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International Journal of Aerospace Engineering
Volume 2016, Article ID 9212364, 10 pages
http://dx.doi.org/10.1155/2016/9212364
Research Article

Subsonic Flutter of Cantilever Rectangular PC Plate Structure

The Scientific and Technical Research Council of Turkey, Defense Industries Research and Development Institute (TÜBİTAK-SAGE), Mamak, 06261 Ankara, Turkey

Received 20 January 2016; Accepted 23 May 2016

Academic Editor: Hamid M. Lankarani

Copyright © 2016 Kemal Yaman. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Flutter characteristics of cantilever rectangular flexible plate structure under incompressible flow regime are investigated by comparing the results of commercial flutter analysis program ZAERO© with wind tunnel tests conducted in Ankara Wind Tunnel (ART). A rectangular polycarbonate (PC) plate, 5 × 125 × 1000 mm in dimension, is used for both numerical and experimental investigations. Analysis and test results are very compatible with each other. A comparison between two different solution methods (-method and -method) of ZAERO© is also done. It is seen that the -method gives a closer result than the other one. However, -method results are on a conservative side and it is better to use conservative results, namely, -method results. Even if the modal analysis results are used for the flutter analysis for this simple structure, a modal test should be conducted in order to validate the modal analysis results to have accurate flutter analysis results for more complicated structures.