蚂蚁附着力的测试及ANSYS分析  

Testing of Wet Adhesive Forces of Ants and ANSYS Analysis

作　　者：周群[1] 于鹏[1] 何斌[1] 岳继光[1] 

机构地区：[1]同济大学控制科学与工程系

出　　处：《同济大学学报（自然科学版）》2008年第5期670-673,共4页Journal of Tongji University:Natural Science

基　　金：国家自然科学基金资助项目(50405045);上海市启明星计划资助(05QMX1455);上海市局管基金资助(04JG05061)

摘　　要：为探究生物学湿吸机制的潜在原理,在自行搭建的微小力测试平台上测量了蚂蚁的水平和垂直方向的吸附力,并且在亲水性表面和疏水性表面分别进行测试,对蚂蚁滑行时分泌液内部的压力和速度分布用有限元软件进行了分析.结果表明,昆虫湿吸对所接触的地面不敏感,吸附具有鲁棒性;滑行时湿吸足垫与分泌液接触面处的受力不均衡,而是由小到大分布,这样有助于昆虫抵抗扰动保持身体平衡.A testing platform for small forces was set up to explore the intrinsic theory of biological wet adhesion mechanism. Adhesive horizontal and vertical forces of ants on both hydrophilic and hydropbobic surfaces were measured. The internal pressure and speed distribution of secretion during ants＇ sliding were analyzed by using finite element method（FEM）. The results show that wet adhesion is not sensitive to the contact surface and has robustness; when pads slide, the forces on the contact surface of the secretion are not balanced but distribute from small to big. In this way, insects can resist disturbance more easily and thus keep their balance.

关 键 词：吸附机制 湿吸 接触角 有限元方法 

分 类 号：G804.6[文化科学—运动人体科学]