Parametric effect of large impulse current excited coil on electromagnetic force in coil-sheet system

作     者：许威 方洪渊 曹军 丁文斌 单平 

作者机构：School of Material Science and EngineeringTianjin University Technology Department of Offshore OilOffshore Oil Engineering Company Ltd. Research Center of China Offshore Oil Corporation State Key Laboratory of Advanced Welding Production TechnologyHarbin Institute of Technology 

出 版 物：《中国有色金属学会会刊：英文版》 (Transactions of Nonferrous Metals Society of China)

年 卷 期：2009年第19卷第S3期

页      面：806-810页

核心收录：

学科分类：0808[工学-电气工程] 080803[工学-高电压与绝缘技术] 08[工学] 

基　　金：Project(56605011) supported by the National Natural Science Foundation of China 

主　　题：electromagnetic force parameters of coil impulse current sheet 

摘      要：Based on the method of controlling welding stress with trailing, the electromagnetic force in coil-sheet system was simulated with finite element software ANSYS. The effect of parameters of coil on the electromagnetic force density fy was analyzed. The results show that the maximum electromagnetic force density fy, max in sheet appears in the position near the inner radius of single-turn coil. The position is independent of section shape of coil. fy, max for flat coil is larger than that for long coil and the coil with wedge shape section, while section areas of all coils are equal to each other. The effect of turn number of multiple-turn coil on fy is dependent on the loop resistance in circuit. The kind of coil with more turns and larger inductance is commended while there is larger loop resistance in circuit. fy increases in a certain magnitude while a magnetic core is located in coil. However, the magnitude of fy is limited by saturating magnetic flux of the core.