论文标题
分级SSH系统中弹性能量收集的拓扑彩虹捕获
Topological rainbow trapping for elastic energy harvesting in graded SSH systems
论文作者
论文摘要
我们从物理中波浪控制的不同区域合并了两个基本设计，并将它们置于弹性的环境中。分级的弹性元信息（所谓的元词）与拓扑绝缘体领域的现在经典的Su-Schrieffer-Heeger（SSH）模型相结合。所得的结构形成一维级别的ssh-metawges，这些级别是支持多个，同时，拓扑保护的边缘状态的。这些强大的，增强的局部模式被利用用于使用压电效应进行弹性能量收集的应用。我们开发的设计首先是通过将SSH模型应用于质量负载的Kirchhoff-Love薄弹性板来激发的。然后，我们将这些想法扩展到使用分级的谐振杆，并创建SSH模型，并耦合到弹性梁和完整的弹性半空间。
We amalgamate two fundamental designs from distinct areas of wave control in physics, and place them in the setting of elasticity. Graded elastic metasurfaces, so-called metawedges, are combined with the now classical Su-Schrieffer-Heeger (SSH) model from the field of topological insulators. The resulting structures form one-dimensional graded-SSH-metawedges that support multiple, simultaneous, topologically protected edge states. These robust, enhanced localised modes are leveraged for applications in elastic energy harvesting using the piezoelectric effect. The designs we develop are first motivated by applying the SSH model to mass-loaded Kirchhoff-Love thin elastic plates. We then extend these ideas to using graded resonant rods, and create SSH models, coupled to elastic beams and full elastic half-spaces.
