Mr. Yizhe Chen Profile

Yizhe Chen

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Proceedings Article | 11 October 2023 Paper

Structural modelling of rotary three-dimensional braiding preforms

Hui Wang, Wanxin Long, Jinhuo Wang, Yizhe Chen, Liu Yang

Proceedings Volume 12800, 128003A (2023) https://doi.org/10.1117/12.3003989

KEYWORDS: 3D modeling, Modeling, Interfaces, Solids, Motion models, Design and modelling, Computer simulations, Motion analysis, Interpolation, Structural design

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This work aims to study the modelling method of braiding preforms based on the rotary 3D braiding process. In the rotary 3D braiding process, the carrier is driven by the horn-gear through its alternating rotation, thus yarns interlacing to form the braiding preform. Encoding the horn-gear and the carrier to study the movement law of the carrier. The trajectory of the carrier and the height of the braiding node jointly determine the spatial topology structure of the braiding preform. The yarn trajectory is fitted and optimized using the cubic B-spline curve, Python script is written to drive CATIA to establish a solid model of the braiding preform and a fabric structure simulation interface is developed using PyQt5. Experiments on the braiding of irregular components are conducted to compare the actual braiding fabric with the corresponding model. The result indicates that the braiding algorithm could accurately record the coordinates of the trajectory points of the carrier; The fitted yarn trajectory conforms to the actual trajectory of the yarn; The simulated preform structure is consistent with the actual braiding preform. Therefore, it can be concluded that the modelling method is suitable for structural simulation of various cross-section braiding preforms.

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