Damping material distribution analysis for structural-acoustic optimization

The damping material topology optimization problem of structural-acoustic radiation is discussed. According to the artificial material hypothesis, a novel optimization approach of the damping materials distribution method is introduced. The mathematical formulation about damping material topology optimization is established. Finally, a hexahedral box structures for example, the distribution topology optimization method is illustrated. With topology optimization, material conversion between damping and artificial materials is achieved. Numerical results indicate that the proposed artificial material hypothesis for topology optimization is effective and feasible.