Abstract
항공기의 기체 생존성에 있어서 연료탱크는 중요한 부분이다. 회전익 항공기의 연료탱크는 자기 밀폐성과 내충돌성의 기능을 필요로 한다. 이에 따라 고기능유연연료탱크를 필요로한다. 이 논문에서는 상용 소프트웨어인 MSC.DYTRAN을 이용하여 연료탱크의 낙하시험을 시뮬레이션 하였다. 연료탱크 낙하 시험 시 시험 큐브의 파손 없이 내충돌성 요구조건을 만족하는지 알아보았다. The fuel tank systems of fixed wing and rotary wing aircrafts require the self-sealing and crash-worthiness for their survivability. For these requirements, the flexible composite fuel tank is generally used. In this study, the performance of the flexible composite fuel tank is investigated. The FE simulation includes the drop test of a fuel tank using MSC.DYTRAN. MSC.DYTRAN can provide the fluid-structure modeling of these test from Euler and Lagrange grids. Using MSC.DYTRAN, the finite element modeling of the test cube of the flexible fuel tank and its FE simulation are performed for various environments. The simulation results can show if the test cube satisfies the performance requirements of the fuel tank.
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