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Journal of the Korea Institute of Military Science and Technology 2008;11(5):12-22.
Impact Dynamic Analysis for the Wheel-Type Landing Gear System of Helicopter
Hyo-Geun Park, Dong-Man Kim, Dong-Hyun Kim, Yun-Mo Cho, Jae-Hoon Chung
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헬리콥터 휠타입 착륙장치 충돌특성 연구
박효근, 김동만, 김동현, 조윤모, 정재훈
1국립경상대학교 기계항공공학부
2국립경상대학교 기계항공공학부 및 항공기부품기술 연구소
3한국항공우주산업 KHP사업부 KHP계통종합팀
Abstract
In this study, the dynamic characteristics for the wheel-type landing gear system of helicopter have been analyzed. Nonlinear multi-body dynamic models of the landing gear system are constructed and the equations of motion, kinematics and internal forces of shock strut are considered. In addition, flexibility effect of the wheel axle with equivalent beam element is taken into account. General purpose commercial finite code, SAMCEF which includes MECANO module is applied. The results of dynamic simulation for various landing and weight conditions are presented and compared with each other. Based on the results, characteristics of impact dynamic behaviors of the landing gear system are practically investigated.
Key Words: Wheel-Type Landing Gear, Nose Landing Gear, Main Landing Gear, Nonlinear Multi-body Dynamics
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