Finite Element Analysis of Panel Coil Loaded with Electromagnetic Impact
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摘要: 电磁冲击加载中,成形线圈是电能转化为磁场能的载体,使毛坯产生塑性变形的关键部件。介绍了平板线圈电磁驱动基本原理,通过ANSYS多物理场模拟平板线圈的简化模型,系统研究了线圈几何参数对轴向电磁力的影响;探讨了线圈驱动下驱动片上所受轴向电磁力分布规律及线圈参数对成形设备能量利用率的影响。仿真结果显示:随线圈匝数增加电磁力呈指数增加,随匝间距的增加呈指数减少,随起点距呈近似指数减小;轴向电磁力在线圈距中心轴2/3区域达到最大值;减小电感值有利于提高成形效率。Abstract: During the loading of electromagnetic impact,a panel coil is not only a carrier for electric energy to betransformed into magnetic energy but also a key unit makes a blank plastically deformed. This paper introduces thebasic principle of electromagnetic drive of the panel coil simulates the influence of its geometric parameters on axialelectromagnetic force,probes into the distribution of the electromagnetic force on the drive and the impact of thepanel coil on the efficiency of the equipment power use. The result demonstrates that with the increase of turns,theaxial electromagnetic force increases exponentially; with the increase of the distance between turns,the axial elec-tromagnetic force decreases exponentially and with the increase of inner radius,diminishes almost exponentially.The strongest electromagnetic force is at the region 2/3 away from the symmetrical axis; the decrease of inductancevalue helps improve forming efficiency.
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Key words:
- panel coil /
- finite element method /
- electromagnetic impact
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[1] 佐野利男, 高橋正春.磁束集磁器を利用した電磁縮管成型[J].塑性と加工, 1984, 25(8):731～738 [2] 初红艳, 费仁元, 陆辛.平板件电磁成形时线圈最小尺寸的计算[J]. 中国机械工程, 2003, 14(10):818～822 [3] 初红艳, 费仁元, 陆辛, 杨鲁义.平板件电磁成形用线圈的设计[J]. 中国机械工程, 2004, 15(22): 2031～2036 [4] 常宏等.平板毛坯电磁成形线圈的研究及应用[J]. 锻压技术, 2007, 32(3):7～11 [5] 白金泽等.应用 ANSYS 进行复杂结构应力分析[J].机械科学与技术, 2003, 22(3):441～446 [6] 张倩, 胡仁喜, 康士廷等.ANSYS12. 0 电磁学有限元分析从入门到精通[M].北京:机械工业出版社, 2010 [7] 周立军, 常志华, 黄尚宇.电磁成形机成形效率的影响[J]. 机电工程, 1994, (4):19～21 [8] Lee S H，Lee D N.A finite-element analysis of electromagneticforming for tube expansion[J].Materials Processing Technolo-gy, 1996, 57:311～318 [9] Daehn G S，et al.High-velocity metal forming-an old technologyaddresses new problems[J].Journal of the Minerals，Metals＆ Materials Society, 1995, 7(7):42～45 [10] Yu H P，Li C F.Effects of current frequency on electromagnetictube compression[J]. Journal of Materials Processing Tech-nology, 2009:1053～1059 -
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