Modeling and Natural Characteristic of Non-sinusoidal Oscillator of Continuous Casting Molds

China Mechanical Engineering

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Modeling and Natural Characteristic of Non-sinusoidal Oscillator of Continuous Casting Molds

ZHOU Chao1，2;ZHANG Xingzhong1;LIU Pingfei1;GUAN Jie3

1.National Engineering Research Center for Equipment and Technology of Cold Strip Rolling，Yanshan University，Qinhuangdao，Hebei，066004
2.Ocean College，Hebei Agricultural University，Qinhuangdao，Hebei，066003
3.China National Heavy Machinery Research Institute Co.，Ltd.，Xi'an， 710032

Online:2018-08-25 Published:2018-08-27
Supported by:
Heibei Provincial Natural Science United Foundation of China （No. E2016203492）
National Natural Science Foundation of China （No. 51275446）

连铸结晶器非正弦振动装置建模与固有特性分析

周超1，2;张兴中1;刘平飞1;关杰3

1.燕山大学国家冷轧板带装备及工艺工程技术研究中心，秦皇岛，066004
2.河北农业大学海洋学院，秦皇岛，066003
3.中国重型机械研究院有限公司，西安，710032

基金资助:
河北省自然科学基金-钢铁联合基金资助项目（E2016203492）；
国家自然科学基金资助项目（51275446）；
河北省留学人员科技活动项目(C2013005012)
Heibei Provincial Natural Science United Foundation of China （No. E2016203492）
National Natural Science Foundation of China （No. 51275446）

Abstract

Abstract: To realize modification ratio of non-sinusoidal oscillation adjusted on line for mold driven by mechanisms，a non-sinusoidal oscillator driven by double servomotors was proposed.Firstly，working principles of the oscillator were described.3D model of the system was established，which was analyzed by simulation software.Secondly，the torsional-translational coupling dynamics model was created，and the dynamics equations of which were deduced.The results show that mass matrix of non-sinusoidal oscillation is constant，stiffness matrix and damping matrix change with time.At last，based on instantaneous mechanism-solidified method，natural frequency of the system was analyzed ，which was influenced by rotational angles of eccentric shaft，amplitudes,inertia parameters and stiffness.

Key words: continuous casting mold, non-sinusoidal oscillation, oscillator, natural frequency

摘要： 为实现机械系统驱动的结晶器非正弦振动波形偏斜率的在线调节，设计出一种双伺服电机驱动的结晶器非正弦振动装置。阐述其工作原理，建立三维模型并进行运动学仿真；建立扭转-平移耦合动力学模型，推导其动力学方程。研究表明，非正弦振动系统的质量矩阵是常量，刚度矩阵、阻尼矩阵随时间周期性变化。最后，基于瞬时机构凝固法，分析了系统偏心轴的转角、振幅、构件惯性参数及刚度对其固有频率的影响。

关键词: 连铸结晶器, 非正弦振动, 振动装置, 固有频率

CLC Number:

TF777.1

ZHOU Chao1，2;ZHANG Xingzhong1;LIU Pingfei1;GUAN Jie3. Modeling and Natural Characteristic of Non-sinusoidal Oscillator of Continuous Casting Molds[J]. China Mechanical Engineering.

周超1，2;张兴中1;刘平飞1;关杰3. 连铸结晶器非正弦振动装置建模与固有特性分析[J]. 中国机械工程.

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Modeling and Natural Characteristic of Non-sinusoidal Oscillator of Continuous Casting Molds

连铸结晶器非正弦振动装置建模与固有特性分析

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