蚂蚁的吸附力来源及其分泌液作用  

SOURCE OF ATTACHMENT FORCES OF ANTS AND THE SECRETION EFFECT

作　　者：周群[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：《力学学报》2007年第3期428-432,共5页Chinese Journal of Theoretical and Applied Mechanics

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

摘　　要：基于离心分离技术研制了微小力测试平台,测试到蚂蚁在光滑玻璃上的水平吸附力可达40倍身体重量．用扫描电子显微镜观察了蚂蚁足的形态．分析结果表明分泌液对吸附是很重要的,排除掉真空力、静电力等吸附机制后,推断吸附力主要来源于由分泌液产生的垂直于表面方向的毛细作用力和平行方向的黏性力．用ANSYS分析表明垫子表面微褶皱可迅速排出液体．这些研究可进一步揭开昆虫的吸附机制．A test platform was developed based on the centrifugal technology. Attachment forces of ants measured were found to be 40 times of the body weight. Configuration of claws and pad of ants were observed using scanning electron microscope. Analysis results suggest that the secretion is very important. Besides vacuum force, electrostatic force and other mechanisms, it is likely that capillary force is more significant in the vertical direction and viscosity of the adhesive liquid film dominates in horizontal pulls. Analysis using ANSYS indicates that microfolds on the pad surface facilitate the drainage of the liquid. These results may help to reveal the adhesion mechanisms of insects.

关 键 词：蚂蚁 吸附力 分泌液 液体纳米膜 仿生 

分 类 号：G804.6[文化科学—运动人体科学]