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Roll System and Stock’s Multi-parameter Coupling Dynamic Modeling Based on the Shape Control of Steel Strip

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Abstract

The existence of rolling deformation area in the rolling mill system is the main characteristic which distinguishes the other machinery. In order to analyze the dynamic property of roll system’s flexural deformation, it is necessary to consider the transverse periodic movement of stock in the rolling deformation area which is caused by the flexural deformation movement of roll system simultaneously. Therefore, the displacement field of roll system and flow of metal in the deformation area is described by kinematic analysis in the dynamic system. Through introducing the lateral displacement function of metal in the deformation area, the dynamic variation of per unit width rolling force can be determined at the same time. Then the coupling law caused by the co-effect of rigid movement and flexural deformation of the system structural elements is determined. Furthermore, a multi-parameter coupling dynamic model of the roll system and stock is established by the principle of virtual work. More explicitly, the coupled motion modal analysis was made for the roll system. Meanwhile, the analytical solutions for the flexural deformation movement’s mode shape functions of rolls are discussed. In addition, the dynamic characteristic of the lateral flow of metal in the rolling deformation area has been analyzed at the same time. The establishment of dynamic lateral displacement function of metal in the deformation area makes the foundation for analyzing the coupling law between roll system and rolling deformation area, and provides a theoretical basis for the realization of the dynamic shape control of steel strip.

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Authors and Affiliations

  1. National Engineering Research Center for Equipment and Technology of Cold Rolling Strip, Yanshan University, Qinhuangdao, 066004, China

    Yang ZHANG, Yan PENG & Jianliang SUN

  2. School of Mechanical Engineering, University of Science and Technology Beijing, Beijing, 100083, China

    Yan PENG & Yong ZANG

Authors
  1. Yang ZHANG
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  2. Yan PENG
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  3. Jianliang SUN
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  4. Yong ZANG
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Corresponding author

Correspondence to Yan PENG.

Additional information

Supported by National Natural Science Foundation of China (Grant No. 51375424).

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ZHANG, Y., PENG, Y., SUN, J. et al. Roll System and Stock’s Multi-parameter Coupling Dynamic Modeling Based on the Shape Control of Steel Strip. Chin. J. Mech. Eng. 30, 614–624 (2017). https://doi.org/10.1007/s10033-017-0104-6

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  • DOI: https://doi.org/10.1007/s10033-017-0104-6

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