纺织学报 ›› 2022, Vol. 43 ›› Issue (04): 124-132.doi: 10.13475/j.fzxb.20210506109

• 服装工程 • 上一篇    下一篇

单层服装间隙量的动态有限元模型构建与仿真

余玉坤1, 孙玥1,2,3, 侯珏1,2,3, 刘正1,2,3(), 易洁伦4   

  1. 1.浙江理工大学 服装学院, 浙江 杭州 310018
    2.浙江省服装工程技术研究中心, 浙江 杭州 310018
    3.服装数字化技术浙江省工程实验室, 浙江 杭州 310018
    4.香港理工大学 纺织及服装学系, 香港 999077
  • 收稿日期:2021-05-24 修回日期:2022-01-07 出版日期:2022-04-15 发布日期:2022-04-20
  • 通讯作者: 刘正
  • 作者简介:余玉坤(1997— ),女,硕士生。主要研究方向为服装数字化技术。
  • 基金资助:
    丝绸文化传承与产品设计数字化技术文化和旅游部重点实验室资助项目(11310031252005)

Dynamic finite element modeling and simulation of single layer clothing ease allowance

YU Yukun1, SUN Yue1,2,3, HOU Jue1,2,3, LIU Zheng1,2,3(), YICK Kitlun4   

  1. 1. School of Fashion Design & Engineering, Zhejiang Sci-Tech University, Hangzhou, Zhejiang 310018, China
    2. Apparel Engineering Research Center of Zhejiang Province, Hangzhou, Zhejiang 310018, China
    3. Zhejiang Provincial Engineering Laboratory of Clothing Digital Technology, Hangzhou, Zhejiang 310018, China
    4. Institute of Textiles & Clothing, The Hong Kong Polytechnic University, Hong Kong 999077, China
  • Received:2021-05-24 Revised:2022-01-07 Published:2022-04-15 Online:2022-04-20
  • Contact: LIU Zheng

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摘要：

为探究运动状态下服装间隙量的变化情况,提出一种基于有限元软件构建的单层服装间隙量的动态仿真模型,模拟步行时的力学状态与间隙量。首先,基于三维点云数据构建人体与服装的不同组织结构形态的三维模型,利用Instron万能拉伸仪与三维动作捕捉系统获取服装材料参数与人体运动坐标,建立人体单层服装间隙量有限元模型,利用有限元仿真软件进行动态仿真模拟,最后将仿真模拟得到的间隙量与真实运动状态下的间隙量进行对比验证。结果表明:建立的有限元模型可精确描述服装动态间隙量变化,且模拟结果与实验结果的最小平均误差值为0.24 mm,最小相对均方根误差为1.81 mm;对同一运动周期6个时间段下2组数据进行相关性分析,仿真坐标值与真实坐标值在0.01水平(双尾)显著相关,证明了动态有限元仿真的准确性。

关键词: 服装间隙量, 有限元分析, 数值模拟, 三维建模, 动态仿真

Abstract:

In order to investigate the dynamic change of ease allowance of clothing during motion, a dynamic simulation model for single layer clothing ease allowance using finite element method was proposed, simulating the mechanical state and clothing ease allowance generation mechanism. Based on the three-dimensional (3-D) point cloud data, 3-D sub-models of human body and clothing were constructed. Instron universal extensometer and 3-D motion capture system were used to measure the physical properties of clothing and the coordinates of human trunk during dynamic motion, then a finite element model of a single layer clothing ease allowance was established. The finite element simulation software was used for dynamic simulation, finally, the ease allowance obtained by simulation is compared and verified with the ease allowance in real motion state. The results show that the minimum average difference between the simulation and experiment is 0.24 mm, and the minimum relative mean square error is 1.81 mm.The simulation coordinate value is significantly correlated with that in experiment at the level of 0.01 (two tails). It indicated that the simulation results can accurately predict the dynamic garment ease allowance around the chest during motion.

Key words: clothing ease allowance, finite element analysis, numerical simulation, three-dimensional modeling, dynamic simulation

中图分类号: 

  • K826.16

图1

人体-服装接触坐标系"

图2

人体-服装三维模型建模流程"

表1

有限元模型材料参数"

结构 材料属性 密度/
(kg·m-3)		 材料参数
C10/
kPa		 C01/
kPa		 C11/
kPa		 C20/
kPa		 C02/
kPa		 弹性模
量/kPa		 泊松比
乳房 Mooney-Rivlin 1.00×103 0.25 0.26 1.87 3.90 3.40 — —
外部软组织 各向同性 1.00×103 — — — — — 150.00 0.30
服装 各向同性 1.43×103 — — — — — 0.20 0.19

图3

三维动作捕捉仪测试示意图"

图4

人体与服装有限元模型"

表2

人体与服装接触类型表"

接触体名称 接触体类型 服装 乳房 外部软组织 躯干
服装 变形体 — T T —
乳房 变形体 T — G G
外部软组织 变形体 T G — G
躯干 刚体 — — — —

图5

有限元模拟中的边界条件"

图6

不同时间下着装状态的位移云图"

图7

不同时间时净体的位移云图"

图8

不同时间点间隙量仿真数值"

图9

人体胸围截面主要部位运动趋势验证"

图10

服装胸围截面主要部位运动趋势验证"

表3

间隙量相关性分析"

相关性系数 T1 T2 T3 T4 T5 T6
皮尔逊相关系数 0.830 0.706 0.722 0.733 0.411 0.828
显著性(双尾)系数 0.001 0.010 0.008 0.007 0.185 0.001
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