Structural Testing and Analysis of a Joined Wing Technology Demonstrator

Abstract

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Design and Analysis of a Dynamic Loading System for a Morphing Winglet

“…Pressure loading utilizes the force of gravity acting on sand and/or water bags [21]. Commonly performed in the aerospace industry at smaller scales, sandbags are used to represent the load distributed along a wing, as shown in Figure 2-5 [22]. The second method utilizes a series of discrete loads to accurately simulate the distributed load.…”

“…3- 21) and (Eq. [3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18][19][20][21][22], the actuator's stroke requirements to achieve a 10°− 80° motion becomes a function of the distance between R1 and P4. By using the provided moment arm of 20-inches, the plots in Figure 3-23 were obtained.…”

Challenges, Ideas, and Innovations of Joined-Wing Configurations: A Concept from the Past, an Opportunity for the Future

“…Reference [301] was conceptually part of the AFRL initiative to have an affordable, fast response scaled aircraft prototype. The effort described the load testing, structural failure, and redesign of the Air Vehicle Joined-Wing Technology Demonstrator (VA JWTD).…”

“…This paper can be considered only a very preliminary work on the aeroelastic scaling, which was studied later by the same group in different publications (see for example references [33,37] discussed later in this section). Several of the above activities (see references [28,227,301]) were summarized in the extensive report of AFRL [226].…”