摘要
用电子显微镜研究了蝗虫足掌的微结构 ,用非线性有限元方法分析足掌接触过程的变形规律、接触刚度及接触面积、气囊的作用和足掌的应力应变规律 .结果表明 ,蝗虫足掌以软性外表皮包含血浆 (液体 )的结构形式 ,有利于降低接触刚度、增加接触面积 ,并使爪垫在接触过程便产生有利于稳定附着的摩擦力 .软性外表皮内的树丛状杆组织结构会提高足掌在各种表面上的适应性 。
Studies on the geometric design, microstructure of the smooth arolia of locust's pads and its contact mechanics will help us to understand the functions of geometric and material design of the pads, to instruct the design of artificial pads and to control the insects. The paper reported a study on the microstructure of the pads by using scanning electronic microscopy, analysis on the deformation, contact stiffness, contact area, function of air sack and strain fields during contact procedure by using finite element methods. The results suggest that the design of locust's pads soft exocuticle containing haemolymph inside is effective in reducing the contact stiffness, increasing contact area and generating friction force during the contact procedure from normal direction. Rod-containing structure attached on the soft exocuticle results in high adaptability of the pads on various surfaces and decreasing the stress inside of the pads.
出处
《上海交通大学学报》
EI
CAS
CSCD
北大核心
2003年第1期66-69,共4页
Journal of Shanghai Jiaotong University
