论文标题
使用随机软壁台球设计吸收能量的超材料
Design of energy absorbing metamaterials using stochastic soft-wall billiards
论文作者
论文摘要
在本工作中讨论了用于吸收能量和波浪指南特性的人工材料的物理原理。这个想法是将光颗粒插入代表所谓随机台球的软壁版本的弹性耦合潜在井的晶格中。以线性弹性的弹簧和包括一个或几个小颗粒在内的单个电势孔连接到底座的平面案例。在这里，我们分析了3D电势孔的一维晶格中波的演变，里面有光颗粒。通过分配与传播波相对应的初始条件，我们发现可以通过增加颗粒的质量来快速破坏这些波，而电势容器的某些形状可以通过增加晶格的温度来从容器链中提供从容器链到混乱移动的颗粒的准中。
Physical principles for designing artificial materials with energy absorbing and wave guiding properties are discussed in the present work. The idea is to insert light particles in a lattice of elastically coupled potential wells representing soft-wall versions of the so-called stochastic billiards. A planar case of a single potential well attached to the base with a linearly elastic spring and including one or few small particles was considered earlier. Here, we analyze the evolution of waves in a one-dimensional lattice of 3D potential wells with light particles inside. By assigning the initial conditions corresponding to propagating waves we found that the waves can be quickly destroyed by increasing the mass of particles while certain shapes of the potential containers provide a quasi-one-directional energy flow from the chain of containers into the chaotically moving particles by increasing the temperature of the lattice.
