宝钢厚板冷矫直机主传动系统扭振建模及强度分析
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摘要
矫直在冷轧、热轧、厚板等轧制过程中已成为一道必不可少的工序,矫直机是实现钢板最佳平整度的关键设备之一。在实际矫直生产过程中,保证了钢板的质量。宝钢厚板厂5m宽厚板9辊冷矫直机,是2003年从德国SMS公司引进的最现代化装备之一,于2005年开始调试、试生产。在设备调试、试生产阶段也出现了一些问题,特别是矫直机主传动万向接轴过载损坏,这一直是急需解决的问题。
首先,通过物理模型简化,将系统简化为无变形的刚性转子和无惯量的弹性元件,建立了主传动系统扭转振动的力学模型,通过求解动力学方程的特征值问题及转动惯量,获得了系统的固有频率和主振型。研究发现轧机主传动系统扭振固有频率和主振型分布合理,基本满足最佳动力设计准则。
其次,基于所建立的扭振模型,采用Matlab软件,研究了系统的动态响应,得到了各轴段的扭矩放大系数(TAF)。
最后,利用Ansys软件,对花键和联轴器进行了三维有限元分析。在额定扭矩作用下,找出了最大应力位置,进行了强度校核,为矫直工艺参数的设定、高强度板材矫直能力的确定和设备的合理使用及维护等提供理论依据,做好充分的技术储备。
Straightening in the cold, hot-rolled, plate rolling process, etc. has become a necessary process, straightening machine is to achieve optimum flatness of steel plates one of the key equipment. Production process in the actual straightening, ensuring the quality of steel. Baosteel Heavy Plate Mill 9 5m heavy plate cold roll straightening machine, SMS from Germany in 2003 the company introduced one of the most modern equipment in 2005 to start debugging, trial production. In equipment commissioning, pre-production stage there have been some problems, especially straightening machine main drive shaft universal joint overload damage, the problem is the same urgent problem. First, the physical model is simplified as no deformation of the rigid rotor and the inertia of the elastic element without the establishment of the main drive system torsional vibration of the mechanical model, by solving the dynamic equation eigenvalue problem, access to the system's natural frequency and vibration mode and its moment of inertia. Found that torsional vibration of rolling mill main drive and the main vibration mode natural frequency distribution is reasonable, the basic design criteria to meet the optimum power. Secondly, based on the established model of torsional vibration, the use of Matlab software to study the dynamic response of the system to obtain the torque of each shaft segment amplification factor (TAF).
Finally, the use of Ansys software, spline and coupling the three dimensional finite element method. At rated torque, find the maximum stress location to check the strength, after the straightening process parameters for the setting of high-strength sheet metal straightening ability to identify and rational use and maintenance of equipment provide a theoretical basis and make full technical reserves.
首先,通过物理模型简化,将系统简化为无变形的刚性转子和无惯量的弹性元件,建立了主传动系统扭转振动的力学模型,通过求解动力学方程的特征值问题及转动惯量,获得了系统的固有频率和主振型。研究发现轧机主传动系统扭振固有频率和主振型分布合理,基本满足最佳动力设计准则。
其次,基于所建立的扭振模型,采用Matlab软件,研究了系统的动态响应,得到了各轴段的扭矩放大系数(TAF)。
最后,利用Ansys软件,对花键和联轴器进行了三维有限元分析。在额定扭矩作用下,找出了最大应力位置,进行了强度校核,为矫直工艺参数的设定、高强度板材矫直能力的确定和设备的合理使用及维护等提供理论依据,做好充分的技术储备。
Straightening in the cold, hot-rolled, plate rolling process, etc. has become a necessary process, straightening machine is to achieve optimum flatness of steel plates one of the key equipment. Production process in the actual straightening, ensuring the quality of steel. Baosteel Heavy Plate Mill 9 5m heavy plate cold roll straightening machine, SMS from Germany in 2003 the company introduced one of the most modern equipment in 2005 to start debugging, trial production. In equipment commissioning, pre-production stage there have been some problems, especially straightening machine main drive shaft universal joint overload damage, the problem is the same urgent problem. First, the physical model is simplified as no deformation of the rigid rotor and the inertia of the elastic element without the establishment of the main drive system torsional vibration of the mechanical model, by solving the dynamic equation eigenvalue problem, access to the system's natural frequency and vibration mode and its moment of inertia. Found that torsional vibration of rolling mill main drive and the main vibration mode natural frequency distribution is reasonable, the basic design criteria to meet the optimum power. Secondly, based on the established model of torsional vibration, the use of Matlab software to study the dynamic response of the system to obtain the torque of each shaft segment amplification factor (TAF).
Finally, the use of Ansys software, spline and coupling the three dimensional finite element method. At rated torque, find the maximum stress location to check the strength, after the straightening process parameters for the setting of high-strength sheet metal straightening ability to identify and rational use and maintenance of equipment provide a theoretical basis and make full technical reserves.
引文
1袁国,黄庆学,董辉,孟晓伟.中厚板矫直技术发展的现状与展望.太原重型机械学院学报, 2002,9(23):40-43
2薛军安,刘相华,胡贤磊,宋志成.厚板矫直技术发展现状.重型机械, 2008,(2):1-4
3陈瑛.中厚板矫直技术的发展.宽厚板, 2002,8(6):10-14
4杨固川.中厚板变辊距矫直机的结构与国内外使用概况.冶金设备, 2006,2(6):32-34
5王效岗,黄庆学.新式中厚板矫直机技术特点.山西冶金, 2006,6(2):27-29
6戴德文.宝钢5m厚板矫直机换辊设备的改进.轧钢, 2007,9(24):225-227
7陈建就,许超.现代宽厚板矫直机.宝钢技术, 2006,7(4):10-14
8于世果,李宏图.国外厚板轧机及轧制技术的发展.轧钢, 1999,7(5):173-176
9栗林.辊式矫直机的发展趋势及其结构特点.现代制造技术装备, 2006,5(3):39-41
10任晖,于彩芹,曲非.矫直机电气控制发展趋势.一重技术, 2002,4(1):13-15
11吴立章.现代宽厚板厂的工艺和装备.宝钢技术, 1999,5(1):25-26
12 Hardt D E, Robert M A and Stelson K A. Closed_Loop Control of a Roll Bending Process. Dynamic Systems Meas and Control, 1982,3(3):104-108
13 Cook G, Hansen N E, and Trotman E. General Scheme for Automatic Control of Bending of Beaming. Dynamic Systems Meas and Control, 1982,4(104):173-179
14申延智,杜国军,刘宏民. 1580热带钢连轧机主传动系统扭振研究.振动工程学报, 2004,4(1):222-224
15 Hale MB and Hart D E.Modelling. Control of a Roll Bending Process. IEEE Control Systems Magazine, 1987,7(3):136-140
16 P.F.Robinson, Behaviral Characteristics of Damaged Steel Repaired by Heat Straightening, Diss Abstrint, Mar, 1992,5(3):55-60
17孙决定.国外厚板轧机装备与轧制技术的发展现状.武钢技术, 2005,7(1):17-21
18 S. H. Jeong, S. H. Lee, GH. Kim, H. J. Seo and T. H. Kim. Computer Simulation of U-channel for under-rail roll forming using rigid-Plastic Finite Dement Methods. Journal of Materials Processing Technology, 2008,6(201):118-122
19 C. Betegon Biempica, J. J. del Coz Diaz, P. J. Garcia Nieto, I. Penuelas Sanchez. Nonlinear Analysis of Residual Stresses in a rail manufacturing Process by FEM. Applied Mathematical Modelling, 2007
20 S. L. Srimani, A. C. Pankaj, J. Basu. Analysis of end straightness of rail during Manufacturing. International Journal of Mechanical Sciences, 2005,7(47):1874-1884
21 Mehmet Firat, Bilgin Kafianoglu, Orhan Eser. Sheet Metal forming Analyses with all Emphasis on the Springback Deformation. Journal of Materials Processing Technology. 2008,6(196):135-148
22 Hoon Huh, Jin Hyuck Heo, Hyoung Wook Lee. Optimization of a roller levelling Process for A17001 T9 Pipes with Finite Dement Analysis and Taguchi Method. International Journal of Machine Tools&Manufa, 2003,2(43):345-350
23申延智,杜国君,高亚南,熊杰,刘宏民.厚板轧机万向节疲劳破坏分析.轧钢. 2010,5(2):32-34
24武汉钢铁设计院.板带车间机械设备设计(下册).北京:冶金工业出版社, 1984
25刘颖.中板矫直机变辊距技术的研究.冶金设备, 2001,6(5):13-15
26徐燕.新开发的十一辊中厚板矫直机.一重技术, 2006,4(2):23-25
27孙决定.国外厚板轧机装备与轧制技术的发展现状.武钢技术, 2005,6(1):17-21
28刘颖.中板矫直机变辊距技术的研究.冶金设备, 2001,5(10):9-12
29王建强,袁建光.宝钢宽厚板全液压冷矫直机的选取.宝钢技术, 2003,5(2):1-4
30 Girgensohn A, Buchner A R. Twin Roll Strip Casting of low Ear. Ironmaking& Stelmaking, 2000,27(4):317-323
31 OpaIka w A. Direct Strip Casting Development. Ironmak-ing& Stelmaking, 1999 (2):39-40
32 Strezove L, Herbertson J. Experimental Studies of inter'facialheat Transfer and Initial Solidfication Perinent to Strip Casting. ISIJ International, 1998,38(9):959-966
33 Blejde W, Mahapate R, Fukase H. Development of low Carbonthin Strip Production Capability at Project M. Iron&Stel-maker, 2000.27(4):29-32
34马华. 1580PC轧机f2机座主传动系统扭振研究和动态强度校核[燕山大学工学硕士学位论文]. 2006
35 Hayakawa, Kunio. Finite Element Analysis on roller-straightening Process of Equal Leg Angles. Tetsu-To-Hagane/Journal of the Iron and Steel Institute of Japan, 2009,95(11):773-779
36唐锡宽,金得闻.机械动力学.北京:高等教育出版社, 1986
37崔甫.矫直理论与参数计算.北京:机械工业出版社, 1987
38黄华清.轧钢机械.北京:冶金工业出版社, 1980,12(3):363-404
39 Josef. Aspects and Examples of Hot-Strip-mill Modernization MPT(Metallurgical Plant and Technology), 2005(2):26-29
40 Vladimir Tretjakov, Vadim Baryshev. Automatic surface Inspection at the NLMK hot Strip Mill. MPT(Metallurgical Plant and Technology), 2005(5):31-33
41 Ralf Sternitzke. Installation of a new downcoiler at Hoesch Hohenlimburg. MPT(Metallurgical Plant and Technology), 2005(5):42-45
42 Yoshida F, Urabe M. Comouter-Aided Process Design for Tension leveling of clad sheet Metal. Key Engineering Materials, 2000,5(5):177-180
43 Kano H, et a1. Elasto-plastic finite element analysis of strip curvature and internal stress in a roller leveler. MPT(Metallurgical Plant and Technology), 2006(4):313-317
44 Morris J W, Hardy S J, Lees A W, Thomas J T. Formation of residual stressesowingto tension levelling of cold rolled strip. Ironmaking and Steelmaking, 2001,28(1):44-52
45 S. H. Jeong, S. H. Lee, GH. Kim, H. J. Seo, T. H. Kim. Computer simulation of U-channel for under-rail roll forming using rigid-Plastic Finite Dement Methods. Journal of Materials Processing Technology, 2008,7(201):118-122
46 S. L. Srimani, A. C. Pankaj, J. Basu. Analysis of end straightness of rail during manufacturing. International Journal of Mechanical Sciences, 2005,3(47):1847-1848
47 Mehmet Firat, Bilgin Kafianoglu, Orhan Eser. Sheet metal forming analyses with all emphasis on the springback deformation. journal of materials processing technology, 2008,4(196):135-148
48 Hoon Huh, Jin Hyuck Heo, Hyoung Wook Lee. Optimization of a roller levelling process for A17001 T9 pipes with finite dement analysis and Taguchi method. International Journal of Machine Tools&Manufa. 2003,6(43):345-350
49周存龙,徐静,王国栋,刘相华.中厚板在矫直后的残余应力分布分析.重型机械, 2005,5(2):21-25
50周存龙,王国栋,刘相华,秦建平.压弯量对轧件矫直变形影响的有限元分析.塑性工程学报, 2006,6(1):78-81
51周振宇,王立萍,曾庆辉,徐泽宁.斜辊矫直机主传动联轴器的有限元分析.机械设计与制造, 2010,5(5):42-43
2薛军安,刘相华,胡贤磊,宋志成.厚板矫直技术发展现状.重型机械, 2008,(2):1-4
3陈瑛.中厚板矫直技术的发展.宽厚板, 2002,8(6):10-14
4杨固川.中厚板变辊距矫直机的结构与国内外使用概况.冶金设备, 2006,2(6):32-34
5王效岗,黄庆学.新式中厚板矫直机技术特点.山西冶金, 2006,6(2):27-29
6戴德文.宝钢5m厚板矫直机换辊设备的改进.轧钢, 2007,9(24):225-227
7陈建就,许超.现代宽厚板矫直机.宝钢技术, 2006,7(4):10-14
8于世果,李宏图.国外厚板轧机及轧制技术的发展.轧钢, 1999,7(5):173-176
9栗林.辊式矫直机的发展趋势及其结构特点.现代制造技术装备, 2006,5(3):39-41
10任晖,于彩芹,曲非.矫直机电气控制发展趋势.一重技术, 2002,4(1):13-15
11吴立章.现代宽厚板厂的工艺和装备.宝钢技术, 1999,5(1):25-26
12 Hardt D E, Robert M A and Stelson K A. Closed_Loop Control of a Roll Bending Process. Dynamic Systems Meas and Control, 1982,3(3):104-108
13 Cook G, Hansen N E, and Trotman E. General Scheme for Automatic Control of Bending of Beaming. Dynamic Systems Meas and Control, 1982,4(104):173-179
14申延智,杜国军,刘宏民. 1580热带钢连轧机主传动系统扭振研究.振动工程学报, 2004,4(1):222-224
15 Hale MB and Hart D E.Modelling. Control of a Roll Bending Process. IEEE Control Systems Magazine, 1987,7(3):136-140
16 P.F.Robinson, Behaviral Characteristics of Damaged Steel Repaired by Heat Straightening, Diss Abstrint, Mar, 1992,5(3):55-60
17孙决定.国外厚板轧机装备与轧制技术的发展现状.武钢技术, 2005,7(1):17-21
18 S. H. Jeong, S. H. Lee, GH. Kim, H. J. Seo and T. H. Kim. Computer Simulation of U-channel for under-rail roll forming using rigid-Plastic Finite Dement Methods. Journal of Materials Processing Technology, 2008,6(201):118-122
19 C. Betegon Biempica, J. J. del Coz Diaz, P. J. Garcia Nieto, I. Penuelas Sanchez. Nonlinear Analysis of Residual Stresses in a rail manufacturing Process by FEM. Applied Mathematical Modelling, 2007
20 S. L. Srimani, A. C. Pankaj, J. Basu. Analysis of end straightness of rail during Manufacturing. International Journal of Mechanical Sciences, 2005,7(47):1874-1884
21 Mehmet Firat, Bilgin Kafianoglu, Orhan Eser. Sheet Metal forming Analyses with all Emphasis on the Springback Deformation. Journal of Materials Processing Technology. 2008,6(196):135-148
22 Hoon Huh, Jin Hyuck Heo, Hyoung Wook Lee. Optimization of a roller levelling Process for A17001 T9 Pipes with Finite Dement Analysis and Taguchi Method. International Journal of Machine Tools&Manufa, 2003,2(43):345-350
23申延智,杜国君,高亚南,熊杰,刘宏民.厚板轧机万向节疲劳破坏分析.轧钢. 2010,5(2):32-34
24武汉钢铁设计院.板带车间机械设备设计(下册).北京:冶金工业出版社, 1984
25刘颖.中板矫直机变辊距技术的研究.冶金设备, 2001,6(5):13-15
26徐燕.新开发的十一辊中厚板矫直机.一重技术, 2006,4(2):23-25
27孙决定.国外厚板轧机装备与轧制技术的发展现状.武钢技术, 2005,6(1):17-21
28刘颖.中板矫直机变辊距技术的研究.冶金设备, 2001,5(10):9-12
29王建强,袁建光.宝钢宽厚板全液压冷矫直机的选取.宝钢技术, 2003,5(2):1-4
30 Girgensohn A, Buchner A R. Twin Roll Strip Casting of low Ear. Ironmaking& Stelmaking, 2000,27(4):317-323
31 OpaIka w A. Direct Strip Casting Development. Ironmak-ing& Stelmaking, 1999 (2):39-40
32 Strezove L, Herbertson J. Experimental Studies of inter'facialheat Transfer and Initial Solidfication Perinent to Strip Casting. ISIJ International, 1998,38(9):959-966
33 Blejde W, Mahapate R, Fukase H. Development of low Carbonthin Strip Production Capability at Project M. Iron&Stel-maker, 2000.27(4):29-32
34马华. 1580PC轧机f2机座主传动系统扭振研究和动态强度校核[燕山大学工学硕士学位论文]. 2006
35 Hayakawa, Kunio. Finite Element Analysis on roller-straightening Process of Equal Leg Angles. Tetsu-To-Hagane/Journal of the Iron and Steel Institute of Japan, 2009,95(11):773-779
36唐锡宽,金得闻.机械动力学.北京:高等教育出版社, 1986
37崔甫.矫直理论与参数计算.北京:机械工业出版社, 1987
38黄华清.轧钢机械.北京:冶金工业出版社, 1980,12(3):363-404
39 Josef. Aspects and Examples of Hot-Strip-mill Modernization MPT(Metallurgical Plant and Technology), 2005(2):26-29
40 Vladimir Tretjakov, Vadim Baryshev. Automatic surface Inspection at the NLMK hot Strip Mill. MPT(Metallurgical Plant and Technology), 2005(5):31-33
41 Ralf Sternitzke. Installation of a new downcoiler at Hoesch Hohenlimburg. MPT(Metallurgical Plant and Technology), 2005(5):42-45
42 Yoshida F, Urabe M. Comouter-Aided Process Design for Tension leveling of clad sheet Metal. Key Engineering Materials, 2000,5(5):177-180
43 Kano H, et a1. Elasto-plastic finite element analysis of strip curvature and internal stress in a roller leveler. MPT(Metallurgical Plant and Technology), 2006(4):313-317
44 Morris J W, Hardy S J, Lees A W, Thomas J T. Formation of residual stressesowingto tension levelling of cold rolled strip. Ironmaking and Steelmaking, 2001,28(1):44-52
45 S. H. Jeong, S. H. Lee, GH. Kim, H. J. Seo, T. H. Kim. Computer simulation of U-channel for under-rail roll forming using rigid-Plastic Finite Dement Methods. Journal of Materials Processing Technology, 2008,7(201):118-122
46 S. L. Srimani, A. C. Pankaj, J. Basu. Analysis of end straightness of rail during manufacturing. International Journal of Mechanical Sciences, 2005,3(47):1847-1848
47 Mehmet Firat, Bilgin Kafianoglu, Orhan Eser. Sheet metal forming analyses with all emphasis on the springback deformation. journal of materials processing technology, 2008,4(196):135-148
48 Hoon Huh, Jin Hyuck Heo, Hyoung Wook Lee. Optimization of a roller levelling process for A17001 T9 pipes with finite dement analysis and Taguchi method. International Journal of Machine Tools&Manufa. 2003,6(43):345-350
49周存龙,徐静,王国栋,刘相华.中厚板在矫直后的残余应力分布分析.重型机械, 2005,5(2):21-25
50周存龙,王国栋,刘相华,秦建平.压弯量对轧件矫直变形影响的有限元分析.塑性工程学报, 2006,6(1):78-81
51周振宇,王立萍,曾庆辉,徐泽宁.斜辊矫直机主传动联轴器的有限元分析.机械设计与制造, 2010,5(5):42-43