The influence of contact shape on the electromagnetic repulsion force of power connector in ETC launch

摘要：

　　During the launch of a high-current electro-thermal chemical(ETC) gun, the power connector suffers a strong electromagnetic repulsion force, which affects the conductive reliability a lot.The contact area between the power connector and the plasma base is essential for the transmission performance.In order to study the effect of the contact surface shape on the electromagnetic force,a finite element model of the power connector was established.Based on the Maxwell equation,the transient electromagnetic field distribution of different contact areas was calculated and.The current distribution, electromagnetic forces were obtained.The simulation results show that the electromagnetic repulsion force is linear to the square of the source current.When the axial length of the contact area increases and the taper decreases, the electromagnetic repulsion force decreases.

关键词： Contact area Electromagnetic force Parametric optimization ETC launch

作者: Ying-tao XU Yong JIN Bo TANG Yuan GAO Shuang-peng HAO Bao-ming LI

作者单位: The National Key Laboratory of Transient Physics, Nanjing University of Science and Technology, Nanj The National Key Laboratory of Transient Physics, Nanjing University of Science and Technology, Nanj

会议类型: 国际会议

会议名称: 2018 International Conference on Defence Technology (2018国际防务技术会议)

会议地点: 北京

会议语种:英文

页码: 110-112

在线出版日期: 2018-10-21（万方平台首次上网日期，不代表论文的发表时间）