Bidirectional Object Transport on Biomimetic Setal Array with Friction Anisotropy

IF 3.3 3区工程技术 Q2 ENGINEERING, CHEMICAL Tribology Letters Pub Date : 2025-04-10 DOI:10.1007/s11249-025-01993-2

Zhuyu Zhou, Tianyuan Liu, Xiyin Gu, Zhongmeng Zhu, Qian Cheng, Han Jiang

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Abstract

The friction anisotropy arising from the unique deformation mechanism of insect setae holds significant potential for object transport applications. This study presents a biomimetic setal array, which is capable of achieving controllable bidirectional transport of objects under vibration excitation. Experimental results reveal a complex phenomenon: as the vibration frequency increases, the transport velocity of the object initially increases, subsequently decreases and reverses direction, and ultimately undergoes another reversal of transporting direction at a significantly higher velocity. The effect of friction anisotropy on this phenomenon is thoroughly investigated through analysis of the transport process and the friction behavior of insect setae in nature. Additionally, an analytical model is developed, revealing the underlying mechanism of transport and providing a guidance for transport regulation. Following a detailed discussion on the effect of object mass on this novel transport strategy, this biomimetic setal array is demonstrated to enable controllable sorting and intelligent transport of objects.

Graphical Abstract

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具有摩擦各向异性的仿生设置阵列的双向物体传输

昆虫刚毛独特的变形机制所产生的摩擦各向异性在物体运输应用方面具有巨大潜力。本研究提出了一种仿生刚毛阵列，它能够在振动激励下实现物体的可控双向传输。实验结果揭示了一个复杂的现象：随着振动频率的增加，物体的运输速度开始增加，随后减小并反转方向，最终以明显更高的速度再次反转运输方向。通过分析自然界中昆虫刚毛的传输过程和摩擦行为，深入研究了摩擦各向异性对这一现象的影响。此外，还建立了一个分析模型，揭示了传输的基本机制，并为传输调节提供了指导。在详细讨论了物体质量对这种新型传输策略的影响之后，展示了这种仿生刚毛阵列，以实现物体的可控分类和智能传输。

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来源期刊

Tribology Letters 工程技术-工程：化工

CiteScore

5.30

自引率

9.40%

发文量

116

审稿时长

2.5 months

期刊介绍： Tribology Letters is devoted to the development of the science of tribology and its applications, particularly focusing on publishing high-quality papers at the forefront of tribological science and that address the fundamentals of friction, lubrication, wear, or adhesion. The journal facilitates communication and exchange of seminal ideas among thousands of practitioners who are engaged worldwide in the pursuit of tribology-based science and technology.