基于有限元仿真的不同胸型胸围截面压力位移变化研究  

Study on pressure displacement change of bust section of different bust sizes basedon finite element simulation

作　　者：刘宿慧 顾明月 潘怡婷 邹奉元[1,2,3] LIU Xiuhui;GU Mingyue;PAN Yiting;ZOU Fengyuan(School of Fashion Design&Engineering,Zhejiang Sci-Tech University,Hangzhou 310018,China;Key Laboratory of Silk Culture Heritage and Products Design Digital Technology,Ministry of Culture and Tourism,Zhejiang Sci-Tech University,Hangzhou 310018,China;Zhejiang Provincial Research Center of Clothing Engineering Technology,Zhejiang Sci-Tech University,Hangzhou 310018,China)

机构地区：[1]浙江理工大学服装学院,杭州310018 [2]浙江理工大学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,杭州310018 [3]浙江理工大学浙江省服装工程技术研究中心,杭州310018

出　　处：《丝绸》2023年第12期77-84,共8页Journal of Silk

基　　金：文化和旅游部重点实验室开放基金项目(2020WLB09);国家级大学生创新创业训练计划项目(202210338032)。

摘　　要：为探究不同胸型胸围截面的压力—位移变化,文章采用三维扫描仪获取136名女体躯干数据,提取重建坐标系下的乳房深与乳房宽比值,从而将胸型分为6类。建立相对应的有限元接触模型,模拟不同受压状态下6类胸型对应截面的受压与位移变化,构建了“(压力/位移)—角度”曲线及其函数关系。研究表明,外力作用下胸围截面BP点应力最大,其次是后侧位置,曲率较大且位置突出处应力较大。随着乳房形态逐渐变大,胸部及人体侧面软组织层变厚,体表形变增大且呈现外扩趋势,结果可为紧身服装压力舒适性研究提供参考。With the rapid advancement of apparel technology and the increasing demand for healthy life,people have higher requirements for the comfort of apparel.For it,pressure comfort is an important influence factor of clothing comfort.And the size of body surface displacement after the human body is pressurized is closely related to the pressure comfort.Therefore,it is of great significance to investigate the change rule of pressure and body surface displacement for the study of pressure comfort.However,due to the influence of the difference of bust type,the pressure state and morphology changes of each part of female body bust cross-section are different.Besides,different body types will show different patterns of change when they are subjected to external forces.Therefore,when exploring the change rule of body surface morphology,it is necessary to take the difference of bust type into account.We explored the pressure and displacement changes of the bust section of different bust types through the finite element simulation method.The study mainly includes three parts:i)Data acquisition and bust type classification:a 3D scanner was used to obtain 1363D point cloud data of female bodies with different bust types,and the reverse engineering software Geomagic was used to pre-process the 3D data and extract the breast parameters under the reconstructed coordinate system.In addition,there are six categories of bust shapes based on the ratio of breast depth to breast width.ii)Finite element modeling and simulation:the processed surface data of the bust section and the inner structural data were assembled to generate the geometric model of female bust section by different types.On this basis,the corresponding finite element contact model was established,and five kinds of uniform normal pressures were applied to it.It is used to simulate the stress and displacement of the corresponding cross section of six types of busts under different pressurized states.iii)Research on the change rule of pressure and displacement:according to

关 键 词：胸围截面 女体胸型 三维扫描 有限元仿真 压力—位移数值模拟 曲线拟合 

分 类 号：TS941.17[轻工技术与工程—服装设计与工程]