An Optimal Wet Friction Plate Inspired by Biological Surface Patterns  

作　　者：Donghui Chen Yuchen Zhang Gang Long Wei Liu Xiuhui Li Youhong Sun Zhiyong Chang 

机构地区：[1]College of Biological and Agricultural Engineering, Jilin University, Changchun 130022, China [2]Key Laboratory of Bionic Engineering (Ministry of Education), Changchun 130022, China [3]SAIC Motor Technology Center, Shanghai 201804, China [4]National-Local Joint Engineering Laboratory of ln-situ Conversion, Drilling and Exploitation Technology for Oil Shale, Changchun 130021, China [5]College of Construction Engineering, Jilin University, Changchun 130022, China

出　　处：《Journal of Bionic Engineering》2018年第5期872-882,共11页仿生工程学报（英文版）

摘　　要：It is found that many biological organisms exhibit superior adhesion characteristics in wet environments. It has been observed that the foot pads of tree frogs and katydids are consist of a number of closely arranged polygons, most of them are hexagonal. In this paper, the common structure of two kinds of biological foot pad was extracted to model the bionic surface structure of friction plates. The friction plate prototypes were also prepared. Through the multivariate orthogonal regression design, the optimum parameter combination of the friction performances of the prototypes of the bionic plates has been obtained. The hexagonal circumcircle size is 10 mm, the groove width is 1 mm, and the hexagonal diagonal angle is 90~. Then the maximum static friction coefficient, dynamic friction coefficient and wear amount of the optimal friction plate were tested and compared with the control group friction plates. The comparative analysis of the experiment findings demonstrated that the bionic structure with hexagonal ring grooves can significantly improve the friction performance of the friction plates.It is found that many biological organisms exhibit superior adhesion characteristics in wet environments. It has been observed that the foot pads of tree frogs and katydids are consist of a number of closely arranged polygons, most of them are hexagonal. In this paper, the common structure of two kinds of biological foot pad was extracted to model the bionic surface structure of friction plates. The friction plate prototypes were also prepared. Through the multivariate orthogonal regression design, the optimum parameter combination of the friction performances of the prototypes of the bionic plates has been obtained. The hexagonal circumcircle size is 10 mm, the groove width is 1 mm, and the hexagonal diagonal angle is 90~. Then the maximum static friction coefficient, dynamic friction coefficient and wear amount of the optimal friction plate were tested and compared with the control group friction plates. The comparative analysis of the experiment findings demonstrated that the bionic structure with hexagonal ring grooves can significantly improve the friction performance of the friction plates.

关 键 词：tree frog KATYDID wet friction bionic design friction characteristics design of experiment multivariate orthogonal regression design 

分 类 号：S511.062[农业科学—作物学] X132[环境科学与工程—环境科学]