Figure 3: Schematic showing MAC and TRAC MODEL DESCRIPTION To demonstrate the expansion technique to be used for determining displacement for dynamic stress and strain from limited sensor locations, an analytical study was performed on a model that resembles typical blade construction of a wind turbine. The box-beam model used for analysis is shown in Figure 4a. The dimensions of the model are: 1. Length (l) = 60 inches 2. Breadth (b) = 12 inches 3. Width (w) = 6 inches 4. Thickness of top and bottom plates (t1) = 0.5 inches 5. Thickness of internal ribs (t2) = 0.25 inches 6. Material – Aluminum 191
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