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Comparison of mode shapes for the cantilever rectangular plate with l/b = 1.97 and ν = 0.35 determined by products of beam functions (grids) and FE analysis (dots). The clamped edge is on the right.

Comparison of mode shapes for the cantilever rectangular plate with l/b = 1.97 and ν = 0.35 determined by products of beam functions (grids) and FE analysis (dots). The clamped edge is on the right.

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Context 1
... mode shapes for the plate are also examined in MSC NASTRAN 2018.0 [33] using SOL 103 (normal modes analysis). A comparison of the approximate mode shapes based on products of beam functions to the FE mode shapes is shown in Fig. 8, where the shapes are scaled to have the same absolute maximum displacement. For all the modes presented, the general character of the shapes are the same for both techniques. However, it is also clear that the approximate mode shapes based on products of beam functions (plotted as gridded surfaces), do not perfectly account for the ...

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