Experimental and Numerical Investigation of the Vibration Characteristics in a Hot Plate Rolling Mill Based on Multibody Dynamics

Lim, Hun; Yang, Hee Jun

doi:10.2355/isijinternational.isijint-2019-773

Cited by 2 publications

(2 citation statements)

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“…Considering the combined effect of the single-point closed pit failure on the inner raceway and the non-closed local pit subsidence failure on the outer raceway, a 3-DOF vertical vibration model of strip mill with compound bearing failure was established, and the nonlinear vibration characteristics of the strip mill were studied, which can be concluded as follows (1) When the bearing has a compound fault, the frequency components of the roll vibration were very complex. The characteristic frequency includes the inner and outer raceway failure frequency, the fundamental frequency of the work roll rotation and the low and high harmonics corresponding to each frequency.…”

Section: Discussionmentioning

confidence: 99%

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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: Discussionmentioning

confidence: 99%

“…Rolling mill vibration [1][2][3][4] has always been a technical problem for the steel industry at home and abroad. Due to the quality deviation of rolling products and damage to rolling equipment caused by vibration, it will cause serious loss of rolling productivity.…”

Section: Introductionmentioning

confidence: 99%