Enhancing Technologies of Stabilization of Mill Vibration by Mill Stabilizing Device in Hot Rolling

Furumoto, Hideaki; Kanemori, Shinya; Hayashi, Kanji; Sako, Akifumi; T, Hiura; Tonaka, Hideki; Da-le, Sun; Qun, Fan; Wang, Fuchen

doi:10.1016/j.proeng.2014.09.134

Cited by 14 publications

(5 citation statements)

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“…In order to cope with the greater impact generated during the rolling process, a rolling mill stabilizing device composed of a hydraulic cylinder with a hole is used in actual production. Furumoto et al 19) proposed that a cavity be installed in the hydraulic cylinder of the rolling mill stabilizing device, which further improves the damping effect of the stabilizing device and weakens rolling mill vibration. Wu et al 20) found a rare frequency modulation phenomenon during fieldwork to measure the vibration of high-speed rolling mills.…”

Section: Introductionmentioning

confidence: 99%

Vertical Vibration Characteristics of Strip Rolling Mill under Compound Roll Bearing Failure

Hou

Sun

et al. 2022

ISIJ Int.

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A vertical vibration model of a 3-DOF strip rolling mill with a compound roll bearing failure on the outer raceway and inner raceway is established. Through MATLAB simulation, the vertical vibration characteristics of the strip mill work roll are compared and analyzed under the condition that the outer raceway failure of the roller bearing remains unchanged, the inner raceway failure changes and the inner and outer raceway failures change simultaneously. It provides a certain theoretical basis for further clarifying the non-linear vibration mechanism of the rolling mill caused by the compound bearing failure. At the same time, when the internal and external raceways of the roller bearing have a compound failure, the effects of different roller numbers and contact angles on the vibration displacement fluctuations of the work roll are analyzed, which has certain theoretical guidance for the optimization design of the roll bearing.

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Section: Introductionmentioning

confidence: 99%

Vertical Vibration Characteristics of Strip Rolling Mill under Compound Roll Bearing Failure

Hou

Sun

et al. 2022

ISIJ Int.

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“…Rolling mill vibration is a coupling vibration among mechanical, electrical, hydraulic, and rolling interfacial subsystem. 5 Presently, vibration is mainly suppressed by adjusting rolling mill parameters by installing vibration dampers, 6 improving the quality of the grinding roll, 7,8 changing the emulsion lubrication characteristics, 9,10 or the tuning mechanical clearance, 11 which plays an important role in vibration damping. In addition, some researchers adopted heuristic algorithms, such as neural networks and genetic algorithms, to optimize the state parameters of rolling mills.…”

Section: Introductionmentioning

confidence: 99%

Active vibration suppression for rolling mills vibration based on extended state observer and parameter identification

Wang

Yan

2019

Journal of Low Frequency Noise, Vibration and Active Control

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Rolling mills vibration is a key factor that hinders the production of thin-strip steel. Currently, vibration is mainly suppressed by adjusting rolling mill parameters which is not a common approach. Due to special working conditions, the information of work roll, such as displacement and velocity, cannot be directly measured. Therefore, based on extended state observer, new resonance ratio control method, which is a common approach, is proposed to suppress the rolling mill vibration. First, the equivalent mass of the back roll is identified. Then, the interaction force between the work roll and the back roll and the velocity of the back roll are estimated using the extended state observer. Finally, these values are introduced into the input of the servo valve to compensate. The simulation results indicate that vibrations of both the work roll and the back roll are suppressed, and this method has a great tolerance for the identification error of the back-roll equivalent mass, and extended state observer compensation possesses a more superior vibration suppression than disturbance observer compensation.

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“…The traditional research about four-high and six-high plate mill vibrations, including a single mode vibration or a coupling mode vibration, belongs to a simplified onedimensional or two-dimensional/planar vibration analytical mode. Meanwhile, for the traditional coupling mode vibration analysis, including the vertical-torsional vibrations studied by some researchers [5][6][7], vertical-horizontal vibrations studied by some researchers [8][9][10], mechanical-hydraulic coupling vibrations studied by Ma [11], mechanical-electrical coupling vibrations studied by Zhong et al [12] and mechanical-electrical-hydraulic coupling vibrations studied by Yan [13], it is all done based on some coupling conditions. In reality, the true mill vibrations take place in six degrees of freedom (DOF), i.e., there are spatial vibration behaviours for a mill according to some recent research studied by our team [14][15][16][17][18].…”

Section: Introductionmentioning

confidence: 99%

Spatial vibration characteristics of six-high cold strip rolling mills

Zheng

Shen

et al. 2017

Ironmaking & Steelmaking

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The vibration characteristic technical indexes of six-high cold strip rolling mills are not given, and thus the chatter vibrations cannot be predicted and prevented. The strip rolling mills can be divided into the non-statically determinate and statically determinate mills according to the statically determinate theory of mechanism. This statically determinate characteristic of the mill does not be distinguished in the traditional mill vibration analysis. In this paper, for these two distinct mill configurations, a complete spatial vibration characteristic analysis involving six degree of horizontal, vertical, axial, torsional, cross and swinging vibration will be presented based on the modified multi-body Riccati transfer matrix method. The results demonstrate that the vibration characteristics of the statically determinate mills are much better that that of nonstatically determinate ones, which significantly indicates the perniciousness of the offset distance and uncontrolled side clearance, and clarifies the necessity of upgrading of the traditional mills.

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Enhancing Technologies of Stabilization of Mill Vibration by Mill Stabilizing Device in Hot Rolling

Cited by 14 publications

References 0 publications

Vertical Vibration Characteristics of Strip Rolling Mill under Compound Roll Bearing Failure

Vertical Vibration Characteristics of Strip Rolling Mill under Compound Roll Bearing Failure

Active vibration suppression for rolling mills vibration based on extended state observer and parameter identification

Spatial vibration characteristics of six-high cold strip rolling mills

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