摘要
为研究人体下肢各层组织在服装压作用下产生的形变和应力分布情况,利用16层螺旋CT仪及Mimics软件获取人体下肢分层三维模型,用ANSYS构建有限元模型预测服装压对皮肤层、其它软组织层和肌肉层产生的位移形变;在人体下肢选择44个压力采集部位,对实测服装压与预测服装压进行相关性分析。结果表明:在服装压作用下,人体下肢各层的形变主要分布在大腿内侧,形变分布最少区域为小腿前侧;皮肤层形变最大值为2.73×10^(-2)mm,其它软组织层形变最大值为5.19×10^(-4)mm,肌肉层形变最大值为7.30×10^(-5)mm;皮肤能抵消的最大形变值约为2.73×10^(-3)mm,低于这个值的形变量在皮肤层以外的地方无法测得;人体下肢各面所受到的应力分布与形变分布整体一致,由大到小依次为内侧、后侧、前侧、外侧;服装压预测数据和实测数据的多重相关系数拟合优度为1,二者之间具有极其明显的相关性,说明所建立的服装压预测分层模型可用来预测服装压对皮肤、其它软组织和肌肉的形变。
Objective In order to study the mechanism of interaction between clothing pressure and various layers of lower body tissues,including skin layer,other soft tissue layer and muscle layer,a finite element layered model was established using ANSYS to predict the deformation and stress distribution of each layer tissue under clothing pressure.Method Two-dimensional tomography images of human lower limbs was obtained by CT scanner,and a three-dimensional layered model of human lower limbs by Mimics was established and was imported into ANSYS to improve the model.Material properties of the model were defined,and boundary conditions were set to obtain finite element prediction models.In order to verify the accuracy of the model,44 collection points were selected in the lower limbs to collect the measured clothing pressure data,and SPSS were utilized to analyze the correlation between the predicted data and the measured data,useing multiple correlation coefficient R to measure the model fit degree.The closer the R value was to 1,the higher the accuracy of the model was proved.Results The least obvious part of the skin layer was found to be the medial front of the calf,the least obvious part of the other soft tissue layer was basically the same as the skin layer,and the least obvious part of the muscle layer was the medial front of the calf.The most obvious deformation part of the skin layer was basically the same as that of other soft tissue layers,which was on the upper part of the inner middle of the thigh.The maximum shape variations were 2.73×10^(-2)mm and 5.19×10^(-4)mm,respectively,with a difference of nearly two orders of magnitude.The muscle layer deformation mainly occurred in the inner thigh,front internal,back internal and back leg.The most obvious part of the deformation was in the middle of the inner thigh,with a maximum value of 7.30×10^(-5)mm.By comparing the skin layer with other soft tissue layers,it was found that in the area where the skin layer shape variation is less than 2.730×10^(-3)mm,the othe
作者
朱圆圆
覃蕊
金佳勤
雷彧腾
于淼
ZHU Yuanyuan;DAN Rui;JIN Jiaqin;LEI Yuteng;YU Miao(College of Textile and Clothing,Qingdao University,Qingdao,Shandong 266071,China)
出处
《纺织学报》
EI
CAS
CSCD
北大核心
2024年第3期148-155,共8页
Journal of Textile Research
基金
国家自然科学基金项目(52073151)
山东省自然科学基金项目(ZR2019PEE022)
中国纺织工业联合会科技指导性项目(2018078)
教育部产学合作协同育人项目(202101102013)。
关键词
服装压
下肢分层模型
服装压预测
形变位移
功能服装
ANSYS软件
clothing pressure
lower limb stratification model
clothing pressure prediction
deformation displacement
functional clothing
ANSYS software
