Free vibrations and supersonic flutter of multilayered laminated cylindrical panels
Authors:
- Aleksander Muc,
- Justyna Flis
Abstract
In the present paper the problems of optimal design of multilayered composite structures subjected to free vibration and supersonic flutter constraints are discussed. The analysis is carried out for laminated flat plates and cylindrical panels with rectangular planform. The solutions are derived with the aid of analytical and finite element formulations. A special attention is focused on the formulation of fundamental relations for panels with the use of the approximate Donnell-Mushtari-Vlasov shallow shell theory. The structures with different boundary conditions, geometrical parameters, angle-ply fibre orientations, discrete stacking sequences and air flow directions are considered. For discrete fibre orientations a new form of design variables (reduced to four only) is proposed and employed successfully in the optimal design. Both for flat plates and cylindrical panels the maximal values of aerodynamic pressures are obtained for angle-ply laminates, and not for discrete (an even number of layers of the same thickness and mechanical properties) stacking sequences.
- Record ID
- CUTbd70b83c95a44e238f51d239fcdf961b
- Publication categories
- ;
- Author
- Journal series
- Composite Structures, ISSN 0263-8223, e-ISSN 1879-1085
- Issue year
- 2020
- Vol
- 246
- Pages
- [1-10]
- Article number
- 112400
- Other elements of collation
- tab.; schem.; wykr.; Bibliografia (na s.) - 10; Bibliografia (liczba pozycji) - 26; Oznaczenie streszczenia - Abstr.; Numeracja w czasopiśmie - Vol. 246
- Keywords in English
- flutter, free vibrations, flat plates, cylindrical panels, optimal design
- DOI
- DOI:10.1016/j.compstruct.2020.112400 Opening in a new tab
- URL
- https://www.sciencedirect.com/science/article/pii/S0263822320302452?via%3Dihub Opening in a new tab
- Language
- eng (en) English
- License
- Score (nominal)
- 140
- Additional fields
- Indeksowana w: Web of Science, Scopus
- Uniform Resource Identifier
- https://cris.pk.edu.pl/info/article/CUTbd70b83c95a44e238f51d239fcdf961b/
- URN
urn:pkr-prod:CUTbd70b83c95a44e238f51d239fcdf961b
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