An Efficient Reanalysis Method for Topological Optimization of Vibrating Continuum Structures for Simple and Multiple Eigenfrequencies

Figure 10

Maximizing the second eigenfrequency of a 3D clamped square plate. (a) Iteration histories of the first three eigenfrequencies obtained by exact method. (b) The comparison of convergence curve for the objective function based on exact method and the proposed method.

(a)

(b)