Analysis and discussion on launching mechanism and tactical electromagnetic railgun technology  

作　　者：Bao-ming Li Qing-hua Lin 

机构地区：[1]National Key Laboratory of Transient Physics,Nanjing University of Science and Technology,P.O.Box,210094,Nanjing,PR China [2]China Academy of Ordnance,P.O.Box,100089,Beijing,PR China

出　　处：《Defence Technology（防务技术）》2018年第5期484-495,共12页Defence Technology

摘　　要：This paper begins with a discussion on the significance of multi-physical fields in the research of railgun launching mechanism, followed by an introduction of research work about dynamic measurements and numerical simulations. The application of some measurement methods including the atomic emission spectrum, fiber-optic strain, optical level, pulsed X-ray, and high-speed video in observing the launching process was introduced. The models about the electromechanical dynamic processes and multi-physical fields in a railgun were developed. The mechanisms of the grooving, arc transition, and gouging were analyzed. These work provided a deeper understanding of launching mechanism of electromagnetic railgun. Some issues about the tactical railgun, such as the fiber composite overwrapped barrel, recoil,loading modes and eddy current loss were also discussed. Taking a medium-caliber launcher as an example, the basic process of design and analysis was introduced.This paper begins with a discussion on the significance of multi-physical fields in the research of railgun launching mechanism, followed by an introduction of research work about dynamic measurements and numerical simulations. The application of some measurement methods including the atomic emission spectrum, fiber-optic strain, optical level, pulsed X-ray, and high-speed video in observing the launching process was introduced. The models about the electromechanical dynamic processes and multi-physical fields in a railgun were developed. The mechanisms of the grooving, arc transition, and gouging were analyzed. These work provided a deeper understanding of launching mechanism of electromagnetic railgun. Some issues about the tactical railgun, such as the fiber composite overwrapped barrel, recoil,loading modes and eddy current loss were also discussed. Taking a medium-caliber launcher as an example, the basic process of design and analysis was introduced.

关 键 词：RAILGUN LAUNCHING MECHANISM Dynamic measurement NUMERICAL simulation 

分 类 号：TJ[兵器科学与技术]