Multi-parameter prediction and yarn interlacing behavior simulation in the step-by-step three-dimensional rotatry braiding process

To address the issues of parameter design iteration and high experimental costs in the manufacturing process of three-dimensional rotary braiding, this study proposes a mechanically enhanced kinematic model capable of efficiently simulating yarn interlacing behavior and predicting braiding parameters. The model integrates process parameters such as yarn tension, initial convergence zone length, and braiding pitch. Based on the dynamic analysis of yarn slippage and interaction forces, it achieves precise predictions of pattern formation, braiding angle, and convergence zone length. The model exhibits high computational efficiency, completing the process simulation of the braiding procedure within a few minutes, thereby verifying its applicability in complex three-dimensional braiding processes. This study provides a theoretical foundation and practical guidance for optimizing composite materials' three-dimensional stepwise braiding process.