| 仿生挖掘机斗齿减阻试验 |
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| 引用本文： | 张琰,黄河,任露泉.仿生挖掘机斗齿减阻试验[J].吉林大学学报(工学版),2012(Z1):126-130. |
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| 作者姓名： | 张琰 黄河 任露泉 |
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| 作者单位： | 天津科技大学机械工程学院;吉林大学 工程仿生教育部重点实验室 |
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| 基金项目： | 国家自然科学基金重点项目(50635030);吉林大学工程仿生教育部重点实验室开放基金项目(K201201A) |
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| 摘 要： | 为了减小挖掘机斗齿的楔土阻力,提取了蝼蛄前足爪趾的构型,在JL80型斗齿的基础上进行了仿生斗齿设计。采用快速成型加工技术加工了仿生斗齿与JL80型斗齿试样。利用试验机对两种试样进行了楔土试验,测定了楔入阻力与楔入深度的关系。运用有限元分析软件对仿生斗齿和JL80斗齿的楔入过程进行了数值模拟。结果表明,在同样条件下仿生斗齿的楔入阻力较JL80型斗齿低11%。本文设计的仿生斗齿可以为挖掘机斗齿的优化设计提供参考。
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| 关 键 词： | 工程仿生学 工程机械 挖掘机斗齿 蝼蛄 数值模拟 |
Drag reduction experiment of bionic excvavtor bucket teeth |
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| ZHANG Yan,HUANG He,REN Lu-quan.Drag reduction experiment of bionic excvavtor bucket teeth[J].Journal of Jilin University:Eng and Technol Ed,2012(Z1):126-130. |
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| Authors: | ZHANG Yan HUANG He REN Lu-quan |
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| Affiliation: | 1.College of Mechanical Engineering,Tianjin University Science and Technology,Tianjin 300222,China;2.Key Laboratory of Bionic Engineering,Ministry of Education,Jilin University,Changchun 130022,China) |
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| Abstract: | In order to reduce the soil wedging resistance,a bionic excavator bucket teeth was designed based on the JL80 excavator bucket teeth by applying the configuration information of mole cricket foreleg claw.The samples of bionic and JL80 tooth were fabricated by a rapid prototyping machine.The relation between wedging resistance and displacement was measured by wedging experiments using a testing machine.Moreover,the wedging processes of two kinds of excvavtor tooth were numerical simulated by finite element analysis software.The results show that the wedging resistance of bionic bucket teeth is 11% less then that of JL80 bucket teeth under the same experimental condition.The results and conclusions can provide references for optimization design of excvavtor bucket teeth. |
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| Keywords: | bionic engineering engineering machinery excavator bucket teeth mole cricket numerical simulation |
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