히브진동하는 3차원 날개 공력특성

국문 초록 (Abstract)

초소형 작동기 기술의 발전과 함께, 초소형 플랩핑 날개짓 비행체 개발 연구가 활발히 진행중이다. 본 연구에서는 경계요소법을 사용하여 히브진동운동하는 3차원 날개의 운동학적 매개변수인 진동 주파수 및 진폭과 기하학적 변수인 테이퍼 및 종횡비의 변화에 따른 양력 및 추력 특성을 연구했다. 날개짓 주파수가 1Hz 보다 작은 경우 진폭과 무관하게 양력이 발생하지 않았다. 추력계수 값은 날개짓 주파수와 히빙진폭이 클수록 값의 크기가 증가했다. 테이퍼 비와 종횡비가 큰 날개일수록 양력 및 추력 값이 크게 나타났다. 향후 피칭 및 플랩핑 운동 날개의 공력특성변화에 대한 연구를 수행할 예정이다.

다국어 초록 (Multilingual Abstract)

With the progress of micro actuator technology, studies on the development of micro air flapping wing vehicles are actively undergoing. In the present study, the changes of both lift and thrust characteristics of the wings are investigated using a boundary element method. Lift of the heaving wing is not generated when the wing is beating with smaller frequencies than 1 Hz. Thrust increases with amplitude and frequency. As the wing's taper and aspect ratios increase, both lift and thrust also increase. Results on the pitching oscillation and flapping motion will be included in the future work.

목차 (Table of Contents)

• ABSTRACT
• 초록
• Ⅰ. 서론
• Ⅱ. 본론
• Ⅲ. 결과 및 해석
• Ⅳ. 결론
• 후기
• 참고문헌

참고문헌 (Reference)

1 Ho, S., "Unsteady Aerodynamics and Flow Control for Flapping Wing Flyers" 39 : 635-681, 2003

2 Tuncer, I. H, "Thrust Generation Caused by Flapping Airfoils in a Biplane Configuration" 37 (37): 509-515, 2003

3 Michael J.C. Smith, "The Advantages of an Unsteady Panel Method in Modelling the Aerodynamic Forces on Rigid Flapping Wings" 199 : 1073-1083, 1996

4 Persson, P.-O, "Numerical Simulation of Flapping Wings using a Panel Method and a High-Order Navier-Stokes Solver" 1 : 1-20, 2011

5 Katz, J, "Low Speed Aerodynamics" Cambridge University Press 2001

6 Han, C, "Investigation of Unsteady Aerodynamic Characteristics of a Seagull Wing in Level Flight" 6 (6): 2009

7 Kim,D.-K, "Improved Aerodynamic Model for Efficient Analysis of Flapping-Wing Flight" AMER INST AERONAUT ASTRONAUT 49 (49): 868-872, 2011

8 Von Karman, T, "General Aerodynamic Theory - Perfect Fluids, Division E, Vol. Ⅱ, Aerodynamic Theory" 308-, 1943

9 Betz, A, "Ein Beitrag zur Erklarung des Segelfluges" 3 : 269-272, 1912

10 Katzmayr, R, "Effect of Periodic Changes of Angle of Attack on Behavior of Airfoils" 1922

11 Knoller, R, "Die Gesetze des Lufwiderstandes" 3 (3): 1-7, 1909

12 Birnbaum. W, "Der Schlagflugelpropeller und die Kleinen Schwingungen Elastisch Befestiger Tragflüegel" 15 : 128-134, 1924

13 Jones, K. D, "An Experimental and Numerical Investigation of Flapping-Wing Propulsion" 1999

14 DeLaurier, J, "An Aerodynamic Model for Flapping-Wing Flight" 125-130, 1993

15 Rozhdestvensky, K. V, "Aerohydrodynamics of Flapping-wing Propulsors" 39 : 585-633, 2003

16 Truong, Q-T, "A Modified Blade Element Theory for Estimation of Forces Generated by a Beetle-mimicking Flapping Wing System" 6 : 2011