本地化因素被用来描述为 P 的结构挥动在 nanoscaled 通常宣传的乐队将近周期的分层的 phononic 晶体。本地化因素被转移矩阵方法基于非局部的有弹性的连续统理论计算。三种将近周期的安排被担心,即,随机的混乱,伪频率和缺点。亚层厚度和集体密度,伪频率的安排和乐队结构和截止频率上的缺点的地点的随机混乱的度的影响详细被分析。
The localization factor is used to describe the band structures for P wave propagating normally in the nanoscaled nearly periodic layered phononic crystals. The localization factor is calculated by the transfer matrix method based on the nonlocal elastic continuum theory.Three kinds of nearly periodic arrangements are concerned, i.e., random disorder, quasiperiodicity and defects. The influences of randomly disordered degree of the sub-layer's thickness and mass density, the arrangement of quasi-periodicity and the location of defect on the band structures and cut-off frequency are analyzed in detail.