射弹
加速度
电磁感应
有限元法
机械
职位(财务)
功率(物理)
物理
阶段(地层学)
感应线圈
声学
材料科学
机械工程
电磁线圈
工程类
经典力学
热力学
财务
生物
量子力学
古生物学
经济
作者
Daehwan Kwak,Young Bae Kim,Jong Soo Kim,Chuhyun Cho,Kyung-Seung Yang,Seongho Kim,Byung-Ha Lee,Sanghyuk An,Young-Hyun Lee,Seok Han Yoon,In Su Koo,Yong Gi Baik,Y. Jin
出处
期刊:Journal of Magnetics
[The Korean Magnetics Society]
日期:2015-12-31
卷期号:20 (4): 394-399
被引量:4
标识
DOI:10.4283/jmag.2015.20.4.394
摘要
Electromagnetic Induction Launchers (EIL) have been receiving great attention due to their advantages of noncontact between the coils and a projectile.This paper describes the modeling and design of 3-stage EIL to accelerate a copper projectile of 50 kg with 290 mm diameter.Our EIL consists of three independent driving coils and pulsed power modules to generate separate driving currents.To find efficient acceleration conditions, the appropriate shape of the driving coils and the position of the projectile have been calculated by using a finite element analysis (FEA) method.The results showed that the projectile can be accelerated more effectively as the gap between the coils is smaller; a final velocity of 45 m/s was obtained.The acceleration efficiency was estimated to be 23.4% when a total electrical energy of 216 kJ was discharged.
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