24th Congress of International Council of the Aeronautical Sciences, 29 August-3, September 2004, Yokohama, Japan
Paper ICAS 2004-5.11.3

NATURAL FREQUENCY RESPONSE OF RIGID, CELLULAR SUPPORTED COMPOSITE PLATES

C. B. York
Department of Aerospace Engineering, University of Glasgow, Glasgow, Scotland, UK

Keywords: Natural Frequency, Eigenvalue, Hexagonal, Skew, Specially Orthotropic

An assessment of the natural frequency response for thin, laminated plate arrays is presented for various optimal buckling-strength to weight ratio planform configurations. Comparison is made between isotropic (aluminium) and composite material, in which the laminate stacking sequences have specially orthotropic properties, allowing the use of closed form solutions for the assessment of standard rectangular planform cases.

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