국내 최대 기계 및 로봇 연구정보

기술보고서

기술보고서 게시판 내용
타이틀	COUPLING DYNAMICS IN AIRCRAFT: A HISTORICAL PERSPECTIVE
저자	Richard E. Day
Keyword	Coupling dynamics; Coupling modes; F-100 aircraft; Space Shuttle; X-2 aircraft; X-3 aircraft; X-15 aircraft; YF-102 aircraft.
URL	http://www.dfrc.nasa.gov/DTRS/1997/PDF/H-2106.pdf
보고서번호	NASA-SP-532
발행년도	1997
출처	NASA Dryden Flight Research Center
ABSTRACT	Coupling dynamics can produce either adverse or beneficial stability and controllability, depending on the characteristics of the aircraft. This report presents archival anecdotes and analyses of coupling problems experienced by the X-series, Century series, and Space Shuttle aircraft. The three catastrophic sequential coupling modes of the X-2 airplane and the two simultaneous unstable modes of the X-15 and Space Shuttle aircraft are discussed. In addition, the most complex of the coupling interactions, inertia roll coupling, is discussed for the X-2, X-3, F-100A, and YF-102 aircraft. The mechanics of gyroscopics, centrifugal effect, and resonance in coupling dynamics are described. The coupling modes discussed are interacting multiple degrees of freedom of inertial and aerodynamic forces and moments. The aircraft are assumed to be rigid bodies. Structural couplings are not addressed. Various solutions for coupling instabilities are discussed.