玄武岩/聚酰亚胺三维间隔机织物的参数化建模及高温环境传热数值模拟  

Parametric modeling of basalt/polyimide three-dimensional spacer woven fabric and numerical simulation of heat transfer in high temperature environment

作　　者：李慧敏 刘淑强 杜琳琳 张曼 吴改红 LI Huimin;LIU Shuqiang;DU Linlin;ZHANG Man;WU Gaihong(College of Textile Engineering,Taiyuan University of Technology,Jinzhong,Shanxi 030600,China)

机构地区：[1]太原理工大学轻纺工程学院,山西晋中030600

出　　处：《纺织学报》2025年第1期87-94,共8页Journal of Textile Research

基　　金：山西省科技成果转化引导专项项目(202104021301053);山西省基础研究计划项目(20210302123114,202203021211146);山西省重点研发计划项目(202302040201009);山西省艺术科学规划课题(22BG082);山西省高等学校大学生创新创业训练计划项目(20220125);山西省研究生实践创新项目(2023SJ084)。

摘　　要：为突破实验条件的限制研究高温环境下三维间隔机织物的传热机制和传热过程,以玄武岩/聚酰亚胺三维间隔机织物为研究对象,对其三维间隔结构进行参数化建模,并确定控制方程以及边界条件。利用有限元分析方法对该织物进行高温环境下的传热过程数值模拟,通过实验对比验证模型有效性,探究了玄武岩/聚酰亚胺三维间隔机织物的间隔高度以及间隔跨距对其传热性能的影响。结果发现:相较于间隔跨距,间隔高度对三维间隔机织物传热性能的影响更大,传热平衡状态时织物背面域点探针温度相差11.4℃;且在三维间隔机织物内部,同一时刻下同一水平面上的间隔纱温度略低于空气域温度。Objective Two difficulties exist when studying the thermal protection performance of three-dimensional(3-D)spacer woven fabrics,which are the low repeatbility of the test results obtained from self-built platforms by themselves,and the high cost of samples in terms of forming process complexity,long lead time,and the production cost.In order to solve the above two problems,numerical simulation was carried out to save manpower and material resources,break through the limitations of experimental conditions,and reduce the error caused by human factors.Method Parametric modeling of basalt/polyimide 3-D spacer woven fabric was carried out,and then its heat transfer mechanism in high temperature environments was analyzed.The control equation and boundary conditions were determined,and finite element analysis software was utilized to numerically simulate the geometric model of 3-D spacer fabrics in high temperature environments,in order to predict the influence of spacer height and weft spacing on the heat transfer performance of basalt/polyimide 3-D spacer woven fabrics.Results From the heat transfer diagram of 3-D spacer woven fabrics with different weft spacing at an external ambient temperature of 150℃,it was evident that as the weft spacering was increased,the temperature on the back of the fabric gradually was found to decrease when the heat balance was reached.When the weft spacing increases from 5 to 23 mm,the temperature of the point probe on the back of the fabric demonstrated a decrease from 42.63℃to 42.40℃at the heat transfer equilibrium state.Inside the 3-D spacer woven fabric,the spacer yarn temperature on the same horizontal plane was slightly lower than the air domain temperature,with a difference of about 0.22℃.From the heat transfer numerical simulation diagram of different spacer heights,it was seen that as the spacer height increases,the temperature on the back of the 3-D spacer woven fabric showed a gradual decrease when the heat transfer reached equilibrium.When the spacer height was increa

关 键 词：三维间隔机织物 玄武岩纤维 聚酰亚胺纤维 高性能纤维 高温环境 传热 数值模拟 

分 类 号：TS105.1[轻工技术与工程—纺织工程]