冬季运动智能柔性人台关键技术开发  

Key technology development of intelligent and flexible mannequin for winter sports

作　　者：何崟 邓凌 林美霞 李倩倩 肖爽 刘皓[1,2] 刘莉[3] HE Yin;DENG Ling;LIN Meixia;LI Qianqian;XIAO Shuang;LIU Hao;LIU Li(School of Textile Science and Engineering,Tiangong University,Tianjin 300387,China;Institute of Smart Wearable Electronic Textiles,Tiangong University,Tianjin 300387,China;School of Fashion,Beijing Institute of Fashion Technology,Beijing 100029,China)

机构地区：[1]天津工业大学纺织科学与工程学院,天津300387 [2]天津工业大学智能可穿戴电子纺织品研究所,天津300387 [3]北京服装学院服装艺术与工程学院,北京100029

出　　处：《纺织学报》2024年第2期221-230,共10页Journal of Textile Research

基　　金：国家重点研发计划“科技冬奥”重点专项(2019YFF0302105);国家自然科学基金项目(52203276);中国博士后基金项目(2021M691699)。

摘　　要：为精确获得运动姿态下服装对运动员整体和局部关键部位的减阻效果,基于运动员冬季运动动态姿势的三维人体数据,合理构建人台硬质内壳与柔性皮肤层的结构,并结合空气动力学等方法设计薄膜压电传感器的置入点位,为人台搭建完整的传感系统,开发了一款冬季运动智能柔性人台,并对该柔性人台进行了实际的风洞测试。结果表明,该人台可实现多点压力信号实时同步采集,不仅可得到人体局部关键部位的具体阻力数据,还可模拟测试速滑运动员在运动情况下穿着不同材料或不同结构设计的竞赛服装的减阻效果,测试竞赛服装不同部位的减阻情况。智能人台发挥了柔性传感器在服装减阻结构设计中的应用价值,使服装减阻测试更为简单和精确。Objective The development of winter speed competitive sports apparel requires accurate measurement of the drag force on different parts of the apparel during the movement.In the traditional drag-reducing apparel testing session,a rigid mannequin is usually used to wear the apparel for wind tunnel air resistance testing.The combination of a flexible mannequin that simulates the mechanical properties of human skin and thin-film piezoelectric sensors can be used to obtain the drag reduction effect of the garment on the overall and localized critical parts of the athlete during the sports posture.Method Based on the three-dimensional human body data of athletes'dynamic posture in winter sports,the mannequin model was constructed by using reverse engineering software,the structure of rigid inner shell and flexible skin layer of the platform was set up,and the model of the platform was divided into five parts for the convenience of putting on and taking off of the garment,and the placement points of thin-film piezoelectric sensors were designed by combining with the methods of aerodynamic dynamics,so as to build up the complete sensing system for the platform,and develop an intelligent and flexible mannequin for winter sports.Results Comparative tests were carried out on the flexible mannequin in a wind tunnel with three different angles.The overall pressures measured for the rigid mannequin and the flexible mannequin under the same wind speeds indicated differences in the test results between the two mannequins.The flexible mannequin exhibited significantly lower pressure values at each point when the mannequins were clad,highlighting its noticeable drag reduction effect on the human body when wearing speed skating apparel.When three different sets of speed skating apparel were tested under the same wind speed conditions,the pressure values at the same location were close between speed skating apparels 1 and 2,despite their different sizes.This suggested that the mannequin was able distinguish between different degree

关 键 词：柔性人台 柔性传感器 服装减阻 速滑服 冬季运动 

分 类 号：TS941[轻工技术与工程—服装设计与工程] TP212.9[自动化与计算机技术—检测技术与自动化装置]