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Influence of Height of Bionic Hexagonal Texture on Tactile Perception

仿生六边形微凸起纹理高度对摩擦触觉感知的影响

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Abstract

It is significant to process textures with special functions similar to animal surfaces based on bionics and improve the friction stability and contact comfort of contact surfaces for the surface texture design of tactile products. In this paper, a bionic hexagonal micro-convex texture was prepared on an acrylic surface by laser processing. The friction mechanism of a finger touching the bionic hexagonal micro-convex texture under different touch speeds and pressures, and the effect of the height of the texture on tactile perception were investigated by finite element, subjective evaluation, friction, and EEG tests. The results showed that the deformation friction was the main friction component when the finger touched the bionic hexagonal texture, and the slipperiness and friction factor showed a significant negative correlation. As the touch speed decreased or the touch force increased, the hysteresis friction of the fingers as well as the interlocking friction increased, and the slipperiness perception decreased. The bionic hexagonal texture with higher convexity caused a higher friction factor, lower slipperiness perception, and lower P300 peak. Hexagonal textures with lower convexity, lower friction factor, and higher slipperiness perception required greater brain attentional resources and intensity of tactile information processing during tactile perception.

摘要

从仿生学角度出发,加工出类似动物表面具有特殊功能的纹理,进而提高接触表面摩擦稳定性和接触舒适性对于触肤产品的表面纹理设计具有重要的指导意义。本文采用激光加工方式在亚克力表面制备了仿生六边形微凸纹理。通过有限元、认知行为学、摩擦学和脑电试验研究了不同触摸速度、压力条件下手指触摸仿生六边形微凸纹理的摩擦机理,探究了仿生六边形微凸纹理高度变化对于摩擦触觉感知的影响。研究表明形变摩擦力是手指触摸仿生六边形微凸纹理的主要摩擦分量,滑溜感和摩擦因数呈现显著负相关关系。随着触摸速度减小或触摸压力增大,手指的滞后摩擦以及互锁摩擦呈增大趋势,滑溜感呈减小趋势。触摸凸起高的仿生六边形纹理引起的摩擦因数大、滑溜感小、P300峰值低。纹理凸起低、摩擦因数小、滑溜感高的六边形微凸纹理在触觉感知过程中需要较大的大脑注意资源和触感信息加工强度。

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Authors and Affiliations

  1. China Coal Technology and Engineering Group Robot Technology Co., Ltd., Shenzhen, Guangdong, 518052, China

    Lei Wang  (王雷) & Yuqin Zhu  (朱玉芹)

  2. School of Mechatronic Engineering, China University of Mining and Technology, Xuzhou, Jiangsu, 221116, China

    Xingxing Fang  (方星星), Shuai Wang  (王帅) & Wei Tang  (唐玮)

Authors
  1. Lei Wang  (王雷)
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  2. Yuqin Zhu  (朱玉芹)
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  3. Xingxing Fang  (方星星)
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  4. Shuai Wang  (王帅)
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  5. Wei Tang  (唐玮)
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Correspondence to Wei Tang  (唐玮).

Additional information

Foundation item: the Project Funded by the Priority Academic Program Development of Jiangsu Higher Education Institutions (No. 48)

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Wang, L., Zhu, Y., Fang, X. et al. Influence of Height of Bionic Hexagonal Texture on Tactile Perception. J. Shanghai Jiaotong Univ. (Sci.) (2023). https://doi.org/10.1007/s12204-023-2648-1

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  • DOI: https://doi.org/10.1007/s12204-023-2648-1

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