基于编织点起始位置及牵拉速度变化的编织角预测模型

针对二维编织过程中起始编织点位置过高或过低以及牵拉速度变化会导致编织角发生阶段性不匀的问题，通过数学建模的方法建立编织角从不稳定状态到稳定状态过程中编织高度和编织角随时间变化的本构方程，并且预测这一过程所需的时间和编织的织物长度。此外，通过带芯编织方法的实验来验证此模型的有效性，实验结果表明此模型能够有效地预测编织角随时间的变化以及编织角不稳定阶段编织的织物长度。

Predicting model for braiding angle based on initial braiding height and take-up speed

In 2-Dimensional braiding process, if the initial braiding height is too high or low, or take-up speed is changed, those would lead to instability of the braiding angle for a period of time.By mathematical modeling, this paper establish the constitutive equation between braiding height and time, and between braiding angle and time. And the models can precisely forecast the time of unsteady state and the length of the braiding fabric during the unsteady state. Furthermore, the model is verified by the overbraiding experiment. And the experimental results shows that the model can effectively forcast the change of braiding angle with time and the length of the braiding fabric during the unsteady state.