摘要
针对频率、振幅和波形均可在线调整的连铸结晶器电动式混合驱动系统,提出与其运行模式相匹配的非正弦振动波形。首先阐明新型驱动系统非正弦波形的发生机理;然后按照激波机构的运行特点,考虑系统运行过程中的平稳性和运动约束条件,构建了激波机构的速度函数,进而根据驱动系统运动学推导出以频率、振幅和偏斜率为基本参数的结晶器非正弦振动波形;最后给出非正弦波形的关键工艺参数计算公式,讨论了vc-f、h同步控制模型中控制参数与振动工艺参数的关联规律,并以某中碳钢板坯连铸生产为例,利用关联规律,得到了完全符合振动工艺原则的非正弦控制模型,从而验证了该非正弦波形的有效性和实用性。
A non- sinusoidal oscillation wave of continuous casting mold is developed for a electrical type hybrid drive system whose parameters can be adjusted online,such as frequency,amplitude and oscillation wave. Firstly,the generation of non-sinusoidal wave of the new drive system is demonstrated. According to its operation characteristics,the angular velocity of the wave generator is constructed with consideration of the stability and constraint of motion. Then the nonsinusoidal oscillation wave of the mold containing frequency,amplitude and deviation factor is deduced by the kinematic rule of the drive system. Finally,the calculation method of the key technological parameters of the wave is given,with the relating regularity between the control parameters of vc- f、h model and the technological parameters discussed. Furthermore,an example that a non-sinusoidal control model in accordance with oscillation technology principle is calculated by control parameter adjustment rule for a medium carbon steel slab,which could identify the validity and practicality of the non-sinusoidal wave.
出处
《钢铁》
CAS
CSCD
北大核心
2016年第2期44-48,共5页
Iron and Steel
基金
河北省自然科学基金钢铁联合研究基金资助项目(E2011203078)
燕山大学博士基金资助项目(B870)
关键词
连铸机
结晶器
非正弦振动
工艺参数
控制模型
continuous casting
mold
non-sinusoidal oscillation
technological parameters
control model
