Abstract
The article proposes a mathematical model for the formation process of degradation failures of quarto roll systems according to kinetic criteria of strength and wear resistance of materials. It is a statement of the stationary boundary-value problem of the theory of parametric reliability of the roll-strip system in a quarto stand using the basic equations of the kinetic theory of damage to solids, the energy-mechanical concept of wear of tribocoupling, and the thermodynamic condition of structural destruction. Firstly, the energy density of structural defects of local volumes of materials in the zones of maximum bending stresses in the backup roll, as well as contact stresses in the interaction zones between the rolls and the strip, was selected as parameters determining the state of the roll system according to the criteria of roll strength. Secondly, the values of the current profiles of the active generators of the backup and work rolls are taken as geometric parameters of the quarto system state. Their change in the wear process of the rolls during rolling in the zone of their interaction and the worker in the deformation zone reflect the evolution of the quarto roll system according to the criterion of the profile accuracy of the rolled strips.
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Antsupov, A.V., Slobodianskii, M.G., Lyasheva, J.S. (2021). Multiparameter Model of Degradation Failures in Quarto Roll Systems. In: Radionov, A.A., Gasiyarov, V.R. (eds) Proceedings of the 6th International Conference on Industrial Engineering (ICIE 2020). ICIE 2021. Lecture Notes in Mechanical Engineering. Springer, Cham. https://doi.org/10.1007/978-3-030-54814-8_12
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DOI: https://doi.org/10.1007/978-3-030-54814-8_12
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