基于ANSYS/APDL的织物导热性能影响因素  

Factors influencing the thermal properties of fabrics based on ANSYS/APDL

作　　者：戚鑫涛 何浩男 李欣[1] 金肖克[1] 马雷雷[1] 田伟[1] 祝成炎[1,2] QI Xintao;HE Haonan;LI Xin;JIN Xiaoke;MA Leiei;TIAN Wei;ZHU Chengyan(College of Textile Science and Engineering(International Institute of Silk),Zhejiang Sci-Tech University,Hangzhou 310018,China;Zhejiang Sci-Tech University Huzhou Research Institute Co.,Ltd.,Huzhou 313000,China)

机构地区：[1]浙江理工大学纺织科学与工程学院(国际丝绸学院),杭州310018 [2]浙江理工大学湖州研究院有限公司,浙江湖州313000

出　　处：《现代纺织技术》2024年第10期102-113,共12页Advanced Textile Technology

基　　金：浙江省基础公益研究计划项目(LGC21E030002)。

摘　　要：为研究织物导热性能的影响因素,提出了一种基于ANSYS的织物热传递有限元仿真二次开发系统。利用ANSYS/APDL软件对织物进行参数化建模,模拟分析在不同织物组织、织物紧度、经纬纱线材料条件下,织物中的热量传递过程及温度分布特征,并计算各织物的导热系数和蓄热系数。使用C-THERM TCi导热仪对织物样本的导热系数和蓄热系数进行测试,与模拟计算结果对比,发现模拟同实验测试结果的绝对误差值在4%以内,验证了该模型的有效性,并进一步探究了织物导热性能的影响因素。结果表明:在相同条件下,平纹织物的蓄热系数和导热系数最高,斜纹次之,缎纹最低;随着织物紧度的增加,织物的导热系数和蓄热系数也升高;随着纱线导热系数的上升,织物的导热系数和蓄热系数升高。研究结果对织物导热性能的参数化模拟仿真及良好导热性能的织物开发具有重要意义。With the growing demand for thermal comfort in textiles there has been a heightened research focus on fabrics with excellent thermal properties.During hot summers fabrics with excellent thermal properties can efficiently transfer the body's heat to the external environment offering a comfortable and cool wearing experience.The thermal properties of fabrics are influenced by factors such as fabric structure fabric tightness yarn thermal conductivity fiber content and fabric post-processing.Studying these influential factors is important for the development of fabrics with excellent thermal properties.Traditionally developing fabrics with good thermal properties involved weaving numerous fabric samples and conducting a series of physical tests to analyze the product's thermal properties which was time-consuming and wasteful of raw materials.Compared to traditional experimental methods finite element analysis systems can quickly obtain indicators of fabric thermal properties such as thermal conductivity thermal resistance thermal effusivity and CLO value making fabric design more effective.In recent years scientists have utilized finite element software such as ANSYS and ABAQUS to simulate and predict the heat transfer performance of fabrics.This approach offers an effective means of evaluating and optimizing high-quality low-cost fabrics.However the CAE module simulation analysis environment has limitations that make it challenging to directly analyze fabric heat transfer performance and process data.Therefore this study aimed to develop a system for the finite element simulation of fabric heat transfer using the improved technology of ANSYS/APDL Firstly various fabric samples with different fabric structures yarn materials and warp and weft yarn combinations were woven.The parameters of the fabric structure were then measured by using microscopic imaging to create a parametric model.A three-dimensional finite element model of the"environment-fabric-skin"system was then created by using finite element software to s

关 键 词：有限元仿真 导热性能 参数化建模 导热系数 蓄热系数 

分 类 号：TS15[轻工技术与工程—纺织材料与纺织品设计]