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基于有限元方法的蜘蛛网阻拦猎物过程模拟

于晖 杨嘉陵 刘华

于晖, 杨嘉陵, 刘华等 . 基于有限元方法的蜘蛛网阻拦猎物过程模拟[J]. 北京航空航天大学学报, 2016, 42(2): 280-286. doi: 10.13700/j.bh.1001-5965.2015.0089
引用本文: 于晖, 杨嘉陵, 刘华等 . 基于有限元方法的蜘蛛网阻拦猎物过程模拟[J]. 北京航空航天大学学报, 2016, 42(2): 280-286. doi: 10.13700/j.bh.1001-5965.2015.0089
YU Hui, YANG Jialing, LIU Huaet al. Simulation of prey stopping process by spider webs based on finite element method[J]. Journal of Beijing University of Aeronautics and Astronautics, 2016, 42(2): 280-286. doi: 10.13700/j.bh.1001-5965.2015.0089(in Chinese)
Citation: YU Hui, YANG Jialing, LIU Huaet al. Simulation of prey stopping process by spider webs based on finite element method[J]. Journal of Beijing University of Aeronautics and Astronautics, 2016, 42(2): 280-286. doi: 10.13700/j.bh.1001-5965.2015.0089(in Chinese)

基于有限元方法的蜘蛛网阻拦猎物过程模拟

doi: 10.13700/j.bh.1001-5965.2015.0089
基金项目: 国家自然科学基金(11032001)
详细信息
    作者简介:

    于晖 男,博士研究生。主要研究方向:仿生原理在冲击动力学中的应用。Tel.:010-82317507 E-mail:yuhui@buaa.edu.cn;杨嘉陵 男,博士,教授,博士生导师。主要研究方向:冲击动力学与飞行器耐撞性。Tel.:010-82317507 E-mail:jlyang@buaa.edu.cn;刘华 女,博士,教授。主要研究方向:冲击动力学。Tel.:010-82317507 E-mail:liuhuarui@buaa.edu.cn

    通讯作者:

    刘华,Tel.:010-82317507 E-mail:liuhuarui@buaa.edu.cn

  • 中图分类号: O347.1

Simulation of prey stopping process by spider webs based on finite element method

  • 摘要: 为揭示蜘蛛网阻拦猎物过程的内在力学规律,基于理论和有限元方法对这一过程进行了研究。首先,根据已有实验结果建立了蜘蛛网径线和周线的应力-应变关系。然后,给出了单根丝线受横向冲击问题的理论解,并利用LS-DYNA有限元软件对该问题进行了数值模拟,有限元数值解与理论解一致。最后,利用LS-DYNA有限元软件模拟了蜘蛛网阻拦猎物的过程,得到的网内最大应变值和能量曲线与已有实验结果一致。计算结果表明,在蜘蛛网对猎物动能的耗散中,径线占主导地位;与冲击位置相邻的径线应力水平很低,有利于蜘蛛网的修复,径线中点附近的区域最有利于较大初始动能猎物的阻拦。

     

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出版历程
  • 收稿日期:  2015-02-10
  • 刊出日期:  2016-02-20

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