Transactions of Materials and Heat Treatment

Title：Nonlinear vibration characteristics on blade rolling mill roll system considering lubrication rough interface

Authors： Zhang Yu1 2 Zhang Yuezhi1 Zhao Fei1

Unit： 1.School of Mechanical Engineering Anyang Institute of Technology 2.Anyang Key Laboratory of Advanced Aeronautical Materials and Processing Technology Anyang Institute of Technology

KeyWords： morphologies of rough interface non-linear vibration vertical vibration rolling mill dynamic characteristics

ClassificationCode：O322

year,vol(issue):pagenumber：2023,48(8):185-193

Abstract：

For the problem that the change of interface behavior caused by rough morphology affected the dynamic characteristics of blade rolling mill roll system, a vertical vibration model of blade rolling mill roll system considering the influences of support bearing and surface topography of wedge plate was established, and the contact loads between wedge plate with different rough morphologies and roll and the non-linear contact stiffness of support bearing were calculated. The dynamics equation of the vertical vibration for blade rolling mill roll system was solved by numerical integration method, and the influences of interface rough morphology on the dynamic response characteristics of rolling mill roll system were analyzed. The research results show that the vibration displacement amplitude of blade rolling mill roll system gradually decreases with the increasing of fractal dimension, the vibration frequency amplitude also decreases, and the system appears sub-harmonic vibration, showing the phenomenon of multi-frequency vibration. The research results provide a theoretical basis for realizing the vertical vibration control of rolling mill system.

Funds：

河南省高等学校重点科研项目（22A460007）；2022年河南省重点研发与推广专项（222102220020）；2022年度安阳市科技特派员

作者简介：张瑜（1987-），男，博士，讲师,E-mail：z13464238735@sina.com

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