摘要
文章选用黏胶织物,根据织物结构的特殊节点,利用数值分析中的牛顿插值方法对纱线的中心线进行曲线拟合,再采用专业软件建立并分析织物的三维模型,对相关参数进行初始化设置,在有限元软件ABAQUS模拟织物传热过程,继而通过实验对模拟结果进行验证,最后模拟预测空气层厚度及织物厚度对织物传热性能的影响。结果表明:织物模型模拟结果与实验结果误差为8.12%,拟合程度较高,证明了模型及有限元方法的有效性及可行性;在相同条件下,随着空气层厚度的增加,织物外表面的温度越来越低,且下降梯度也越来越低。在相同条件下,随着纱线线密度的增加,织物厚度逐渐增大,织物传递热量逐渐减少,克罗值逐渐增大。
In this paper,viscose fabric was chosen to extract characteristic points of cross section,and the geometric model of the fabric was established by fitting the yarn center line based on the interpolation formula and modeling software.Relevant parameters were initialized.The heat transfer process of the fabric was simulated in the finite element software ABAQUS.Then the simulation results were verified by experiments.Finally,the effects of air layer thickness and yarn thickness on fabric’s heat transfer performance were simulated and predicted.The results show that the error between the simulation results and the experimental results is 8.12%and the fitting degree is high,which proves the effectiveness and feasibility of the model and the finite element method.Under the same conditions,with the increase of the air layer thickness,the outer surface temperature of the fabric increasingly decreases,and the decreasing gradient becomes lower and lower.Under the same conditions,with the increase of yarn density,the fabric thickness gradually increases,the heat transfer of the fabric decreases gradually and the Clo value increases gradually.
作者
张洁
刘新金
张娣
谢春萍
苏旭中
ZHANG Jie;LIU Xinjin;ZHANG Di;XIE Chunping;SU Xuzhong(Key Laboratory of Eco-Textiles,Ministry of Education,Jiangnan University,Wuxi 214122,China;Wuxi Jinmao Foreign Trade Co.,Ltd.,Wuxi 214122,China)
出处
《丝绸》
CAS
CSCD
北大核心
2020年第7期25-30,共6页
Journal of Silk
基金
国家重点研发计划项目(2017YFB0309200)
江苏省自然科学基金项目(BK20170169)
江苏省先进纺织工程技术中心基金项目(XJFZ/2018/09)
纺织服装产业河南省协同创新中心项目(hnfz14002)。
关键词
平纹织物
有限元分析
传热性能
空气层厚度
数值模拟
plain fabric
finite element analysis
heat transfer performance
air layer thickness
numerical simulation
