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Erschienen in:
2021 | OriginalPaper | Buchkapitel
26. Flutter of Double-Bay Panels with Finite Midbay Stiffness
verfasst von : J. D. Schoneman
Erschienen in: Nonlinear Structures & Systems, Volume 1
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Abstract
Partitioned or multibay panel designs are a common aerostructural configuration and a potential source of concern for dynamic response and flutter analysis. Fortunately, past work has shown that the flutter boundary of an equally partitioned multibay panel is substantially similar to that of a single, isolated panel—identical, in fact, for the double-bay case. A related question concerns the flutter of multibay panels when the intermediate supports are of only finite stiffness. Preliminary investigation on this front reveals that when the intermediate support is not sufficiently stiff, a very large drop in the flutter boundary can occur due to frequency coalescence between even and odd structural modes. This finding has possible design ramifications but may be of even more interest on the experimental front, providing experimental aeroelasticians an additional parameter with which to investigate flutter and postflutter behavior of panels.