[1]王雪军,顾金良,罗红娥,等.电磁轨道炮内弹道接触电阻分析[J].南京理工大学学报(自然科学版),2019,43(03):306-311.
 Wang Xuejun,Gu Jinliang,Luo Honge,et al.Analysis of internal ballistic contact resistance ofelectromagnetic railgun[J].Journal of Nanjing University of Science and Technology,2019,43(03):306-311.
点击复制

电磁轨道炮内弹道接触电阻分析()
分享到:

《南京理工大学学报》(自然科学版)[ISSN:1005-9830/CN:32-1397/N]

卷:
43卷
期数:
2019年03期
页码:
306-311
栏目:
出版日期:
2019-06-30

文章信息/Info

Title:
Analysis of internal ballistic contact resistance ofelectromagnetic railgun
文章编号:
1005-9830(2019)03-0306-06
作者:
王雪军顾金良罗红娥田 慧栗保明
南京理工大学 瞬态物理国家重点实验室,江苏 南京 210094
Author(s):
Wang XuejunGu JinliangLuo Hong’eTian HuiLi Baoming
National Key Laboratory of Transient Physics,Nanjing University of Science and Technology,Nanjing 210094,China
关键词:
电磁轨道炮 接触电阻 电枢 轨道 磁扩散模型 麦克斯韦方程组 霍姆电接触模型
Keywords:
electromagnetic railguns contact resistances armatures tracks magnetic diffusion models Maxwell equations Hom contact model
分类号:
TM89
摘要:
为了研究电磁轨道炮电枢和轨道之间的接触阻抗变化,本文通过建立U型电枢和简单轨道间的磁扩散模型,根据麦克斯韦方程组计算电枢和轨道间的接触压力与电磁推力。在考虑接触形式、接触压力的影响下根据霍姆电接触模型计算电枢运动过程中的接触电阻变化,并通过对电枢的动力学分析引入速度趋肤效应引起的附加接触电阻变化。采用Comsol Multiphysic有限元分析软件对电枢进行力学分析,然后通过该软件与MATLAB联合编程得到在电枢运动过程中接触电阻的变化曲线。发现接触阻抗的变化值为0.22~4.5 mΩ,并且电枢速度对其变化的影响较大。
Abstract:
A magnetic diffusion model for the U-type armature and simple track is established,and the contact pressure and electromagnetic thrust between the armature and track are calculated according to Maxwell equations to study the change of contact impedance between the armature and track of a electromagnetic railgun. Considering the influence of the contact form and contact pressure,the change of contact resistance during armature movement is calculated according to Hom contact model,and the change of additional contact resistance caused by velocity skin effect is introduced into armature dynamic analysis. Comsol Multiphysic finite element analysis software is used to analyze the armature mechanics,and the contact resistance curve in the armature movement process is get through the software and MATLAB joint programming. The change of contact impedance is between 0.22 mΩ and 4.5 mΩ,and the armature velocity has a great influence on the change.

参考文献/References:

[1] Rogeon P,Raoelison R,Carre P,et al. An microscopic approach to determine electrothermal contact conditions during resistance spot welding process[J]. Journal of Heat Transfer,2009,131(2):22-101.
[2]Chen W W,Wang Q J,Kim W. Transient thermomechanical analysis of sliding electrical contacts of elastoplastic bodies,thermal softning,and melting inception[J]. Journal of Tribology,2009,131(2):21-24.
[3]袁瑞敏,袁伟群,徐伟东,等. 电磁发射中枢轨接触电阻特性研究[J]. 电工电能新技,2018,37(1):45-50.
Yuan Ruimin,Yuan Weiqun,Xu Weidong,et al. Research on contact resistance characteristics between armature and rails in electromagnetic launch[J]. Advanced Technology of Electrical Engineering and Energy,2018,37(1):45-50.
[4]徐伟东,袁伟群,陈允,等. 电磁轨道发射器连续发射的滑动电接触[J]. 强激光与粒子束,2012,24(3):668-672.
Xu Weidong,Yuan Weiqun,Chen Yun,et al. Sliding electrical contacts continuously transmitted by electromagnetic railguns[J]. High Power Laser and Particle Beams,2012,24(3):668-672.
[5]Holm R. Electrical contacts[M]. NewYork,USA:Springer,1979.
[6]Galanin M P,Khalimullin Y A,Lototsky A P. 3-D modeling of electromagnetic fields in application to electromagnetic launchers[J]. IEEE Transactions on Magnetics,2003,39(1):134-138.
[7]张春豪. 助飞火箭出筒开关的设计[D]. 上海:上海交通大学机械与动力工程学院,2010.
[8]楼宇涛. 电磁轨道炮管身涡流的理论和实验研究[D]. 南京:南京理工大学瞬态物理国家重点实验室,2017.
[9]李淑君,王惠泉,赵文玉,等. 基于COMSOL多物理场耦合仿真建模方法研究[J]. 机械工程与自动化,2014(4):19-20.
Li Shujun,Wang Huiquan,Zhao Wenyu,et al. Multiphysics coupling simulation modeling methods based on COMSOL[J]. Mechanical Engineering and Automation,2014(4):19-20.
[10]巩飞,翁春生. 电磁轨道炮电枢-导轨接触表面状况数值模拟研究[J]. 南京理工大学学报,2014,38(3):396-401.
Gong Fei,Weng Chunsheng. Numerical study of armature-rail contact interfacial conditions in electromagnetic railguns[J]. Journal of Nanjing University of Science and Technology,2014,38(3):396-401.
[11]袁晓明,吴鹏,陈晓杨,等. 增强型电磁轨道炮电磁结构耦合有限元分析及结构优化设计[J]. 机械设计,2016,33(2):18-23.
Yuan Xiaoming,Wu Peng,Chen Xiaoyang,et al. Electromagnetics structural coupling finite element analysis and structural optimization design of enhanced electromagnetic railgun[J]. Mechanical Design,2016,33(2):18-23.
[12]蒋启龙,付磊. 一种改进型轨道电磁发射方式[J]. 西南交通大学学报,2011,46(4):586-590.
Jiang Qilong,Fu Lei. An improved track electromagnetic emission[J]. Journal of Southwest Jiaotong University,2011,46(4):586-590.
[13]陈允,徐伟东. 电磁发射中铝电枢与不同材料导轨间的滑动电接触特性[J]. 高电压技术,2013,39(4):937-942.
Chen Yun,Xu Weidong. Sliding electrical contact characteristics between aluminum armature and different material guideway in electromagnetic launch[J]. High Voltage Technology,2013,39(4):937-942.
[14]陈晓阳. 增强型电磁轨道炮性能仿真与优化研究[D]. 秦皇岛:燕山大学机械工程学院,2017.

相似文献/References:

[1]巩飞,翁春生.固体电枢熔化波烧蚀的二维数值模拟[J].南京理工大学学报(自然科学版),2012,36(03):487.
 GONG Fei,WENG Chun-sheng.Two-dimensional Numerical Simulation of Melt-wave Erosion in Solid Armatures[J].Journal of Nanjing University of Science and Technology,2012,36(03):487.
[2]林庆华,栗保明.有限元/边界元耦合法计算电磁轨道炮三维瞬态涡流场[J].南京理工大学学报(自然科学版),2010,(02):217.
 LIN Qing-hua,LI Bao-ming.Finite-element/Boundary-element Coupling Method for 3D Transient Eddy Current Field Calculation in Electromagnetic Railgun[J].Journal of Nanjing University of Science and Technology,2010,(03):217.
[3]巩飞,翁春生.电磁轨道炮电枢-导轨接触表面状况数值研究[J].南京理工大学学报(自然科学版),2014,38(03):396.
 Gong Fei,Weng Chunsheng.Numerical study of armaturerail contact interfacial conditions in electromagnetic railguns[J].Journal of Nanjing University of Science and Technology,2014,38(03):396.

备注/Memo

备注/Memo:
收稿日期:2018-09-03 修回日期:2018-10-17
作者简介:王雪军(1993-),女,硕士生,主要研究方向:内弹道接触阻抗测试技术,E-mail:xuejun.wang@njust.edu.cn; 通讯作者:顾金良(1963-),男,研究员,主要研究方向:智能测量与信号处理技术,E-mail:gjlnj@126.com。
引文格式:王雪军,顾金良,罗红娥,等. 电磁轨道炮内弹道接触电阻分析[J]. 南京理工大学学报,2019,43(3):306-311.
投稿网址:http://zrxuebao.njust.edu.cn
更新日期/Last Update: 2019-06-30