Achieving strong robustness in elastic wave routing at subwavelength scale has always been a constant goal in practical applications such as energy harvesting, signal processing and sensor. Recently, topological phases have been widely extended from condensed matter physics to acoustics and mechanics to achieve robust control on the manipulation of acoustic and elastic waves. In this paper, we propose a chiral edge state at the interface between two subwavelength opposite chiral phononic crystals achieving edge state’s robustness higher than the design with the topological $C_{\mathrm{6v}}$ design. The unit cell consists of an array of pillars resonators on a plate arranged in a honeycomb configuration with a chiral variation of their resonant frequencies. It is shown that the robustness of the chiral edge states to defects and perturbations is stronger than that of the topological $C_{\mathrm{6v}}$-symmetry waveguide systems. Furthermore, the harvesting powers of the chiral mechanical systems also show stronger robustness against the frequency disorder and the position disorder and are at least an order of magnitude higher than that of the $C_{\mathrm{6v}}$ designs. Our proposed chiral mechanical systems are foreseen to provide support for the design and manufacturing of miniaturized solid devices for vibration control and sensing.

在亚波长规模的弹性波路由中实现强大的鲁棒性一直是实际应用（例如能量收集，信号处理和传感器）中的不变目标。近来，拓扑阶段已从凝聚态物理广泛扩展到声学和力学，以实现对声波和弹性波操纵的鲁棒控制。在本文中，我们提出了在两个亚波长相反的手性声子晶体之间的界面处的手性边缘态，其边缘态的稳健性高于具有拓扑结构的设计。$C_{\mathrm{6v}}$设计。晶胞由以平板状排列的平板上的柱状谐振器阵列组成，其蜂窝结构具有其谐振频率的手性变化。结果表明，手性边缘态对缺陷和扰动的鲁棒性强于拓扑结构。$C_{\mathrm{6v}}$对称波导系统。此外，手性机械系统的采集能力还表现出更强的抵抗频率无序和位置无序的鲁棒性，并且比手性无序的高至少一个数量级。$C_{\mathrm{6v}}$设计。可以预见我们提出的手性机械系统将为设计和制造用于振动控制和感测的小型固体设备提供支持。