Transactions of Materials and Heat Treatment

Title：Research and test analysis on vertical vibration characteristics of four-roller rolling mill

Authors： Mao Jun Ma Yuchun Xie Miao

Unit： Liaoning Technical University National and Local Combined Mining Technology and Equipment Engineering Research Center

KeyWords： four-roller rolling mill vertical vibration natural frequency test platform power spectrum

ClassificationCode：TH113.1

year,vol(issue):pagenumber：2018,43(4):105-111

Abstract：

In order to study the vertical vibration characteristics of four-roller rolling mill system, regarding its complicated vibration process, the asymmetric six-degree-of-freedom vertical vibration model of four-roller rolling mill was established, and the dynamics equation of vertical vibration system was established by the Newton′s second law of mechanical vibration theory. Then, the inherent characteristics of six-degree-of-freedom vertical vibration model for four-roller roling mill were calculated by software Matlab, and the natural frequency of each order for the system and the corresponding main vibration mode were analyzed. The results show that the fifth-order natural frequency is the main frequency resulting in the strong self-excited vibration of four-roller rolling mill. The verification of vertical vibration test platform on the scene shows that the above system has the advantage of high accuracy. The above research results provide a theoretical basis for the study of modern dynamic design, dynamic analysis and vibration suppression of four-roller rolling mill.

Funds：

国家自然科学基金资助项目(51774162)；国家高技术研究发展计划(863计划)资助项目(2013AA06A412)；辽宁省教育厅创新团队资助项目(LT2013009)；辽宁省教育厅重点实验室项目（LJZS006）

毛君(1960-)，男，博士，教授；E-mail：jhl0607@yeah.net；通讯作者：马玉春(1993-)，男，硕士研究生；E-mail：glove0908@126.com

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