Abstract Directional response is of great use both in daily life and in technological areas, for example, in a semiconductor diode or the directional propagation of waves. We realize a mechanical directional response, i.e., one-way displacement transmission, using a novel topological mechanical metamaterial. The one-way transmission is predicted by theoretical analysis and verified by simulations and experiments. The difference in the directional response when the structure is loaded at opposite sides can reach many dozen-fold. A design guide for the displacement reduction factor is proposed to achieve a more significant one-way transmission property. The proposed topological mechanical metamaterial provides a new concept in achieving a directional response and could be applied as signal transport and isolation, mechanical diodes, mechanical logic gates and so on.

中文翻译：

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基于自锁的拓扑机械超材料单向传输

摘要 定向响应在日常生活和技术领域都有很大用处，例如，在半导体二极管或波的定向传播中。我们使用新型拓扑机械超材料实现了机械方向响应，即单向位移传输。单向传输是通过理论分析预测并通过模拟和实验验证的。当结构在相对两侧加载时，方向响应的差异可以达到几十倍。提出了位移折减系数的设计指南，以实现更显着的单向传输特性。提出的拓扑机械超材料提供了实现定向响应的新概念，可用作信号传输和隔离、机械二极管、