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Design and Development of Electromagnetic Launcher for Low-High Velocity Impact Test

중고속 충돌 실험을 위한 전자기력 발사장치의 설계와 제작

  • Kim, Hong Kyo (Dept. of Aerospace Engineering, Pusan Nat'l Univ.) ;
  • Noh, Hak Gon (Dept. of Aerospace Engineering, Pusan Nat'l Univ.) ;
  • Kang, Beom Soo (Dept. of Aerospace Engineering, Pusan Nat'l Univ.) ;
  • Kim, Jeong (Dept. of Aerospace Engineering, Pusan Nat'l Univ.)
  • 김홍교 (부산대학교 항공우주공학과) ;
  • 노학곤 (부산대학교 항공우주공학과) ;
  • 강범수 (부산대학교 항공우주공학과) ;
  • 김정 (부산대학교 항공우주공학과)
  • Received : 2016.03.15
  • Accepted : 2016.07.30
  • Published : 2016.10.01

Abstract

Many plane, UAV and drone fly in the sky as development of aviation industry. Plane and UAV fly and drone's propellers rotate so fast. Impact between flying objects which have high velocity threats passengers. Also the impact damages people, building and various property. Plane's operating speed is near sound velocity(340m/s), and propeller's rotating speed is less than that. Until now, impact experiment uses gas gun to get speed and the gun needs large space to entirely air expansion. Electromagnetic launcher, especially railgun, needs smaller space than gas gun to get enough speed about 500m/s. This paper explains electromagnetic launcher's operating principle, shows making electromagnetic launcher design guide line and suggests that it is a better apparatus to get low-high velocity.

Keywords

Electromagnetic Launcher;Railgun;High Velocity Impact;Low Velocity Impact;Impact Test;Lorentz Force;LS-DYNA EM;PSIM Demo

Acknowledgement

Supported by : 한국연구재단

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