Scorpion back inspiring sand-resistant surfaces

作     者：张俊秋 韩志武 马荣峰 尹维 吕尤 任露泉 

作者机构：Key Laboratory of Bionics Engineering of Ministry of Education (Jilin University) 

基　　金：Projects(51205161, 51175220, 51290292) supported by the National Natural Science Foundation of China Projects(20120061120051, 20100061110023) supported by Specialized Research Fund for the Doctoral Program of Higher Education of China Project(OSR-04-04) supported by Cooperation and Innovation to National Potential Oil and Gas for Production and Research, China Project(200905016) supported by Ten Outstanding Youth Fund Project of Jilin University, China Project(2012M511345) supported by China Postdoctoral Science Foundation Project(450060481176) supported by Basic Scientific Research Expenses of Jilin University, China 

出 版 物：《Journal of Central South University》 (中南大学学报（英文版）)

年 卷 期：2013年第20卷第4期

页      码：877-888页

摘      要：A new approach which adopted the idea of coupling bionics to improve erosion resistance was presented, by taking the desert scorpion as the research object. The anti-erosion characteristic rules and mechanism of desert scorpion s surface under the dynamics effect of gas/solid mixed media were researched, especially the comprehensive influence mechanism of surface morphology, microstructure, creature flexibility and many other factors was studied. Simulation by CFD software was applied to predict the relative erosion severity. Samples with the coupled bionic configurations and flexibility were produced. Experiment optimum design theory was employed to design experiment scheme. Silica sand of particle size of 105-830 m was used as the erodent. The erosion tests were carried out to validate the simulation results obtained. It is shown that the predicted results are in agreement with those obtained from the experiment. And contrast tests were carried out at the best and worst test points of erosion resistance for four samples. Contrast tests show that the erosion resistance trend occurs in such order with the best erosion resistance as coupling sample, groove, smooth and flexibility, and smooth, and the increasing rate of erosion resistances in sequence of 12.08%, 8.87%, 6.03% in the best test point. But in the poorest point, the increasing rate of erosion resistance is in sequence of 15.64%, 9.53%, 6.59%. The morphologies of eroded surface were examined by the scanning electron microscope, and the possible wear mechanism was discussed.

主 题 词：蝎子 扫描电子显微镜 侵蚀特性 表面形貌 沙面 实验方案 仿生结构 设计理论 

学科分类：0810[工学-土木类] 080503[080503] 0806[工学-电气类] 08[工学] 0805[工学-能源动力学] 0703[理学-化学类] 0812[工学-测绘类] 

核心收录：

D　O　I：10.1007/s11771-013-1561-4

馆 藏 号：203473480...