  In the present work, a highly efficient Moving Morphable Component (MMC)
based approach for multi-resolution topology optimization is proposed. In this
approach, high-resolution optimization results can be obtained with much less
number of degrees of freedoms (DOFs) and design variables since the finite
element analysis model and the design optimization model are totally decoupled
in the MMC-based problem formulation. This is achieved by introducing
super-elements for structural response analysis and adopting a domain
decomposition strategy to preserve the topology complexity of optimized
structures. Both two-and three-dimensional numerical results demonstrate that
substantial computational efforts can be saved with use of the proposed
approach.
