一种异型机织结构的参数化建模方法、优化方法及装置

By optimizing the connection scheme of three-dimensional woven irregular structures through digital coding and virtual fiber technology, the problem of insufficient yarn interlacing design was solved, the design efficiency and accuracy were improved, and the optimized prediction of mechanical properties was achieved.

CN121960066BActive Publication Date: 2026-07-17NANJING FIBERGLASS RES & DESIGN INST CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
NANJING FIBERGLASS RES & DESIGN INST CO LTD
Filing Date
2026-03-31
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

In the design of irregular structures of three-dimensional woven composite materials, the existing technology has insufficient design of the yarn interlacing method in the local connection area, which leads to severe stress concentration and affects the overall mechanical properties. In addition, CT scanning technology is complex and has low accuracy, and cannot predict mechanical properties in advance.

Method used

Digital coding is used to represent the connection relationship of yarn endpoints. The yarn is discretized into virtual fibers through parametric modeling to eliminate contact and interference of shape contour. The connection scheme is optimized by combining simulation model and mechanical performance index is calculated.

Benefits of technology

It improves the efficiency and accuracy of irregular structure design, shortens the R&D cycle, reduces trial and error costs, and can predict the optimal connection design scheme before the preparation of test pieces.

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Abstract

本发明实施例涉及复合材料结构建模技术领域,特别涉及一种异型机织结构的参数化建模方法、优化方法及装置。其中,该方法包括:将异型结构划分为均匀区域和连接区域;基于每种连接方案对应的数字化编码和均匀区域的仿真模型,得到每种连接方案对应的连接区域的仿真模型;基于均匀区域和每种连接区域的仿真模型,将每种连接方案对应的异型结构中的每根纱线离散为多根虚拟纤维,通过移动虚拟纤维的位置消除每两根虚拟纤维之间的接触以及每根虚拟纤维与异型结构的外形轮廓之间的接触,得到异型结构的纤维几何模型。本发明的技术方案能够实现三维机织异型结构的参数化建模,提升三维机织异型结构的设计效率与精度。
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