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Journal of the Korea Institute of Military Science and Technology 2007;10(4):81-87.
Multi-body Dynamic Structural Dynamic Analysis of a Canopy System for Supersonic Fighter Considering Backup Emergency Egress Conditions
Dong-Hyun Kim, Dong-Man Kim, Young-Woo Kim, Jian-Ming Yang
1Department of Mechanical Engineering of Huaihai Institute of Technology
2KAI
3
대체 비상탈출 조건을 고려한 초음속 전투기용 캐노피 작동부 구조해석
김동현, 김동만, 김영우, 양건명
1국립경상대학교 기계항공공학부 및 항공기 부품기술연구소
2한국항공우주산업
3국립경상대학교 기계항공공학부
Abstract
In this study, analysis of structural design criteria for the canopy actuating device has been conducted considering the aerodynamic breakaway capabilities of jettisonable canopy system. Unsteady aerodynamic loads for the opened canopy configuration at passively controlled jettision mode were computed using CFD method. The general purpose multi-body finite element code, SAMCEF Mecano, is used in the implemented analyses for the passive jettision condition. The recommended altitude and speed of aircraft was suggested as design criteria of aerodynamic breakaway capability of jettisonable canopy system as a bakup egress method when normal canopy jettison sequence malfunctioned. Aerodynamic breakaway condition of jettisonable canopy was also simulated and the fracture load conditions of canopy actuator were investigated.
Key Words: Computational Fluid Dynamics, Canopy System, Finite Element Method, Backup Emergency Egress, Nonlinear Multi-body Dynamics
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