三维四向编织复合材料结构的计算机仿真
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MA Ming1，ZHANG Chen-chen2，ZHANG Yi-fan1
（1. Key Laboratory for Advanced Textile Composites of Ministry of Education，Tiangong University，Tianjin 300387，China； 2. School of Computer Science and Technology，Tiangong University，Tianjin 300387，China）
关键词：三维编织；复合材料；椭圆形截面；纱线轨迹；织物结构仿真
中图分类号：TB332；TP391.99
文献标志码：A
文章编号：员远苑员原园圆源载（圆园19）园6原园园45原07
. All RighCtosmRpeutseerrsvimedul.ation of 3D four directional braided composites structure
（1. 天津工业大学 先进纺织复合材料教育部重点实验室，天津 300387；2. 天津工业大学 计算机科学与技术学院， 天津 300387）
摘 要：为了在分析三维编织复合材料的编织结构时，使三维编织预制体结构仿真分析更加接近真实的情况，以三
维四向编织复合材料为研究对象，假设编织纱线的截面为椭圆形，结合四步法编织原理和三维编织预制体
Abstract：In order to analyze the braided structure of three-dimensional 3D braided composites袁 and make the simulation analysis of 3D braided preforms closer to the real structure袁 3D four directional braided composites is taken as the research object袁 assuming that the cross-section of braided yarn is ellipse袁 combining the four-step braiding principle and the braiding parameters of 3D braided preform袁 the yarn movement is discussed袁 and the motion trajectory of the yarn is optimized by using cubic B -spline curve袁 which is realized by Matlab. The space coordinates of yarn trajectory calculated by Matlab and VS2010 are imported into SolidWorks to realize the simulation of 3D braided preform structure. The results show that when the yarn distance and the pitch length are constant袁 the long axis radius is kept constant袁 and the length of the short axis is closer to the length of the long axis袁 and the fiber volume fraction increases with the increase of the short axis length. When the yarn distance and the pitch length are constant and the major axis radius is less than half of the yarn spacing袁 the short axis radius is kept constant袁 and the fiber volume fraction increases as the long axis radius increases. When the length of the long and short axes of the yarn and the yarn distance are constant袁 the length of the braided preform increases as the pitch length increases. Through the above experiments袁 the visualization of the braided preform structure is realized袁 which is beneficial to the subsequent 3D braided structure research and mechanical property analysis.
长度，短轴的长度越接近长轴的长度，纤维的体积分数越大；当纱线间距与花节长度一定且长轴半径小于
纱线间距的 1/2 时，保持短轴半径不变，纤维体积分数随着长轴半径的增加而增加；当纱线的长短轴半径与
纱线间距一定时，编织预制体的长度随着花节长度的增加而增加。通过以上实验，实现了编织预制体结构
的可视化，有利于之后的三维编织结构研究及其力学性能分析。
第 38 卷 第 6 期 圆园19 年 12 月
天津工业大学学报 允韵哉砸晕粤蕴 韵云 栽陨粤晕GONG 哉晕陨灾耘砸杂陨栽再
DOI：10.3969/j.issn.1671-024x.2019.06.008
Vol.38 No.6 December 2019
三维四向编织复合材料结构的计算机仿真
马 明 1，张晨辰 2，张一帆 1
的编织参数，对纱线的运动规律进行讨论，同时利用三次 B 样条曲线优化纱线的运动轨迹，并通过 Matlab
模拟实现；将 Matlab 和 VS2010 计算出的纱线运动轨迹的空间坐标导入到三维建模软件 SolidWorks 中，进
行三维编织预制体结构的仿真。结果表明：当纱线间距与花节长度一定时，保持长轴半径不变，增加短轴的
（1. Key Laboratory for Advanced Textile Composites of Ministry of Education，Tiangong University，Tianjin 300387，China； 2. School of Computer Science and Technology，Tiangong University，Tianjin 300387，China）
关键词：三维编织；复合材料；椭圆形截面；纱线轨迹；织物结构仿真
中图分类号：TB332；TP391.99
文献标志码：A
文章编号：员远苑员原园圆源载（圆园19）园6原园园45原07
. All RighCtosmRpeutseerrsvimedul.ation of 3D four directional braided composites structure
（1. 天津工业大学 先进纺织复合材料教育部重点实验室，天津 300387；2. 天津工业大学 计算机科学与技术学院， 天津 300387）
摘 要：为了在分析三维编织复合材料的编织结构时，使三维编织预制体结构仿真分析更加接近真实的情况，以三
维四向编织复合材料为研究对象，假设编织纱线的截面为椭圆形，结合四步法编织原理和三维编织预制体
Abstract：In order to analyze the braided structure of three-dimensional 3D braided composites袁 and make the simulation analysis of 3D braided preforms closer to the real structure袁 3D four directional braided composites is taken as the research object袁 assuming that the cross-section of braided yarn is ellipse袁 combining the four-step braiding principle and the braiding parameters of 3D braided preform袁 the yarn movement is discussed袁 and the motion trajectory of the yarn is optimized by using cubic B -spline curve袁 which is realized by Matlab. The space coordinates of yarn trajectory calculated by Matlab and VS2010 are imported into SolidWorks to realize the simulation of 3D braided preform structure. The results show that when the yarn distance and the pitch length are constant袁 the long axis radius is kept constant袁 and the length of the short axis is closer to the length of the long axis袁 and the fiber volume fraction increases with the increase of the short axis length. When the yarn distance and the pitch length are constant and the major axis radius is less than half of the yarn spacing袁 the short axis radius is kept constant袁 and the fiber volume fraction increases as the long axis radius increases. When the length of the long and short axes of the yarn and the yarn distance are constant袁 the length of the braided preform increases as the pitch length increases. Through the above experiments袁 the visualization of the braided preform structure is realized袁 which is beneficial to the subsequent 3D braided structure research and mechanical property analysis.
长度，短轴的长度越接近长轴的长度，纤维的体积分数越大；当纱线间距与花节长度一定且长轴半径小于
纱线间距的 1/2 时，保持短轴半径不变，纤维体积分数随着长轴半径的增加而增加；当纱线的长短轴半径与
纱线间距一定时，编织预制体的长度随着花节长度的增加而增加。通过以上实验，实现了编织预制体结构
的可视化，有利于之后的三维编织结构研究及其力学性能分析。
第 38 卷 第 6 期 圆园19 年 12 月
天津工业大学学报 允韵哉砸晕粤蕴 韵云 栽陨粤晕GONG 哉晕陨灾耘砸杂陨栽再
DOI：10.3969/j.issn.1671-024x.2019.06.008
Vol.38 No.6 December 2019
三维四向编织复合材料结构的计算机仿真
马 明 1，张晨辰 2，张一帆 1
的编织参数，对纱线的运动规律进行讨论，同时利用三次 B 样条曲线优化纱线的运动轨迹，并通过 Matlab
模拟实现；将 Matlab 和 VS2010 计算出的纱线运动轨迹的空间坐标导入到三维建模软件 SolidWorks 中，进
行三维编织预制体结构的仿真。结果表明：当纱线间距与花节长度一定时，保持长轴半径不变，增加短轴的