Experimental and numerical data from comparative analysis of candidate structural models for active camber morphing wings
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Experimental Investigation of the Flow Structure over a Delta Wing Via Flow Visualization Methods
Published on: April 23, 2018
1School of Aeronautic Science and Engineering, Beihang University, Beijing 100190, China.
Abstract:
This data article presents modal test data for 30 specimens: 11 uniform and 20 stepped cantilever plates fabricated from FDM-printed PLA and CNC-machined aluminium. The dataset includes modal frequencies and mode shapes measured by scanning laser Doppler vibrometry (SLDV) using chirp excitation (3200 FFT lines). Numerical modal data are provided from finite element models (ABAQUS for uniform plates; Nastran for stepped plates) using beam, shell, solid, beam-beam, beam-plate coupled, and plate-plate formulations. Material parameters are obtained from tensile tests on 21 PLA specimens with seven print orientations to characterise anisotropy. The reusable data comprise raw modal spectra, material stress-strain curves, manufacturing tolerance measurements, FEM input files (inp and bdf), CAD models (stp), and modal animations. This data article supports the companion research article "Comparative modal analysis of beam-plate coupled models for isotropic active camber morphing wings'' and provides a standalone benchmark for validating structural models of rigid-flexible coupled morphing wings.
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