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http://dx.doi.org/10.7734/COSEIK.2012.25.5.405

Numerical Simulation of Bullet Impact for Fuel Cell of Rotorcraft  

Kim, Hyun-Gi (한국항공우주연구원 항공계통팀)
Kim, Sung Chan (한국항공우주연구원 항공계통팀)
Publication Information
Journal of the Computational Structural Engineering Institute of Korea / v.25, no.5, 2012 , pp. 405-411 More about this Journal
Abstract
Inside a rotorcraft fuel cell, pipes and components are located for fuel storage and fuel supply into the engine. Utility helicopters, operated in battle fields, fly at lower altitude compared to fixed-wing aircraft and hence are more likely to be exposed to gunfire. Since internal pressure of fluid increases when hit, the effect on LRU due to increase in pressure must taken into account when designing the aircraft for survivability. However, it is costly and time consuming to manufacture a fuel cell for gunfire test, and due to constraints from usage of live ammunition, related data gathered through numerical simulation is needed. In this study, numerical simulation on rotorcraft fuel cell exposed to gunfire was carried out using Autodyn to analyze bullet movement inside the fuel cell after hit, and internal pressure of fluid and equivalent stress on fuel cell assessed.
Keywords
fuel cell; MIL-DTL-27422D; gunfire resistance test; self-sealing;
Citations & Related Records
Times Cited By KSCI : 5  (Citation Analysis)
연도 인용수 순위
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