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基于能量誤差的人體有限元模型網(wǎng)格剖分優(yōu)化研究

魏宏安,  吳小清,  張昂

魏宏安, 吳小清, 張昂. 基于能量誤差的人體有限元模型網(wǎng)格剖分優(yōu)化研究[J]. 電子與信息學(xué)報, 2020, 42(11): 2615-2620. doi: 10.11999/JEIT190765
引用本文: 魏宏安, 吳小清, 張昂. 基于能量誤差的人體有限元模型網(wǎng)格剖分優(yōu)化研究[J]. 電子與信息學(xué)報, 2020, 42(11): 2615-2620. doi: 10.11999/JEIT190765
Hong’an WEI, Xiaoqing WU, Ang ZHANG. Research on Mesh Generation Optimization of Finite Element Model of Human Body Based on Energy Error[J]. Journal of Electronics & Information Technology, 2020, 42(11): 2615-2620. doi: 10.11999/JEIT190765
Citation: Hong’an WEI, Xiaoqing WU, Ang ZHANG. Research on Mesh Generation Optimization of Finite Element Model of Human Body Based on Energy Error[J]. Journal of Electronics & Information Technology, 2020, 42(11): 2615-2620. doi: 10.11999/JEIT190765

基于能量誤差的人體有限元模型網(wǎng)格剖分優(yōu)化研究

doi: 10.11999/JEIT190765 cstr: 32379.14.JEIT190765
  • 1.

    福州大學(xué)物理與信息工程學(xué)院　福州　350116

  • 2.

    福建省媒體信息智能處理與無線傳輸重點(diǎn)實驗室　福州　350116

詳細(xì)信息
    作者簡介:

    魏宏安：男，1978年生，高級實驗師，研究方向為通信與信息系統(tǒng)

    吳小清：女，1994年生，碩士生，研究方向為電子與通信工程

    張昂：男，1984年生，實驗師，研究方向為電子與通信工程

    通訊作者:

    張昂　2774977803@qq.com

  • 中圖分類號: TM154

Research on Mesh Generation Optimization of Finite Element Model of Human Body Based on Energy Error

  • 1.

    College of Physics and Information Engineering, Fuzhou University, Fuzhou 350116, China

  • 2.

    Key Laboratory of Media Intelligence and Communication, Fujian Province, Fuzhou 350116, China

  • 摘要: 網(wǎng)格剖分是有限元建模分析過程中最重要，也是工作量最大的環(huán)節(jié)，直接影響有限元分析的精度和時間。該文在研究網(wǎng)格自適應(yīng)剖分及有限元離散誤差的基礎(chǔ)上，在高壓輸電場環(huán)境中建立不同復(fù)雜度的3維人體模型。通過對人體模型自適應(yīng)網(wǎng)格剖分和手動網(wǎng)格剖分電場仿真結(jié)果的對比，分析能量誤差變化的趨勢，從而指導(dǎo)人體模型的建立及最佳剖分尺寸的設(shè)置。該文的研究成果，對其它有限元剖分方案的優(yōu)化研究具有一定參考意義。
    Abstract: Meshing is the most important part of the finite element modeling and analysis process, and it also has the largest workload, which directly affects the accuracy and time of the finite element analysis. Based on the research of adaptive meshing and finite element discrete errors, three-dimensional human body models of different complexity are established in the environment of high-voltage power transmission fields. By comparing the results of the electric field simulation between the adaptive meshing of the human body model and the manual meshing, the trend of energy error changes is analyzed, so as to guide the establishment of the human body model and the setting of the optimal mesh size.The research results have certain reference significance to the optimization research of other finite element splitting schemes.
    • HTML全文

  • 圖  1  自適應(yīng)網(wǎng)絡(luò)剖分流程

    圖  2  三相輸電線路布局圖

    圖  3  無人情況下空間中電位仿真結(jié)果分布圖

    圖  4  簡化3D人體模型

    圖  5  有人情況下空間電場強(qiáng)度仿真結(jié)果分布圖

    圖  6  不同人體模型的能量誤差的變化

    圖  7  3種人體模型的不同網(wǎng)格單元大小的能量誤差的變化

    表  1  人體模型尺寸(m)

    人體模型I人體模型II人體模型III
    腳身體脖子頭腳身體手臂脖子頭
    半徑0.280.190.240.100.170.050.120.030.040.20
    高度1.710.700.650.08無0.800.700.750.08無
    下載: 導(dǎo)出CSV

    表  2  不同人體模型的方差和自適應(yīng)網(wǎng)格剖分能量誤差

    人體模型類型人體模型I人體模型II人體模型III
    能量誤差(%)21.073522.424426.8348
    方差(m2)00.0360.050
    下載: 導(dǎo)出CSV

    表  3  網(wǎng)格尺寸0.2 m和0.5 m的模型網(wǎng)格數(shù)變化

    人體模型I人體模型II人體模型III
    全局網(wǎng)格數(shù)網(wǎng)格尺寸0.2 m281086282154285858
    網(wǎng)格尺寸0.5 m277204280179283806
    網(wǎng)格數(shù)差全局網(wǎng)格數(shù)差388219752052
    人體網(wǎng)格數(shù)網(wǎng)格尺寸0.2 m264627694987
    網(wǎng)格尺寸0.5 m56615793615
    網(wǎng)格數(shù)差人體網(wǎng)格數(shù)差208011901372
    下載: 導(dǎo)出CSV
  • 沈丹丹, 胡萬曉, 茍進(jìn)勝. 木托盤有限元分析精度的影響因素[J]. 包裝工程, 2018, 39(17): 12–18. doi: 10.19554/j.cnki.1001-3563.2018.17.003

    SHEN Dandan, HU Wanxiao, and GOU Jinsheng. Factors affecting the precision of finite element analysis of wooden pallet[J]. Packaging Engineering, 2018, 39(17): 12–18. doi: 10.19554/j.cnki.1001-3563.2018.17.003
    葉志紅, 周海京, 劉強(qiáng). 屏蔽腔內(nèi)任意高度線纜端接TVS管電路的電磁耦合時域分析[J]. 電子與信息學(xué)報, 2018, 40(4): 1007–1011. doi: 10.11999/JEIT170615

    YE Zhihong, ZHOU Haijing, and LIU Qiang. Time domain coupling analysis for the arbitrary height cable terminated with TVS circuit in shield cavity[J]. Journal of Electronics &Information Technology, 2018, 40(4): 1007–1011. doi: 10.11999/JEIT170615
    JIN Gefei, WEI Hai, CHEN Danlei, et al. Finite element meshing of complex tailings dam based on Hypermesh software[J]. China Water Transport (The Second Half) , 2019, 19(8): 96–97.
    王世杰, 常延貞. 一類拋物最優(yōu)控制問題的有限元誤差估計[J]. 北京化工大學(xué)學(xué)報: 自然科學(xué)版, 2018, 45(6): 106–110. doi: 10.13543/j.bhxbzr.2018.06.017

    WANG Shijie and CHANG Yanzhen. Error estimates of the finite element method for a class of parabolic optimal control problems[J]. Journal of Beijing University of Chemical Technology:Natural Science Edition, 2018, 45(6): 106–110. doi: 10.13543/j.bhxbzr.2018.06.017
    TURCKE D J and MCNEICE G M. Guidelines for selecting finite element grids based on an optimization study[J]. Computers & Structures, 1974, 4(3): 499–519.
    BABU?KA I and RHEINBOLDT W C. A-Posteriori error estimates for the finite element method[J]. International Journal for Numerical Methods in Engineering, 1978, 12(10): 1597–1615. doi: 10.1002/nme.1620121010
    ZIENKIEWICZ O C and ZHU J Z. The superconvergent patch recovery and a posteriori error estimates. Part 1: The recovery technique[J]. International Journal for Numerical Methods in Engineering, 1992, 33(7): 1331–1364. doi: 10.1002/nme.1620330702
    AINSWORTH M, ZHU J Z, CRAIG A W, et al. Analysis of the Zienkiewicz-Zhu a-posteriori error estimator in the finite element method[J]. International Journal for Numerical Methods in Engineering, 1989, 28(9): 2161–2174. doi: 10.1002/nme.1620280912
    FENG Kang. Finite element method[J]. Mathematics in Practice and Theory, 1974(4): 54–61.
    LI Xiangrong, ZHANG Weiwei, and NIE Yufeng. Superconvergence analysis of adaptive finite element method based on the bubble-type mesh generation[J]. Applied Mathematics Letters, 2019, 98: 322–328. doi: 10.1016/j.aml.2019.06.034
    朱月風(fēng), 張洪亮, 張乘源, 等. 簡化擴(kuò)展有限元法精度的驗證及在DCT試驗中的應(yīng)用[J]. 武漢大學(xué)學(xué)報: 工學(xué)版, 2019, 52(3): 216–222. doi: 10.14188/j.1671-8844.2019-03-005

    ZHU Yuefeng, ZHANG Hongliang, ZHANG Chengyuan, et al. Accuracy verification of simplified XFEM and its application to DCT test[J]. Engineering Journal of Wuhan University, 2019, 52(3): 216–222. doi: 10.14188/j.1671-8844.2019-03-005
    蘇志敏, 閆毅志, 董衛(wèi), 等. 特高拱壩有限元網(wǎng)格尺寸與離散誤差分析[C]. 第九屆南方計算力學(xué)學(xué)術(shù)交流會, 合肥, 2013: 246–250. doi: 10.19636/j.cnki.cjsm42-1250/o3.2014.s1.042.

    SU Zhimin, YAN Yizhi, DONG Wei, et al. Analysis on finite element mesh size and discretization error for super-high arch dam[C]. The 9th South Computational Mechanics Academic Exchange Conference, Hefei, China, 2013: 246–250. doi: 10.19636/j.cnki.cjsm42-1250/o3.2014.s1.042.
    劉建濤, 杜平安, 黃明鏡, 等. 曲面薄殼有限元離散誤差分析和修正方法研究[J]. 系統(tǒng)仿真學(xué)報, 2010, 22(10): 2281–2286. doi: 10.16182/j.cnki.joss.2010.10.006

    LIU Jiantao, DU Ping’an, HUANG Mingjing, et al. Discrete error analysis and correction method of finite element for curved thin-walled structures[J]. Journal of System Simulation, 2010, 22(10): 2281–2286. doi: 10.16182/j.cnki.joss.2010.10.006
    宣楊, 王旭, 劉承安, 等. 不完全喬列斯基分解共軛梯度法在磁感應(yīng)成像三維有限元正問題中的應(yīng)用[J]. 電子與信息學(xué)報, 2016, 38(1): 187–194. doi: 10.11999/JEIT150437

    XUAN Yang, WANG Xu, LIU Cheng’an, et al. Incomplete Cholesky conjugate gradient method for the three-dimensional forward problem in magnetic induction tomography using finite element method[J]. Journal of Electronics &Information Technology, 2016, 38(1): 187–194. doi: 10.11999/JEIT150437
    魏宏安, 吳小清. 基于Maxwell有限元分析的高壓輸電線路安全距離研究[J]. 電氣開關(guān), 2018, 56(5): 86–90. doi: 10.3969/j.issn.1004-289X.2018.05.020

    WEI Hong’an and WU Xiaoqing. Research on safety distance of high voltage transmission lines based on Maxwell’s finite element analysis[J]. Electric Switcher, 2018, 56(5): 86–90. doi: 10.3969/j.issn.1004-289X.2018.05.020
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  • 收稿日期:  2019-10-08
  • 修回日期:  2020-06-10
  • 網(wǎng)絡(luò)出版日期:  2020-07-15
  • 刊出日期:  2020-11-16

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