Author : Garabed Zartarian
Publisher :
ISBN 13 :
Total Pages : 170 pages
Book Rating : 4.3/5 (91 download)
Book Synopsis Theoretical and Experimental Studies on Airloads Related to Hypersonic Aeroelastic Problems of General Slender Pointed Configurations by : Garabed Zartarian
Download or read book Theoretical and Experimental Studies on Airloads Related to Hypersonic Aeroelastic Problems of General Slender Pointed Configurations written by Garabed Zartarian and published by . This book was released on 1961 with total page 170 pages. Available in PDF, EPUB and Kindle. Book excerpt: Two approximate techniques for e timating inviscid hypersonic airloads on pointed slender configurations, originally developed for airfoil and bodies of revolution are extended to cover other cross-sectional shapes. The first, an unsteady shock-expansion method, is illustrated by application to two ogives ith earlyelliptic, similar cross sections. A a check, tical analysis, Differential equations, Integral equations.) (*Wings, *Flutter, Mathematical analysis.) Two approximate techniques for e timating inviscid hypersonic airloads on pointed slender configurations, originally developed for airfoil and bodies of revolution are extended to cover other cross-sectional shapes. The first, an unsteady shock-expansion method, is illustrated by application to two ogives ith earlyelliptic, similar cross sections. A a check, steady-flow pressure and total lateral force were measured on two such models, one with a straight and the other with a cambered body axis, in the range of the hypersonic parameter 1.1 less than or equal to K less than or equal to 1.75. Experimental pressures are substantially higher than the predicted ones, although the shapes of the circumferential distributions are in goo agreem nt. The second technique, a variationalRitz procedure valid for lower values of the hypersonic parameter, is applied to a cone and an ogive, both with faired triangular cross sections, following a suitable transformation. Included is a preliminary investigation of the effects of aerodynamic nonlinearity, arising from largeamplitude oscillations, on the flutter characteristics of a typical wing section.
