of research vibration equipment, experimental studies have been conducted on the possibility of using technological parameters to control and prevent the occurrence of self-oscillations. The moment of occurrence of self-oscillations can be controlled by the vibrations of the hydraulic tensioning device (GNU) of the mill. Processing of the vibration displacement signal of the measuring channel of the GNU FFT

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Section: Introductionunclassified

Chatter of the stands of the cold Rolling tandem mill 2000 of the Magnitogorsk Iron and Steel Works

Krasnov,

Kachurin,

Vishnyakov

et al. 2023

MEI

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“…In Haoran et al (2011), a computer simulation analysis was presented by an ANSYS finite element harmonic response analysis module and the conclusion was obtained that the tensional vibration and axial vibration will cause the phenomenon of coupling vibration under certain conditions. In Maria and Susanna (2013), a kind of hysteretic nonlinear vertical vibration dynamic model which considers hysteresis of strip's plastic deformation was established. In Skripalenko et al (2011), chatter in food processing rolling mills was the undesirable vibration observed in most of the food processing rolling mills operating at high speed and rolling thin strip.…”

Section: Introductionmentioning

confidence: 99%

Remote Monitoring System for Machinery-electric-hydraulic Coupling Vibration of Food Processing Rolling Mill Screw-down System

Liu¹,

Jin²,

Zhang³

et al. 2016

AJFST

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Machinery-electric-hydraulic coupling vibration seriously affects the control accuracy of the food processing rolling mill. In this study, a remote vibration sensor monitoring method based on network technology is put forward. By using Siemens PLC, the state monitoring device is designed to realize the parameters measurement, such as vibration, current, pressure, force and temperature, etc. Then the parameter information is transferred to the configuration software system through the ethernet interface. The research result shows that the network-based remote sensor monitoring system of machinery-electric-hydraulic coupling vibration plays a key role in ensuring the normal work for food processing rolling mill screw-down system.

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Model Based Monitoring of Dynamic Loads and Remaining Useful Life Prediction in Rolling Mills and Heavy Machinery

Krot

Prykhodko

Raznosilin

et al. 2020

Advances in Asset Management and Condition Monitoring

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Chatter detection using principal component analysis in cold rolling mill

Cited by 4 publications

References 6 publications

Chatter of the stands of the cold Rolling tandem mill 2000 of the Magnitogorsk Iron and Steel Works

Chatter of the stands of the cold Rolling tandem mill 2000 of the Magnitogorsk Iron and Steel Works

Remote Monitoring System for Machinery-electric-hydraulic Coupling Vibration of Food Processing Rolling Mill Screw-down System

Model Based Monitoring of Dynamic Loads and Remaining Useful Life Prediction in Rolling Mills and Heavy Machinery

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