A wet adhesion inspired biomimetic pad with direction dependence and adaptability

作者：Li MingHe^*; He Bin; Qin HaiYan; Zhou YanMin; Lu HanXiong; Yue JiGuang

来源：Chinese Science Bulletin, 2011, 56(18): 1935-1941.

DOI：10.1007/s11434-011-4375-5

• wet adhesion
• bionic pad
• biomimetic adhesion material
• climbing robot
• direction dependence of adhesion

A novel adhesive pad for a climbing robot, inspired by a stick insect's smooth pad, is proposed. The micro structure pattern and inclined fiber of a stick insect's pad are mimicked, and an adhesion force is produced based on its wet adhesion mechanism. Firstly, the wet adhesion model is discussed and the pad is designed; secondly, the adhesion characteristics, adhesion direction dependence and adaptability are analyzed; finally, the proposed pad is fabricated using a thermoplastic elastomer, which is a hydrophilic and viscoelastic material. Experimental results show that the adhesion performance of the pad is good, and normal adhesion and friction can reach to 0.65 N and 3 N. Furthermore, the adhesion of the pad is direction dependent and self-adaptive.

• 出版日期2011-6
• 单位同济大学