Bio-replicated forming of the biomimetic drag-reducing surfaces in large area based on shark skin

查看全文 作　　者：HAN Xin ZHANG DeYuan LI Xiang LI [1]YuanYue

机构地区：[1]School of Mechanical Engineering and Automation, Beihang University, Beijing 100083, China

出　　处：《Chinese Science Bulletin》索引2008年第53卷第10期,共6页

基　　金：the National Natural Science Foundation of China (Grant No. 50775006);the National Defense Fundamental Research Foundation of China (Grant No. D2120060002) 摘　　要：On the investigation of biomimetic drag-reducing surface, direct replication of the firm scarfskins on low-resistance creatures to form biomimetic drag-reducing surfaces with relatively vivid morphology relative to the living prototype is a new attempt of the bio-replicated forming technology.Taking shark skin as the bio-replication template, the hot embossing method was applied to the microreplication of its outward morphology. Furthermore, the skins were jointed together to form the drag-reducing surface in large area. The results of the resistance measurements in a water tunnel according to the flat-plate sample pieces have shown that the biomimetic shark-skin coating fabricated by the bio-replicated forming method has significant drag reduction effect, and that the drag reduction efficiency reached 8.25% in the test conditions. 关键词：鲨鱼皮生物复制成型热压纹生物学

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Bio-replicated forming of the biomimetic drag-reducing surfaces in large area based on shark skin

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