Transactions of the Korean Society of Mechanical Engineers A (대한기계학회논문집A)

The Korean Society of Mechanical Engineers (대한기계학회)
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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
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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.

항공산업의 발달로 하늘에는 많은 비행기, UAV, 드론이 비행하고 있다. 비행기와 UAV는 빠른 속도로 비행하며 드론의 프로펠러는 빠른 속도로 회전하고 있다. 이렇게 빠른 속도의 비행체간의 충돌은 비행기 운항과 승객의 안전성을 위협하고, 지상에 있는 인명과 재산에 피해를 줄 수 있다. 비행체의 운항속도는 음속(340m/s) 내외이며, 프로펠러의 회전 속도는 그 보다 작은 속도 영역이다. 현재까지의 충돌 실험은 공기의 힘을 이용한 방식으로 충돌 속도를 얻었고, 공기 팽창에 따른 넓은 공간을 필요로 한다. 하지만 전자기력 발사장치는 그보다 작은 공간에서 충분한 속도를 얻을 수 있다.(~500m/s) 본 논문에서는 전자기력 발사장치의 설계와 이에 따른 제작에 관한 방법을 제시하고자 한다.

Keywords

References

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