인문학
사회과학
자연과학
공학
의약학
농수해양학
예술체육학
복합학
DBpia AI
AI 에이전트
AI 아이디어
AI 리더
AI 뷰어
Citeasy
크롬 서지관리 다운로드
지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
초록·키워드
Flare folding wing-tips rely on the adaptive deformation of the structure to reduce the flight load, which can effectively simplify the control system, and has more advantages in cost and weight. To study the effect of the elastic folding wingtip as a passive load alleviation device, the flexible hinges were used to connect the folding wingtip to the wing, and the Doublet Lattice panel method was used to calculate the aerodynamic loads. Static and dynamic load response and flutter analysis were performed on the folding wingtip configurations with different structural parameters, and the effects of the hinge orientation, stiffness, wingtip weight and wingtip center of gravity position on the load response and flutter behavior were investigated. The results show that the flare folding wingtip can significantly reduce the static and sudden wind loads of the wing with suitable parameters. In the static aeroelastic trim analysis, the folding wingtip can increase the span length by 25% with almost no increase in the wing root bending moment and reduce the trim angle of attack by 0.14°. In the gust response analysis, the maximum wing root bending moment can be reduced by nearly 50% comparing with the fixed wing tip, which is only 17% higher than the baseline model without the wing tip. However, the flutter velocity is reduced, and further optimization is needed to improve the flutter characteristics.
인공지능 문자 인식 모델을 통해 추출된 텍스트로, 일부 오타나 오류가 포함될 수 있으나 지속적으로 개선 중입니다.
오류를 발견하셨다면 해당 부분을 드래그한 후 ' 를 통해 신고해주세요.
오류를 발견하셨다면 해당 부분을 드래그한 후 ' 를 통해 신고해주세요.
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