基于混合摩擦模型的轧机垂扭耦合特性分析
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摘要
为了研究轧机系统的垂扭耦合振动特性,建立了基于混合摩擦模型的轧机垂扭耦合振动模型,给出了耦合振动微分方程,探讨了轧制过程中相关参数的相互影响关系,建立了轧机垂扭两系统相互耦合的关系框图,并对其结果进行仿真分析。通过改变混合摩擦系数的相关项来探讨其对轧机垂扭耦合系统的影响,得到了混合摩擦系数的一个失稳临界值。讨论了轧机主传动扭转振动系统对垂直振动系统的耦合影响,并对其原因进行了分析。对进一步研究轧机系统垂扭耦合振动问题具有一定的参考价值。
In order to study the vibration characteristics of vertical-torsion coupling system of rolling mill,a rolling mill vertical-torsion coupling vibration model based on a mixed friction model had been established,and the coupled vibration differential equation was given,the relationship between the interaction parameters of the rolling process had been explored,and a block diagram of the coupled relationship between vertical and torsional system of rolling mill was established,and the results were simulated and analyzed. By changing the related items of the mixed friction coefficients to discuss its impact on the vertical-torsion coupling system of rolling mill,it obtained an instability critical value of the mixed friction coefficients.Discussed the coupled impact of the main drive torsion system on the vertical vibration system,and its reasons were analyzed.It has a certain reference value for further studying the vibration problems of vertical-torsion coupling system of rolling mill.
In order to study the vibration characteristics of vertical-torsion coupling system of rolling mill,a rolling mill vertical-torsion coupling vibration model based on a mixed friction model had been established,and the coupled vibration differential equation was given,the relationship between the interaction parameters of the rolling process had been explored,and a block diagram of the coupled relationship between vertical and torsional system of rolling mill was established,and the results were simulated and analyzed. By changing the related items of the mixed friction coefficients to discuss its impact on the vertical-torsion coupling system of rolling mill,it obtained an instability critical value of the mixed friction coefficients.Discussed the coupled impact of the main drive torsion system on the vertical vibration system,and its reasons were analyzed.It has a certain reference value for further studying the vibration problems of vertical-torsion coupling system of rolling mill.
引文
[1]李谋渭.轧机振动研究的新进展[J].重型机械,1994(6):8-11.(Li Mou-wei.The new progress of study on rolling mill vibration[J].Heavy Machinery,1994(6):8-11).
[2]黄彬城,马维金,王俊元.高速轧机耦合振动问题研究进展及评述[J].制造业自动化,2013,35(12):55-58.(Huang Bin-cheng,Ma Wei-jin,Wang Jun-yuan.Review of coupled vibration problems investigation of high-speed rolling mil[lJ].Manufacturing Automation,2013,35(12):55-58).
[3]黄彬城,马维金,王俊元.高速轧机振动问题研究综述[J].轧钢,2013,30(4):38-42.(Huang Bin-cheng,Ma Wei-jin,Wang Jun-yuan.Review of vibration problems investigation of high-speed rolling mill[J].Steel Rolling,2013,30(4):38-42).
[4]闫小强,史灿,曹曦.CSP轧机扭振与垂振耦合研究[J].振动、测试与诊断,2008,28(4):377-381.(Yan Xiao-qiang,Shi Can,Cao Xi.Study on coupled vertical-torsion vibration of CSP rolling mil[lJ].Journal of Vibration,Measurement&Diagnosis,2008,28(4):377-381.)
[5]史荣,赵静,彭艳.基于实验研究的轧机垂扭耦合振动分析[J].实验力学,2012,27(3):319-325.(Shi Rong,Zhao Jing,Peng Yan.Mill vertical-torsion coupling dynamic vibration analysis based on experimental study[J].Journalof Experimental Mechanics,2012,27(3):319-325.)
[6]张飞.轧机振动及其耦合效应研究[D].重庆:重庆大学,2014.(Zhang Fei.Research on coupled vibration of rolling mil[lD].Chongqing:Chongqing University,2014).
[7]邹家祥,徐乐江.冷连轧机系统振动控制[M].北京:冶金工业出版社,1988.(Zou Jia-xiang,Xu Le-jiang.Vibration Control of Cold Tandem Mill System[M].Beijing:Metallurgical Industry Press,1988.)
[8]张瑞成,陈至坤,王福斌.轧机主传动系统机电振动特性分析及控制措施研究[J].机械设计与制造,2010(6):112-114.(Zhang Rui-cheng,Chen Zhi-kun,Wang Fu-bin.Analysis on electromechanical vibration characteristic and control methods of the main drive systemofrollingmil[lJ].Machinery Design&Manufacture,2010(6):112-114.)
[9]杨安,欧阳奇.轧机液压AGC系统建模及仿真[J].机床与液压,2008,36(9):243-246.(Yang An,Ouyang Qi.Modeling and simulation of hydraulic AGC system of rolling gap contro[lJ].Machine Tool&Hydraulics,2008,36(9):243-246.)
[10]杨旭,童朝南,孟建基.冷板带轧机含振动因素的轧制力模型[J].振动、测试与诊断,2010,30(4):422-428.(Yang Xu,Tong Chao-nan,Meng Jian-ji.Rolling force model containing vibrating elements of cold strip mil[lJ].Journal of Vibration,Measurement&Diagnosis,2010,30(4):422-428.)
[11]王明恒,孟宪举.基于键和图和Simulink的轧机主传动系统的建模及应用[J].制造业自动化,2012,34(2):44-46.(Wang Ming-heng,Meng Xian-ju.The modeling and application of main drive system of rolling mill basedon bond graph and Simulink[J].Manufacturing Automation,2012,34(2):44-46.)
[2]黄彬城,马维金,王俊元.高速轧机耦合振动问题研究进展及评述[J].制造业自动化,2013,35(12):55-58.(Huang Bin-cheng,Ma Wei-jin,Wang Jun-yuan.Review of coupled vibration problems investigation of high-speed rolling mil[lJ].Manufacturing Automation,2013,35(12):55-58).
[3]黄彬城,马维金,王俊元.高速轧机振动问题研究综述[J].轧钢,2013,30(4):38-42.(Huang Bin-cheng,Ma Wei-jin,Wang Jun-yuan.Review of vibration problems investigation of high-speed rolling mill[J].Steel Rolling,2013,30(4):38-42).
[4]闫小强,史灿,曹曦.CSP轧机扭振与垂振耦合研究[J].振动、测试与诊断,2008,28(4):377-381.(Yan Xiao-qiang,Shi Can,Cao Xi.Study on coupled vertical-torsion vibration of CSP rolling mil[lJ].Journal of Vibration,Measurement&Diagnosis,2008,28(4):377-381.)
[5]史荣,赵静,彭艳.基于实验研究的轧机垂扭耦合振动分析[J].实验力学,2012,27(3):319-325.(Shi Rong,Zhao Jing,Peng Yan.Mill vertical-torsion coupling dynamic vibration analysis based on experimental study[J].Journalof Experimental Mechanics,2012,27(3):319-325.)
[6]张飞.轧机振动及其耦合效应研究[D].重庆:重庆大学,2014.(Zhang Fei.Research on coupled vibration of rolling mil[lD].Chongqing:Chongqing University,2014).
[7]邹家祥,徐乐江.冷连轧机系统振动控制[M].北京:冶金工业出版社,1988.(Zou Jia-xiang,Xu Le-jiang.Vibration Control of Cold Tandem Mill System[M].Beijing:Metallurgical Industry Press,1988.)
[8]张瑞成,陈至坤,王福斌.轧机主传动系统机电振动特性分析及控制措施研究[J].机械设计与制造,2010(6):112-114.(Zhang Rui-cheng,Chen Zhi-kun,Wang Fu-bin.Analysis on electromechanical vibration characteristic and control methods of the main drive systemofrollingmil[lJ].Machinery Design&Manufacture,2010(6):112-114.)
[9]杨安,欧阳奇.轧机液压AGC系统建模及仿真[J].机床与液压,2008,36(9):243-246.(Yang An,Ouyang Qi.Modeling and simulation of hydraulic AGC system of rolling gap contro[lJ].Machine Tool&Hydraulics,2008,36(9):243-246.)
[10]杨旭,童朝南,孟建基.冷板带轧机含振动因素的轧制力模型[J].振动、测试与诊断,2010,30(4):422-428.(Yang Xu,Tong Chao-nan,Meng Jian-ji.Rolling force model containing vibrating elements of cold strip mil[lJ].Journal of Vibration,Measurement&Diagnosis,2010,30(4):422-428.)
[11]王明恒,孟宪举.基于键和图和Simulink的轧机主传动系统的建模及应用[J].制造业自动化,2012,34(2):44-46.(Wang Ming-heng,Meng Xian-ju.The modeling and application of main drive system of rolling mill basedon bond graph and Simulink[J].Manufacturing Automation,2012,34(2):44-46.)