[2018-Vol.15-Issue 5]An Optimal Wet Friction Plate Inspired by Biological Surface Patterns
Time: 2018-09-28 14:45  Click:189

Journal of Bionic Engineering

 

September 2018Volume 15, Issue 5pp 872–882

Donghui Chen, Yuchen Zhang, Gang Long, Wei Liu, Xiuhui Li, Youhong Sun, Zhiyong ChangEmail author

1. College of Biological and Agricultural Engineering, Jilin University, Changchun, China

2. Key Laboratory of Bionic Engineering (Ministry of Education), Changchun, China

3. SAIC Motor Technology Center, Shanghai, China

4. National-Local Joint Engineering Laboratory of In-situ Conversion, Drilling and Exploitation Technology for Oil Shale, Changchun, China

5. College of Construction Engineering, Jilin University, Changchun, China

   Abstract

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.

Keywords

tree frog   katydid   wet friction   bionic design   friction characteristics   design of experiment   multivariate orthogonal regression design 

Full text is available at : https://link.springer.com/article/10.1007/s42235-018-0074-0

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