Accession Number : AD0422736

Title :   THEORETICAL AERODYNAMICS OF FLXIBLE WINGS AT LOW SPEEDS. I - ONE-LOBED PARAWINGS.

Descriptive Note : Rept. for 15 Jan 62-15 Feb 63,

Corporate Author : ITEK CORP PALO ALTO CALIF VIDYA DIV

Personal Author(s) : Nielsen,Jack N. ; Kriebel,Anthony R. ; Goodwin,Frederick K.

Report Date : 15 FEB 1963

Pagination or Media Count : 1

Abstract : Very little attention has been paid to the aerodynamics of flexible bodies in steady flight where the aerodynamic shape and loading are directly related to each other in a first-order fashion. Recently several papers have appeared in the literature which treat the theoretical aerodynamics of two-dimensional sails. The interesting thing about these analyses is that the solutions exhibit certain eigenvalue shapes for certain eigenvalues of a nondimensional parameter involving the tension in the flexible surface. One method used appears applicable to three-dimensional slender wings or to use of slender-body theory. It is the purpose of this paper to attempt such a solution for the case of such configurations. Also it appears that the two-dimensional sail theory can be used as a basis of three-dimensional flexible wing theory through the use of strip theory. The theory of such an approach is derived for certain structural restraints at the edges of the flexible wing. (Author)

Descriptors :   (*PARAWINGS, AERODYNAMIC CHARACTERISTICS), (*WINGS, FLEXIBLE SHAFTS), MATHEMATICAL MODELS, AERODYNAMIC LOADING, AERODYNAMIC CONFIGURATIONS, SURFACES, PERTURBATION THEORY, VELOCITY, LIFT, DRAG, LEADING EDGE FLAPS, MATHEMATICAL ANALYSIS, EQUATIONS, SLENDER BODIES, DEFLECTION, DEFORMATION, THEORY

Distribution Statement : APPROVED FOR PUBLIC RELEASE