| 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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| 引用本文： | 周超,张兴中,刘平飞,关杰. 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, 2018, 29(16): 1921 |
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| 作者姓名： | 周超 张兴中 刘平飞 关杰 |
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| 作者单位： | 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，0660042.河北农业大学海洋学院，秦皇岛，0660033.中国重型机械研究院有限公司，西安，710032 |
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| 基金项目： | 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） |
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| 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。
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| 关 键 词： | 连铸结晶器 非正弦振动 振动装置 固有频率 |
Modeling and Natural Characteristic of Non-sinusoidal Oscillator of Continuous Casting Molds |
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| ZHOU Chao,ZHANG Xingzhong,LIU Pingfei,GUAN Jie. Modeling and Natural Characteristic of Non-sinusoidal Oscillator of Continuous Casting Molds[J]. China Mechanical Engineering, 2018, 29(16): 1921 |
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| Authors: | ZHOU Chao ZHANG Xingzhong LIU Pingfei GUAN Jie |
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| Affiliation: | 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，0660033.China National Heavy Machinery Research Institute Co.，Ltd.，Xi'an， 710032 |
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| 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. |
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| Keywords: | continuous casting mold non-sinusoidal oscillation oscillator natural frequency |
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