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图学学报 ›› 2025, Vol. 46 ›› Issue (5): 1061-1071.DOI: 10.11996/JG.j.2095-302X.2025051061

• 数字化设计与制造 • 上一篇    下一篇

基于运动学原理的复合材料编织成型工艺仿真技术研究

吴浩宇1(), 杨小超2, 王伟2,3(), 赵罡1,2,3   

  1. 1 北京航空航天大学航空发动机研究院北京 102206
    2 北京航空航天大学机械工程及自动化学院北京 102206
    3 虚拟现实技术与系统国家重点实验室北京 100191
  • 收稿日期:2024-11-11 接受日期:2025-03-19 出版日期:2025-10-30 发布日期:2025-09-10
  • 通讯作者:王伟(1978-),男,副教授,博士。主要研究方向为计算机辅助设计、计算机辅助工程等。E-mail:jrrt@buaa.edu.cn
  • 第一作者:吴浩宇(1999-),男,博士研究生。主要研究方向为计算机辅助设计、计算机辅助工程等。E-mail:buaawhy@buaa.edu.cn
  • 基金资助:
    国家自然科学基金(61972011)

Simulation technology for braiding process of composite materials based on kinematic principles

WU Haoyu1(), YANG Xiaochao2, WANG Wei2,3(), ZHAO Gang1,2,3   

  1. 1 Research Institute of Aero-Engine, Beihang University, Beijing 102206, China
    2 School of Mechanical Engineering and Automation, Beihang University, Beijing 102206, China
    3 State Key Laboratory of Virtual Reality Technology and Systems, Beijing 100191, China
  • Received:2024-11-11 Accepted:2025-03-19 Published:2025-10-30 Online:2025-09-10
  • First author:WU Haoyu (1999-), PhD candidate. His main research interests cover computer aided design, computer aided engineering, etc. E-mail:buaawhy@buaa.edu.cn
  • Supported by:
    National Natural Science Foundation of China(61972011)

摘要:

围绕编织机控制数据、纱线轨迹以及编织角的计算与预测设计的,提出一种编织复合材料成型过程的仿真算法,从2个相反的过程展开,逆向求解基于目标编织结构生成可靠的编织机控制数据,正向求解依据输入的编织机控制数据计算纱线轨迹,从而得到编织结构。首先将芯轴表面划分为一系列三角面片的集合并将其作为程序输入,提取芯轴中心线,依照运动学原理进行局部求解,由逆解算法生成设定编织角下的编织结构并得出相应编织速度,由正解算法计算特定编织速度以及编织机控制参数下的纱线轨迹和编织角分布情况。基于FreeCAD平台开发了BraidSim模块以实现编织工艺的动态仿真,支持对芯轴表面网格剖分、期望轨迹与编织速度生成与纱线沉积的动态仿真等功能。通过圆形变截面芯轴、方形变截面芯轴、航空发动机进气道芯轴以及空间曲线芯轴等典型编织案例进行仿真实验,仿真结果得到的编织速度与编织角分布基本符合预期,另外对变截面芯轴以及弯曲中心线芯轴进行了仿真并生成了相应的逆解编织机控制数据以及编织角分布情况,证实了该算法在复杂芯轴中的工程适用性。

关键词: 复材制造, 二维三轴织物, 虚拟仿真, FreeCAD, 软件设计

Abstract:

A simulation algorithm for the braiding process of composite materials is presented, specifically addressing the calculation and prediction of braiding machine control parameters, yarn trajectories, and braid angles. The algorithm operates through two complementary subprocesses: inverse solution generates machine control data based on target braid structures, while forward solution computes yarn trajectories and braid angle distributions using predefined control parameters. Initially, the surface of the mandrel is discretized into a set of triangular patches as program inputs. The mandrel centerline is extracted, and local solutions are performed according to kinematic principles. The inverse solution algorithm generates the braid structure of the preset braid angle and determines the corresponding take-up speed, while the forward solution algorithm calculates the yarn trajectories and braid angle distribution of specific take-up speed and control parameters. The BraidSim module, developed on the FreeCAD platform, integrates functionalities including mandrel surface meshing, trajectory generation, and dynamic yarn deposition simulation. The proposed algorithm has been validated through typical braiding cases including circular variable cross-section mandrel, square variable cross-section mandrel, aero-engine intake mandrel and spatial curve mandrel. Results demonstrate that the obtained take-up speed and braid angle distributions align closely with design expectations. Additional simulations are conducted for variable cross-section mandrel and curved centerline mandrel, generating corresponding inverse solution machine control data and forward solution braid angle distribution, demonstrating the applicability of the algorithm to complex mandrels.

Key words: composite material manufacturing, two-dimensional triaxial fabric, virtual simulation, FreeCAD, software design

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