• 제목/요약/키워드: soldier's wind

검색결과 2건 처리시간 0.014초

드론을 활용한 풍향풍속이 적용된 박격포용 극표정법 프로그램 개발 (The Development of Mortar POLAR Program with Windward Wind Speed use Drones)

  • 황휘;김정환
    • 대한임베디드공학회논문지
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    • 제18권4호
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    • pp.185-194
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    • 2023
  • Currently, drones are used in various fields such as transportation, agriculture and military. Especially, drones for military use are developed and utilized in many ways such as reconnaissance and bombing to minimize one's own damages. Nevertheless, they are developed as new weapons of modern types, so it is difficult to use them together with existing weapons. In this study, a drone program for effective bombing of mortar, which is often used in modern warfare, is developed. In mortar, a forward soldier comprehends the location of enemy for its distance and altitude, input them in data computer of launching angle, and applies the result value to cannon to launch. However, the existing method has low accuracy of bombing because observing shall be done within 1km from the target, and measuring accurate direction and velocity of the wind is difficult. Whereas, in the program of this study, the location of target, GPS, direction and velocity of the wind, and altitude are measured through drone. Each digit is used to calculate bombing specification for optimal bombing through the calculating formula of launching angle. In addition, when specifications are input in the program, the calculation is done automatically, so that it can be used in various mortars and shells. With the use of the program in this study, the location of enemy can be comprehended, and bombing specifications can be calculated quickly. It also enables the intensity of the wind to be applied for accurate bombing.

활주로 방향에 수직인 유동이 활주로에 미치는 영향에 대한 3차원 수치해석 (The 3D numerical analysis on runway with the flow in direction perpendicular to the runway)

  • 홍교영;신동진
    • 한국항행학회논문지
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    • 제14권4호
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    • pp.479-488
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    • 2010
  • 본 논문은 활주로 방향에 수직인 바람이 불어올 때 이로 인하여 활주로에 발생되는 유동현상과 받음각 변화량을 3차원 수치해석을 통하여 연구하였다. 3차원 수치해석결과 활주로 주변 시설물에서 발생된 후류로 인하여 활주로 상에서 발생되는 받음각 변화량의 최대진폭은 $6^{\circ}$이고 그 지속 시간은 약 1초 이내로 나타났으며 전체적으로 보면 불규칙적인 비주기적 성향으로 나타난다. 특히 시설물 사이를 통과한 빠른 흐름으로 인하여 발생된 후류가 병합되면서 더욱 강한 후류영역을 발생시켜 활주로 상에서 심각한 이착륙 불안정성을 발생시킬 것으로 예상된다.