Transactions of Materials and Heat Treatment

Title：Analysis on vibration characteristic of blade rolling mill roller under quasi-periodic excitation

Authors： Mao Jun Zhang Kun Meng Hui Li Shenliang

Unit： Liaoning Technical University AVIC Shenyang Liming Aero-Engine (Group) Corporation Ltd.

KeyWords： nonlinear system quasi-periodic excitation vertical vibration blade rolling mill

ClassificationCode：O322

year,vol(issue):pagenumber：2015,40(8):135-139

Abstract：

Nonlinear vertical vibration dynamic model of blade rolling mill was established based on the action of periodic external excitation under two different frequencies. The change law of amplitude-frequency response under the periodic external excitation of two different frequencies and the influence of high frequency excitation parameters on dynamic characteristics of system were studied through the method of multiple scales to solve amplitude-frequency characteristic equation of system with resonance. It is concluded that natural frequency increases with the rise of high frequency excitation coefficient, and the vibration amplitudes of the main system frequency and high frequency increases. As the frequency of high-frequency excitation increases within a certain range, the high frequency amplitude decreases correspondingly.

Funds：

辽宁省教育厅创新团队资助项目（LT2013009）；辽宁省教育厅项目（L2014124）

毛君（1960-），男，博士，教授张坤（1990-），男，硕士研究生

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