鹿角骨单位仿生薄壁管斜向冲击耐撞性研究

霍鹏 许述财 范晓文 李建平 杨欣 黄晗

霍鹏, 许述财, 范晓文, 李建平, 杨欣, 黄晗. 鹿角骨单位仿生薄壁管斜向冲击耐撞性研究[J]. 爆炸与冲击, 2020, 40(11): 113102. doi: 10.11883/bzycj-2020-0035
引用本文: 霍鹏, 许述财, 范晓文, 李建平, 杨欣, 黄晗. 鹿角骨单位仿生薄壁管斜向冲击耐撞性研究[J]. 爆炸与冲击, 2020, 40(11): 113102. doi: 10.11883/bzycj-2020-0035
HUO Peng, XU Shucai, FAN Xiaowen, LI Jianping, YANG Xin, HUANG Han. Oblique impact resistance of a bionic thin-walled tube based on antles osteon[J]. Explosion And Shock Waves, 2020, 40(11): 113102. doi: 10.11883/bzycj-2020-0035
Citation: HUO Peng, XU Shucai, FAN Xiaowen, LI Jianping, YANG Xin, HUANG Han. Oblique impact resistance of a bionic thin-walled tube based on antles osteon[J]. Explosion And Shock Waves, 2020, 40(11): 113102. doi: 10.11883/bzycj-2020-0035

鹿角骨单位仿生薄壁管斜向冲击耐撞性研究

doi: 10.11883/bzycj-2020-0035
基金项目: 国家自然科学基金(51305223);河北农业大学青年科学基金(2013QNR001);中国博士后科学基金(2018M641338);现代农业产业技术体系建设专项(CARS-27)
详细信息
    作者简介:

    霍 鹏(1995- ),男,硕士研究生,hp0319@mail.tsinghua.edu.cn

    通讯作者:

    李建平(1978- ),男,硕士,副教授,ljpnd327@126.com

  • 中图分类号: O389;U463.99

Oblique impact resistance of a bionic thin-walled tube based on antles osteon

  • 摘要: 为提高薄壁管结构的耐撞性和吸能性,基于鹿角骨单位结构特征,结合结构仿生学原理设计出内径相同、外径等梯度逐层递减的仿生薄壁管。采用有限元法对75种仿生薄壁管结构进行10°、20°、30°等3种斜向冲击角度的吸能特性模拟;通过多项式回归元模型和多目标粒子群优化算法进行优化,以Pareto前沿最优原则得到各目标最优化的配置方案;采用最小距离选择法进行优化分析,得到各配置方案的最优结构设计参数。结果表明:仅考虑单一冲击角度时,在10°、20°、30°冲击角度下的仿生薄壁管耐撞性最优的仿生层数n均为6,最大壁厚与厚度梯度值参数组合tmax-a分别为2.84 mm-0.38 mm、2.89 mm-0.29 mm、2.91 mm-0.34 mm;综合考虑多种冲击角度权重因数不同配置方案时,仿生薄壁管耐撞性最优的仿生层数n均为6,最大壁厚与厚度梯度值参数组合tmax-a分别为2.95 mm-0.28 mm、2.92 mm-0.30 mm、2.85 mm-0.33 mm。
  • 图  1  鹿角分层结构示意图

    Figure  1.  Hierarchical structures of antlers

    图  2  仿生薄壁管设计

    Figure  2.  Design of bionic tube

    图  3  仿生薄壁管在10 m/s轴向冲击下的变形模式

    Figure  3.  Deformation patterns of a bionic tube under the axial impact of 10 m/s

    图  4  在186 kg的落锤下落高度为10 m的轴向冲击载荷下仿生薄壁管的力-位移曲线和吸能量-位移曲线

    Figure  4.  Force-displacement and energy absorption-displacement curves of the bionic tube under the axial impact of a drop hammer of 186 kg droping from the heigh of 10 m

    图  5  10°冲击下的性能指标

    Figure  5.  Performance indexes under 10° impact

    图  6  20°冲击下的性能指标

    Figure  6.  Performance indexes under 20° impact

    图  7  30°冲击下的性能指标

    Figure  7.  Performance indexes under 30° impact

    图  8  20°冲击下的5层结构性能指标响应面

    Figure  8.  Response surfaces of performance indexes of five-storeyed structures under 20° impact

    图  9  优化方法流程图

    Figure  9.  Flowchart of the optimization method

    图  10  不同配置方案的Pareto前沿

    Figure  10.  Pareto frontiers for different design case

    表  1  试验组别

    Table  1.   Group of test factors

    因素组别
    123456789101112
    tmax/mm2.802.802.802.802.802.852.852.852.852.852.92.90
    a/mm0.200.250.300.350.400.200.250.300.350.400.200.25
    因素组别
    13141516171819202122232425
    tmax/mm2.902.902.902.952.952.952.952.953.003.003.003.003.00
    a/mm0.300.350.400.200.250.300.350.400.200.250.300.350.40
    下载: 导出CSV

    表  2  设计样本的拟合系数R2

    Table  2.   Fitting coefficient R2 of design samples

    性能指标层数
    456
    10°20°30°10°20°30°10°20°30°
    e0.993 80.995 30.989 90.989 10.995 20.993 50.993 30.991 20.983 3
    f0.993 20.994 70.996 00.992 00.993 40.991 40.991 20.993 10.995 2
    下载: 导出CSV

    表  3  不同设计方案的权重因数

    Table  3.   Weighting factors for different design cases

    配置方案w1w2w3
    100
    010
    001
    1/61/31/2
    1/31/31/3
    1/21/31/6
    下载: 导出CSV

    表  4  不同设计方案的最优结构设计参数

    Table  4.   Optimum structural design parameters in different design cases

    配置方案最优指标结构设计参数性能指标fiei组内排名
    ejwfjwtmax/mma/mmα/(°)ne/(kJ·kg−1)f/kN
    −0.8390.8042.840.3810436.5575.08 0.1513
    539.3176.64 0.0472
    638.5078.65−0.0641
    −0.8190.8292.890.2920432.0665.77 0.1312
    530.7260.39 0.2443
    631.9268.00−0.2161
    −0.8030.8462.910.3430422.0759.25 0.2662
    522.4158.58 0.4343
    621.8259.53−0.4471
    −0.8240.8162.950.2810440.7271.04 0.0103
    542.4974.11−0.0252
    642.4475.26 0.0244
    20432.4066.88 0.1385
    530.8060.95 0.2426
    632.0768.79−0.2131
    30422.5055.96 0.2167
    522.0457.16 0.4439
    622.9057.19 0.4238
    −0.8170.8262.920.3010446.0165.32−0.1762
    538.8764.35 0.0575
    638.4267.75−0.0604
    20431.4761.47 0.0906
    531.0063.17 0.2378
    636.1258.42−0.1203
    30423.1052.70 0.1617
    520.9848.75 0.4669
    624.7153.39−0.3811
    −0.8300.8482.850.3310437.8071.82 0.0835
    539.0575.32 0.0534
    639.8176.63−0.0363
    20431.6072.34 0.2247
    532.8162.38 0.1966
    630.2361.30−0.2552
    30420.0468.63 0.4299
    522.7960.95 0.4258
    621.1862.58−0.4621
    下载: 导出CSV
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出版历程
  • 收稿日期:  2020-02-14
  • 修回日期:  2020-08-14
  • 刊出日期:  2020-11-05

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