In this paper, an effective method for the topology optimization of 3D structures is presented. In this method, the structures are analyzed using the voxel finite element method with CG solver. The density approach is adopted as the topology optimization method in order to analyze the 3D topology with fine mesh. The optimality criteria method is used for solving the optimization problem, and the filtering method is used for preventing the checkerboards in the solution. The effectiveness of the present method is demonstrated by some numerical examples.
