서지주요정보
관절형 로터 운동방정식과 연계된 시간적분 자유후류 예측 기법 개발 = An analysis of articulated non-linear rotor dynamics coupled with time marching free wake
서명 / 저자 관절형 로터 운동방정식과 연계된 시간적분 자유후류 예측 기법 개발 = An analysis of articulated non-linear rotor dynamics coupled with time marching free wake / 정기훈.
저자명 정기훈 ; Chung, Ki-Hoon
발행사항 [대전 : 한국과학기술원, 1998].
Online Access 원문보기 원문인쇄

소장정보

등록번호

8009151

소장위치/청구기호

학술문화관(문화관) 보존서고

MAE 98020

휴대폰 전송

도서상태

이용가능

대출가능

반납예정일

초록정보

The wake geometry and unsteady loading of an articulated three-degree-of freedom blade with hinge off-sets in hover with gust and descent flight is examined. It has been well documented that blade tip vortices are the most dominant structures in the rotor wake. These vortex structures induce high local flow velocities and contribute significantly to the unsteadiness encountered by the rotor blade. Specific types of interactions between blades and tip vortices from preceding blades can produce high-localized pressure fluctuations over the blade surface. It is clearly desirable to include all three aerodynamic force and moment components together with the rotor blade structural dynamics in an integrated solution process. So for the best results about strongly coupled dynamics with unsteady aerodynamics, this can be accomplished by replacing the traditional blade-element methods and prescribed wake model with the unsteady time-marching free wake scheme. Especially for the descent flight as well as hover flight, it is expected that, for an unstable dynamics mode, the disturbance will be generated naturally from the wake. This paper will include a discussion of the linear and non-linear rotor dynamics equation in hover and vertical flight coupled with time-marching free wake scheme.

서지기타정보

서지기타정보
청구기호 {MAE 98020
형태사항 v, 65 p. : 삽도 ; 26 cm
언어 한국어
일반주기 저자명의 영문표기 : Ki-Hoon Chung
지도교수의 한글표기 : 이덕주
지도교수의 영문표기 : Duck-Joo Lee
학위논문 학위논문(석사) - 한국과학기술원 : 항공우주공학과,
서지주기 참고문헌 : p. 37-39
주제 비선형
로터운동
시간적분
자유후류
Nonlinear
Rotor
Dynamics
Freewake
Time-marching
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