穿孔机预应力机架有限元分析
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摘要
穿孔机是轧制钢管的重要设备,而机架又是穿孔机的核心组成部分。随着社会对轧制产品数量需求和对产品质量要求的提高,对穿孔机机架的承载能力和可靠性要求也越来越高。由于穿孔现场工作条件的限制,对穿孔机机架系统组成部件危险部位的应力测试无法进行,为了掌握穿孔机机架在工作载荷作用下应力水平和变形情况,就必须通过有限元分析法来实现。
本文以宝钢无缝钢管公司SMS MEER设计的穿孔机机架系统为研究对象,利用接触分析和节点耦合技术将机架系统组成部件联接起来,进行了整体有限元分析。
针对该穿孔机机架为预应力机架,有限元分析采用分步载荷的方法,把预紧力做为第一步载荷,工作载荷做为第二步载荷,分步计算,直观地得到了机架在各步载荷作用下的变形及应力分布情况。根据机架各部位的变形,算出了机架的刚度,并确定了轧辊箱与机架之间的装配间隙最小值。
在整体分析的基础上,利用子模型技术,对应力集中部位建立子模型进行有限元分析;对机架压下螺母孔的过渡圆弧面,通过改进其结构有效地改善了该处的应力集中;并根据机架压下螺母孔的变形,确定了压下螺母与机架压下螺母孔之间的装配间隙最小值。
Piercing mill is the most important equipment on the rolling pipe line,and the frame is the nucleal component of the piercing mill.As the increased demant on the rolled product,and the improvement of the product quality, Piercing mill frame must be the higher carrying and rel- -iability .Because of the restriction of the working conditioninthe locale , the stress test on the dangerous place of the parts , can’t be carried out usually ,and to obtain the stress value of the piercing mill frame ,FEA method must be taken.
In this paper, assembly of the Piercing mill frame is constructby using contact analysis technique and node coupling technique to make FEA.
Aimed at the piercing mill frame which is prestress frame,the FEA use substep approach load ,that preload is a first step to load and work load as a second load, the rack in each step under the load deformation and stress distribution is obtained.According to the deformation of frame, the stiffness of the frame is calculate, and the Minnimum of assemblage clearance between roll-box and frame is determined
On the basis of global analysis,submodel anslysis is used on the position of stress concentration; stress concentrtion improved effectively on the transition curved surface of pressure nut aperture by using strcture improvement. According to the deforming of frame pressure nut aperture, the Minnimum of assemblage clearance between pressure nut and frame pressure nut aperture is determined.
本文以宝钢无缝钢管公司SMS MEER设计的穿孔机机架系统为研究对象,利用接触分析和节点耦合技术将机架系统组成部件联接起来,进行了整体有限元分析。
针对该穿孔机机架为预应力机架,有限元分析采用分步载荷的方法,把预紧力做为第一步载荷,工作载荷做为第二步载荷,分步计算,直观地得到了机架在各步载荷作用下的变形及应力分布情况。根据机架各部位的变形,算出了机架的刚度,并确定了轧辊箱与机架之间的装配间隙最小值。
在整体分析的基础上,利用子模型技术,对应力集中部位建立子模型进行有限元分析;对机架压下螺母孔的过渡圆弧面,通过改进其结构有效地改善了该处的应力集中;并根据机架压下螺母孔的变形,确定了压下螺母与机架压下螺母孔之间的装配间隙最小值。
Piercing mill is the most important equipment on the rolling pipe line,and the frame is the nucleal component of the piercing mill.As the increased demant on the rolled product,and the improvement of the product quality, Piercing mill frame must be the higher carrying and rel- -iability .Because of the restriction of the working conditioninthe locale , the stress test on the dangerous place of the parts , can’t be carried out usually ,and to obtain the stress value of the piercing mill frame ,FEA method must be taken.
In this paper, assembly of the Piercing mill frame is constructby using contact analysis technique and node coupling technique to make FEA.
Aimed at the piercing mill frame which is prestress frame,the FEA use substep approach load ,that preload is a first step to load and work load as a second load, the rack in each step under the load deformation and stress distribution is obtained.According to the deformation of frame, the stiffness of the frame is calculate, and the Minnimum of assemblage clearance between roll-box and frame is determined
On the basis of global analysis,submodel anslysis is used on the position of stress concentration; stress concentrtion improved effectively on the transition curved surface of pressure nut aperture by using strcture improvement. According to the deforming of frame pressure nut aperture, the Minnimum of assemblage clearance between pressure nut and frame pressure nut aperture is determined.
引文
[1] 钢管轧制、挤压和拉拔工艺理论[M].北京钢铁学院,1980
[2] 张才安.无缝钢管生产新技术[M].重庆:重庆大学出版社,1997
[3] 刘松泉.我国钢管生产现状及展望[M].钢管,1995 (5):1-5
[4] 何慎.二辊钢管斜轧伸过程计算机模拟系统的研究.[博士学位论文].北京科技大学 1998
[5] Hans Tachim Pahle. Position of the seamless steel take on the world market and in China.steel&tube. 1998. 13(4). pp23-33
[6] 钢管斜轧理论及生产过程的数值模拟[M].双远华、李国桢,冶金工业出版社 ,2001
[7] 候颜.轧管技术发展与进步[J] 钢管,1997 (6):58-61
[8] 孙树青,包钢连轧钢管厂穿孔机主轴断裂分析与研究,硕士学位论文,北京科技大学.20050228
[9] 金如崧译注.曼内斯曼兄弟和斜轧穿孔工艺的发明[M].钢管,1996,6;28(3):45
[10] 丁立军.斜轧穿孔轴向力的确定[J].山西机械,2001,9:50-56
[11] 李连诗等.小型无缝钢管生产[M].冶金工业出版社:1989,8,
[12] 李连诗,韩观昌.钢管轧制[M];11(3):12—13
[13] 崔学芳, 陈进, 王勇勤, 王进.Φ350 穿孔机的轧制压力和轧制扭矩在线测试[J] 重庆建筑大学学报 2004,8 :62-65
[14] 戴一一,周永乐,屠挺生.穿孔机机架负荷应力的边界元分析[J].上海大学学报(自然科学版),1998, 6:337—343
[15] 罗正声.钢管斜轧机机架的有限元分析[J].钢管,1996,6:14—17
[16] 曾幼宗编译.斜轧穿孔机———现代化无缝钢管生产的关键设备[J].钢管,2002,8;31(4):51—54
[17] Liu C et al. Finite- element modelling of deformation and spread in slab rolling. Int.J.MECH.Sci.,1985;27:531-541
[18] T.Yokbori.Fracture.1981:1145
[19] 杨康乐,王建平.Ф100mm 穿孔机机架的有限元分析[J].上海金属, 1992
[20] 欧恒安,王思明 皮尔格钢管轧机机架的有限元分析[J] 重型机械, 1994
[21] R Jose Montecinos, E Sau Arauco.An investigation into the rolling process of copper tubes Journal of Materials Processing Technology 95 (1999) 139-144
[22] Bergh, Maria Omkonstruktion av r?rvalsverk: nytt ?verfall till h?lverk.maskin- och materialteknik
[23] Morioka.N,Oka.H,Simizu.T .Development of manufacturing technology for high alloy steel seamless pipe by Mannesmann process.Kawasaki teel Technical Report (Japan).[J] Vol.38, pp.38-46.Apr.1998
[24] Sakurada, KFunyu,YOkumura, T Process Computer System of Kawasaki's New SeamlessPipe Mill.Automation in Mining, Mineral and Metal Processing; Montreal;Canada;18-20 Aug[M] 1980. pp. 547-552. 1980
[25] Eno,K Development of Direct Quenching Process in a Medium Diameter Seamless Pipe Mill Kawasaki Steel Giho. Vol. 14, no. 3, pp. 334-341. 1982
[26] Johann H. Rohde, Burkhart Schifferings, Rolf Kummerling, Jochen Vochsen, Karl H. Hausler, Gunther Voswinckel.Method of longitudinal rolling of seamless pipe [M]
[27] Nakahashi, T Morioka, N Hasunuma, J Kita, M Itadani, S Yokomakura, K . Development of Rolling Technique for Stainless Steel Seamless Pipe with Plug Mill Process.Iron and Steelmaker[J] Vol.30,no.11,pp.37-42.Nov. 2003
[28] Hayashi,Chihiro(Sendai-shi,JP).Piercing method for manufacturing of seamless pipe [J]
[29] 吴维 有限元分析的发展趋势[J]
[30] 尹柏生 有限元分析系统的发展现状与展望[Z]
[30] 赵汝嘉编 机械结构有限元分析]M] 西安交通大学出版社1990.3
[32] (美)saeed Moaveni 著有限元分析:ANSYS 理论与以应用[M] 电子工业出版社
[33] 傅永华著 有限元分析基础[M] 武汉大学出版社2003
[34] 姜晋庆,张铎编著结构弹塑性有限元分析法[M] 科学出版社2002
[35] 张汝清,詹先义编著 非线性有限元分析[M] 重庆大学出版社
[36] 刘国庆,杨庆东编 ANSYS工程应用教程机械篇[M] 中国铁道出版社
[37] 徐 灏 机械设计手册 第二卷 化学工业出版社
[38] JC Simo.T A Laursen. An augmented Lagrangian treatment of contact Problems involving fction[J].Computer&Structures,1992,42(1):97-116
[39] JC Simo,PWriggers,RL Taylor. A perturbed Lagrangian formulation for the finite element Solution of contact Problems[J].ComPut.Methods APPI Mech.Engrg,1985,50:163-180
[40] Tom Iseley, Trenchless pipe line rehabilitation, Constructor, October 1992
[41] Xu S G et al.simulation of ring rolling using a rigid-plastic finite element model.Int.J.Mech. sci.,1991;33(5);393-401
[42] Tomyuki .Analysis of strip rolling by the finite element method.advanced technology of plasticity,1984;1132-1136
[43] 李友荣. 预应力轧机机架静力分析[J] 武汉钢铁学院学报. 1982.2
[2] 张才安.无缝钢管生产新技术[M].重庆:重庆大学出版社,1997
[3] 刘松泉.我国钢管生产现状及展望[M].钢管,1995 (5):1-5
[4] 何慎.二辊钢管斜轧伸过程计算机模拟系统的研究.[博士学位论文].北京科技大学 1998
[5] Hans Tachim Pahle. Position of the seamless steel take on the world market and in China.steel&tube. 1998. 13(4). pp23-33
[6] 钢管斜轧理论及生产过程的数值模拟[M].双远华、李国桢,冶金工业出版社 ,2001
[7] 候颜.轧管技术发展与进步[J] 钢管,1997 (6):58-61
[8] 孙树青,包钢连轧钢管厂穿孔机主轴断裂分析与研究,硕士学位论文,北京科技大学.20050228
[9] 金如崧译注.曼内斯曼兄弟和斜轧穿孔工艺的发明[M].钢管,1996,6;28(3):45
[10] 丁立军.斜轧穿孔轴向力的确定[J].山西机械,2001,9:50-56
[11] 李连诗等.小型无缝钢管生产[M].冶金工业出版社:1989,8,
[12] 李连诗,韩观昌.钢管轧制[M];11(3):12—13
[13] 崔学芳, 陈进, 王勇勤, 王进.Φ350 穿孔机的轧制压力和轧制扭矩在线测试[J] 重庆建筑大学学报 2004,8 :62-65
[14] 戴一一,周永乐,屠挺生.穿孔机机架负荷应力的边界元分析[J].上海大学学报(自然科学版),1998, 6:337—343
[15] 罗正声.钢管斜轧机机架的有限元分析[J].钢管,1996,6:14—17
[16] 曾幼宗编译.斜轧穿孔机———现代化无缝钢管生产的关键设备[J].钢管,2002,8;31(4):51—54
[17] Liu C et al. Finite- element modelling of deformation and spread in slab rolling. Int.J.MECH.Sci.,1985;27:531-541
[18] T.Yokbori.Fracture.1981:1145
[19] 杨康乐,王建平.Ф100mm 穿孔机机架的有限元分析[J].上海金属, 1992
[20] 欧恒安,王思明 皮尔格钢管轧机机架的有限元分析[J] 重型机械, 1994
[21] R Jose Montecinos, E Sau Arauco.An investigation into the rolling process of copper tubes Journal of Materials Processing Technology 95 (1999) 139-144
[22] Bergh, Maria Omkonstruktion av r?rvalsverk: nytt ?verfall till h?lverk.maskin- och materialteknik
[23] Morioka.N,Oka.H,Simizu.T .Development of manufacturing technology for high alloy steel seamless pipe by Mannesmann process.Kawasaki teel Technical Report (Japan).[J] Vol.38, pp.38-46.Apr.1998
[24] Sakurada, KFunyu,YOkumura, T Process Computer System of Kawasaki's New SeamlessPipe Mill.Automation in Mining, Mineral and Metal Processing; Montreal;Canada;18-20 Aug[M] 1980. pp. 547-552. 1980
[25] Eno,K Development of Direct Quenching Process in a Medium Diameter Seamless Pipe Mill Kawasaki Steel Giho. Vol. 14, no. 3, pp. 334-341. 1982
[26] Johann H. Rohde, Burkhart Schifferings, Rolf Kummerling, Jochen Vochsen, Karl H. Hausler, Gunther Voswinckel.Method of longitudinal rolling of seamless pipe [M]
[27] Nakahashi, T Morioka, N Hasunuma, J Kita, M Itadani, S Yokomakura, K . Development of Rolling Technique for Stainless Steel Seamless Pipe with Plug Mill Process.Iron and Steelmaker[J] Vol.30,no.11,pp.37-42.Nov. 2003
[28] Hayashi,Chihiro(Sendai-shi,JP).Piercing method for manufacturing of seamless pipe [J]
[29] 吴维 有限元分析的发展趋势[J]
[30] 尹柏生 有限元分析系统的发展现状与展望[Z]
[30] 赵汝嘉编 机械结构有限元分析]M] 西安交通大学出版社1990.3
[32] (美)saeed Moaveni 著有限元分析:ANSYS 理论与以应用[M] 电子工业出版社
[33] 傅永华著 有限元分析基础[M] 武汉大学出版社2003
[34] 姜晋庆,张铎编著结构弹塑性有限元分析法[M] 科学出版社2002
[35] 张汝清,詹先义编著 非线性有限元分析[M] 重庆大学出版社
[36] 刘国庆,杨庆东编 ANSYS工程应用教程机械篇[M] 中国铁道出版社
[37] 徐 灏 机械设计手册 第二卷 化学工业出版社
[38] JC Simo.T A Laursen. An augmented Lagrangian treatment of contact Problems involving fction[J].Computer&Structures,1992,42(1):97-116
[39] JC Simo,PWriggers,RL Taylor. A perturbed Lagrangian formulation for the finite element Solution of contact Problems[J].ComPut.Methods APPI Mech.Engrg,1985,50:163-180
[40] Tom Iseley, Trenchless pipe line rehabilitation, Constructor, October 1992
[41] Xu S G et al.simulation of ring rolling using a rigid-plastic finite element model.Int.J.Mech. sci.,1991;33(5);393-401
[42] Tomyuki .Analysis of strip rolling by the finite element method.advanced technology of plasticity,1984;1132-1136
[43] 李友荣. 预应力轧机机架静力分析[J] 武汉钢铁学院学报. 1982.2