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信鸽表面形貌的分形特性
  • ISSN号：1000-1298
  • 期刊名称：《农业机械学报》
  • 时间：0
  • 分类：Q954[生物学—动物学] Q811[生物学—生物工程]
  • 作者机构：[1]吉林大学地面机械仿生技术教育部重点实验室,吉林长春130025, [2]吉林大学生物与农业工程学院
  • 相关基金：国家自然科学基金资助项目（项目编号：50635030）和国家“863”高技术研究发展计划资助项目（项目编号：2003AA305080）
作者： 张春华[1], 李建桥[1], 周长海[2]
关键词： 表面形貌, 分形几何, 非光滑, 耦合, Surface morphology, Fractal geometry, Non-smooth, Coupling
中文摘要：

分析了信鸽表面形貌的非光滑特性，并利用激光三维扫描控制系统获取了信鸽背部、胸部及翅膀表面的三维信息，基于分形理论对其表面进行了研究，采用计盒维数方法计算出了信鸽的背部、胸部及翅膀表面面维数和线维数，并分析了其分布。结果表明，信鸽的背部、啕部及翅膀表面均呈现分形特征，面维数范围为：2.8988～2.9788，线维数的范围为：1.0002～1.0247，信鸽表面形貌的分形特性研究为定量分析信鸽表面在空气介质中的减阻机理提供了基础信息。

英文摘要：

The non-smooth morphology of pigeon surface was analyzed. The three dimensions information of the surface of pigeon＇s back, breast and wing were obtained using 3D scanner laser system. The surface was analyzed based on fractal geometry. The surface dimension and linear dimension were calculated using box-counting method, and their distributions were analyzed. It showed that the surface of back,breast and wing all display fractal feature. The range of surface dimension is between 2.8988 and 2.9788, and the range of liner dimension of these three parts is between 1.0002 and 1.0247. The study can provide the basis information for further quantitative analyzing the drag reduction mechanism of the surface of pigeon in the air.

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期刊信息
  • 《农业机械学报》
  • 中国科技核心期刊
  • 主管单位:中国科学技术协会
  • 主办单位:中国农业机械学会 中国农业机械化科学研究院
  • 主编：任露泉
  • 地址：北京德胜门外北沙滩一号6号信箱
  • 邮编：100083
  • 邮箱：njxb@caams.org.cn
  • 电话：010-64882610 64867367
  • 国际标准刊号：ISSN：1000-1298
  • 国内统一刊号：ISSN：11-1964/S
  • 邮发代号:2-363
  • 获奖情况:
  • 荣获中国科协优秀期刊二等奖,1997～2000年连续4年获中国科协择优资金,被列入中国期刊方阵,中国期刊方阵“双效”期刊
  • 国内外数据库收录:
  • 美国化学文摘（网络版）,英国农业与生物科学研究中心文摘,荷兰文摘与引文数据库,美国工程索引,美国剑桥科学文摘,日本日本科学技术振兴机构数据库,中国中国科技核心期刊,中国北大核心期刊（2004版）,中国北大核心期刊（2008版）,中国北大核心期刊（2011版）,中国北大核心期刊（2014版）,中国北大核心期刊（2000版）
  • 被引量:42884