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Acta Armamentarii ›› 2019, Vol. 40 ›› Issue (6): 1297-1303.doi: 10.3969/j.issn.1000-1093.2019.06.021

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Research on Recoil Law of Bolt-fastened Railgun

MA Xinke, QIU Qunxian, HE Hang, GAO Bo, GENG Hao, HE Xuguang   

  1. (The 713th Research Institute, China Shipbuilding Industry Corporation, Zhengzhou 450015, Henan, China)
  • Received:2018-08-01 Revised:2018-08-01 Online:2019-08-14

Abstract: The two parallel rails of railgun are subjected to lateral tension during launching. A bolt-fastened encapsulation structure was adopted to restrain the expansion of the rails. For the sake of research on recoil law of bolt-fastened railgun, a launch system model is established, the force acting on the recoils in launching process is analyzed, and a differential equation of recoil and counterrecoil motion is established. For two kinds of counterrecoil mechanison schemes, the recoil of bolt-fastened railgun was simulated and tested. The simulated and experimental results were compared and analyzed. It is concluded that, compared with the conventional gun, the bolt-fastened railgun has the characteristics of short recoil stroke and low recoil velocity, and because of the low recoil velocity, the throttling bar recoil brake used in bolt-fastened railgun needs a smaller flow hole area to improve the recoil force. Key

Key words: railgun, boltfastening, counterrecoilmechanism, recoillaw

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