基于智能算法的二维声子晶体最优结构设计

Optimal Structure Design of Two-dimensional Phononic Crystal Based on Intelligent Algorithm

利用智能算法和平面波展开法计算了二维二组元和二维三组元声子晶体的最优材料参数和尺寸参数。平面波展开法结合智能算法来进行结构设计,通过改变结构的尺寸和材料类型,在给定材料和尺寸约束下,使二维二组元和二维三组元声子晶体的相对带隙宽度达到最大,为声子晶体最优结构设计做出了探索。

The optimal parameters of material and size of 2-D 2-component and 3-component phononic crystals were calculated by intelligent algorithms and a plane wave expansion method. In order to make the relative band gap width of 2-D 2-component and 2-D 3-component phononic crystals reach the largest,the plane wave expansion method combines with intelligent algorithm to structure design by changing the structure size and material types under constraints of given materials and the structure size. It makes exploration for the optimal structure design of phononic crystal.