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Table 1

Modal optimization problem for structural dynamic scaling.

Objective Function Dimension
Mode shape difference minimization 1
Design Variables

Thicknesses vector [t] 12
Stringer section vector [s] 6
Point mass vector [m] 4

Total design variables: 22

Scaled frequency matching λωωrωm = 0 N
Scaled mass matching λmMrMm = 0 1

Total constraints: N + 1

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