Defense Model of Intercepting a High-Velocity Long Rod by Multiple Linear Shaped Charges. Issue 1 (March 2021)

• Record Type: Journal Article
• Authors: Li, Yishu; Cao, Hequan; Yang, Likun; Qin, Chao
• Is Part Of: Journal of physics. Volume 1855:Issue 1(2021)
• Publication Date: 2021-03
• Subjects: Physics -- Congresses; 530.5
• DOI: 10.1088/1742-6596/1855/1/012039
• Languages: English
• ISSNs: 1742-6588

Abstract

Abstract: The interception of high-velocity long rods has always been a difficult problem in defense technology. The existing research lacks the comprehensive analysis on the relationship between the latency, interception position, intercepting velocity, aftereffect damage and other factors in the defense system. In this paper, we first established a time-space rendezvous model of the long rod intercepted by multiple Linear Shaped Charges(LSCs), and then analyzed the fracture model of the long rod, the yaw-ricochet model and the after-effect penetration model of the fractured rods. Finally, the optimal defense model was established. Based on the optimal defense model, the key parameters and their variation rules that affect the defense performance of the protection system were obtained and the key parameters were verified by numerical simulation. It was found that reducing the latency could shorten the length of the front-fractured rod and increasing the number of LSCs could also reduce the average length of the fractured rods. Shortened length of the fractured rods and various attack angles could greatly reduce the penetration depth, and then improve the defense performance. This article has an important significance for the design of the active protection system with LSCs intercepting long rods.