接触状态下男上装基础版型对人体压力分布的有限元模型
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摘要
为对男上装基础版型与人体接触状态下的压力分布进行仿真与分析,采用三维人体测量技术获取人体和服装的点云数据,通过逆向工程软件建立人体与服装的几何模型,运用有限元软件进行有限元网格划分,建立人体与服装在接触状态下的有限元模型并进行仿真计算。由仿真结果得出基础版型与人体之间的压力及位移的分布状况:肩部中点的压力值为2.012～4.134 kPa,胸点与背部点压力值为0～1.101 kPa,肩颈点与肩点压力值为0～2.012 kPa;而实测肩部中点压力值为3.14～3.20 kPa,胸点压力值为0.73～0.81 kPa,肩颈点压力值为0.54～0.61 kPa,肩点压力值为1.19～1.23 kPa,背部点压力值为0.61～0.75 kPa;经对比实验验证所建立的有限元模型是合理且有效的。
The finite element model was established to digitally evaluate the pressure when wearing men′s basic pattern. The 3-D body measuring technology was adopted to acquire the point cloud data of men′s basic pattern and the upper body. The assembly model of human body and man′s basic pattern was established by reverse engineering software. Mesh generation, contact mechanics model of human body and basic pattern, and simulation calculation were in the finite element software. The simulation results show that the distribution of pressure and displacement between the base pattern and human body is obtained. And analyzing the pressure distribution can make conclusions that pressure value of middle shoulder is 2.102-4.134 kPa, pressure values of breast and back are 0-1.101 kPa, and pressure values of shoulder and neck point and shoulder point are 0-2.012 kPa. By pressure test, pressure value of middle shoulder is 3.14-3.20 kPa, pressure value of breast is 0.73-0.81 kPa, pressure value of shoulder and neck point is 0.54-0.61 kPa, pressure value of shoulder is 1.19-1.23 kPa, pressure value of back is 0.61-0.75 kPa. This illustrates that the model is available, and the result is correct and effective.
The finite element model was established to digitally evaluate the pressure when wearing men′s basic pattern. The 3-D body measuring technology was adopted to acquire the point cloud data of men′s basic pattern and the upper body. The assembly model of human body and man′s basic pattern was established by reverse engineering software. Mesh generation, contact mechanics model of human body and basic pattern, and simulation calculation were in the finite element software. The simulation results show that the distribution of pressure and displacement between the base pattern and human body is obtained. And analyzing the pressure distribution can make conclusions that pressure value of middle shoulder is 2.102-4.134 kPa, pressure values of breast and back are 0-1.101 kPa, and pressure values of shoulder and neck point and shoulder point are 0-2.012 kPa. By pressure test, pressure value of middle shoulder is 3.14-3.20 kPa, pressure value of breast is 0.73-0.81 kPa, pressure value of shoulder and neck point is 0.54-0.61 kPa, pressure value of shoulder is 1.19-1.23 kPa, pressure value of back is 0.61-0.75 kPa. This illustrates that the model is available, and the result is correct and effective.
引文
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[2] 许已超, 丁永生. 服装合体性评价的研究方法与应用[J]. 纺织学报, 2007, 28(10): 127-130.XU Yichao, DING Yongsheng. Research and application of garment fit assessments[J]. Journal of Textile Research, 2007, 28(10): 127-130.
[3] 齐行祥, 张文斌. 基于个性化虚拟人台的服装合体性评价模型研究[D]. 上海:东华大学, 2011: 9.QI Xingxiang, ZHANG Wenbin. Research on evaluation model of clothes fit based on individual virtual manne-quin[D]. Shanghai: Donghua University, 2011: 9.
[4] 戴玮, 张源渭. 服装衣身合体性评价中的模糊数学方法[J]. 东华大学学报, 2003, 29(3): 33-35.DAI Wei, ZHANG Weiyuan. Fuzzy mathematics methodology on clothing fitness evaluation[J]. Journal of Donghua University, 2003, 29(3): 33-35.
[5] 徐正艳, 宋晓霞. 人体与服装压力关系的研究进展[J]. 上海工程技术大学学报, 2013, 27(2): 170-173.XU Zhengyan, SONG Xiaoxia. Research progress in relationship between human body and clothing pressure[J]. Journal of Shanghai University of Engineering Science, 2013, 27(2): 170-173.
[6] 陆璐. 文胸压力分布的数字化模拟研究[D]. 西安:西安工程大学, 2013: 2.LU Lu. Study on digital simulation of bra′s pressure distribution[D]. Xi′an: Xi′an Polytechnic University, 2013: 2.
[7] 成思源, 吴问霆, 杨雪荣. 基于Geomagic Studio的快速曲面重建[J]. 现代制造工程, 2011(1): 8-12.CHENG Siyuan, WU Wenting, YANG Xuerong. Rapid surface reconstruction based on Geomagic Studio software[J]. Modern Manufacturing Engineering, 2011(1): 8-12.
[8] 胡影峰. Geomagic Studio软件在逆向工程后处理的应用[J]. 制造业自动化, 2009, 31(9): 135-137.HU Yingfeng. The application of Geomagic Studio software in reverse engineering post processing[J]. Manufacturing Automation, 2009, 31(9): 135-137.
[9] 张荣. 四面体与六面体网格特征比较[J]. 企业技术开发, 2012, 8(31): 101-102.ZHANG Rong. Comparison of tetrahedral and hexahedral mesh features[J]. Technological Development of Enterprise, 2012, 8(31): 101-102.
[10] 姬伟, 李俊乐, 杨俊, 等. 机械手采摘中苹果抓取有限元分析损伤研究[C]// 高万林. 2014年农业电气化与信息化工程与学科创新发展学术年会会议. 兰州:甘肃农业大学, 2014: 430-435.JI Wei, LI Junle, YANG Jun, et al. Research on mechanical damage of apple in robot harvesting using finite element analysis[C]// GAO Wanlin. 2014 Annual conference on electrification and information engineering and discipline innovation and development. Lanzhou: Gansu Agricultural University, 2014: 430-435.
[11] 杨森. 基于特征的四边形网格生成[D]. 大连:大连理工大学, 2006:6.YANG Sen. Quadrilateral mesh generation based on features[D]. Dalian: Dalian University of Technology, 2006: 6.
[12] 应世洲, 张建, 王国林, 等. 网格密度对全钢载重子午线轮胎有限元分析的影响[J]. 轮胎工业, 2008, 28(10): 579-582.YING Shizhou, ZHANG Jian, WANG Guolin, et al. Effects of mesh density on finite element analysis for TBR tire[J]. Tire Industry, 2008, 28(10): 579-582.
[13] 王欣. 有限元人体模型的分析与应用[J]. 客车技术与研究, 2006, 28(2): 30-33.WANG Xin. Analysis and application of human-body finite element model[J]. Bus Technology and Research, 2006, 28(2): 30-33.