NONLINEAR VIBRATION RESEARCH OF STRIP STEEL WITH CONSIDERATION OF TORSIONAL VIBRATION OF MAIN DRIVE SYSTEM OF ROLLING MILL

Strip steel vibrations is inevitable in the rolling process of tandem mill, and the coupled model between elastoplastic body of strip steel and main drive system directly affects the overall dynamic performance of rolling mill. According to the movement mechanism of strip steel and main drive system...

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Main Authors: GAO ChongYi, DU GuoJun, LI Rui, LIU XiaoMan
Format: Article
Language:zho
Published: Editorial Office of Journal of Mechanical Strength 2019-01-01
Series:Jixie qiangdu
Subjects:
Online Access:http://www.jxqd.net.cn/thesisDetails#10.16579/j.issn.1001.9669.2019.02.002
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author GAO ChongYi
DU GuoJun
LI Rui
LIU XiaoMan
author_facet GAO ChongYi
DU GuoJun
LI Rui
LIU XiaoMan
author_sort GAO ChongYi
collection DOAJ
description Strip steel vibrations is inevitable in the rolling process of tandem mill, and the coupled model between elastoplastic body of strip steel and main drive system directly affects the overall dynamic performance of rolling mill. According to the movement mechanism of strip steel and main drive system, the main drive system was simplified to a two-degree-of-freedom discrete model and the strip steel was simplified to an axially moving Euler beam, the coupled vibration mechanical model of transverse and longitudinal vibrations of strip steel and torsional vibration of main drive system was established. Then, the nonlinear vibration differential equations of the coupled model were derived with Hamilton’s principle. The modified iteration method and the Kantorovich averaging method were used to solve the differential equations. Finally, by using the Matlab simulation, the influence of torsional vibration fundamental frequency of main drive system on strip steel vibration characteristics was discussed. The results can enrich the theoretical achievements on vibration of rolling mill, and it is valuable for transforming theoretical results into engineering applications.
format Article
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institution Kabale University
issn 1001-9669
language zho
publishDate 2019-01-01
publisher Editorial Office of Journal of Mechanical Strength
record_format Article
series Jixie qiangdu
spelling doaj-art-86a1094dbe054133940a9cbd712358e42025-01-15T02:30:24ZzhoEditorial Office of Journal of Mechanical StrengthJixie qiangdu1001-96692019-01-014126026630604504NONLINEAR VIBRATION RESEARCH OF STRIP STEEL WITH CONSIDERATION OF TORSIONAL VIBRATION OF MAIN DRIVE SYSTEM OF ROLLING MILLGAO ChongYiDU GuoJunLI RuiLIU XiaoManStrip steel vibrations is inevitable in the rolling process of tandem mill, and the coupled model between elastoplastic body of strip steel and main drive system directly affects the overall dynamic performance of rolling mill. According to the movement mechanism of strip steel and main drive system, the main drive system was simplified to a two-degree-of-freedom discrete model and the strip steel was simplified to an axially moving Euler beam, the coupled vibration mechanical model of transverse and longitudinal vibrations of strip steel and torsional vibration of main drive system was established. Then, the nonlinear vibration differential equations of the coupled model were derived with Hamilton’s principle. The modified iteration method and the Kantorovich averaging method were used to solve the differential equations. Finally, by using the Matlab simulation, the influence of torsional vibration fundamental frequency of main drive system on strip steel vibration characteristics was discussed. The results can enrich the theoretical achievements on vibration of rolling mill, and it is valuable for transforming theoretical results into engineering applications.http://www.jxqd.net.cn/thesisDetails#10.16579/j.issn.1001.9669.2019.02.002Strip steel vibrationsTorsional vibration of main drive systemNonlinear coupled vibrationFundamental frequencyRotational inertia
spellingShingle GAO ChongYi
DU GuoJun
LI Rui
LIU XiaoMan
NONLINEAR VIBRATION RESEARCH OF STRIP STEEL WITH CONSIDERATION OF TORSIONAL VIBRATION OF MAIN DRIVE SYSTEM OF ROLLING MILL
Jixie qiangdu
Strip steel vibrations
Torsional vibration of main drive system
Nonlinear coupled vibration
Fundamental frequency
Rotational inertia
title NONLINEAR VIBRATION RESEARCH OF STRIP STEEL WITH CONSIDERATION OF TORSIONAL VIBRATION OF MAIN DRIVE SYSTEM OF ROLLING MILL
title_full NONLINEAR VIBRATION RESEARCH OF STRIP STEEL WITH CONSIDERATION OF TORSIONAL VIBRATION OF MAIN DRIVE SYSTEM OF ROLLING MILL
title_fullStr NONLINEAR VIBRATION RESEARCH OF STRIP STEEL WITH CONSIDERATION OF TORSIONAL VIBRATION OF MAIN DRIVE SYSTEM OF ROLLING MILL
title_full_unstemmed NONLINEAR VIBRATION RESEARCH OF STRIP STEEL WITH CONSIDERATION OF TORSIONAL VIBRATION OF MAIN DRIVE SYSTEM OF ROLLING MILL
title_short NONLINEAR VIBRATION RESEARCH OF STRIP STEEL WITH CONSIDERATION OF TORSIONAL VIBRATION OF MAIN DRIVE SYSTEM OF ROLLING MILL
title_sort nonlinear vibration research of strip steel with consideration of torsional vibration of main drive system of rolling mill
topic Strip steel vibrations
Torsional vibration of main drive system
Nonlinear coupled vibration
Fundamental frequency
Rotational inertia
url http://www.jxqd.net.cn/thesisDetails#10.16579/j.issn.1001.9669.2019.02.002
work_keys_str_mv AT gaochongyi nonlinearvibrationresearchofstripsteelwithconsiderationoftorsionalvibrationofmaindrivesystemofrollingmill
AT duguojun nonlinearvibrationresearchofstripsteelwithconsiderationoftorsionalvibrationofmaindrivesystemofrollingmill
AT lirui nonlinearvibrationresearchofstripsteelwithconsiderationoftorsionalvibrationofmaindrivesystemofrollingmill
AT liuxiaoman nonlinearvibrationresearchofstripsteelwithconsiderationoftorsionalvibrationofmaindrivesystemofrollingmill