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Simulation of warp tension for power looms

机译:动力织机的经纱张力模拟

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摘要

Warp tension is one of the major factors of the weaving process. Knowledge of the course of warp tension is essential to obtaining a stable process: if the warp tension values are too high, they cause warp breaks; if the values are too low, they block the weft, thus interrupting the weaving process. In this paper, a new way to simulate warp tension is presented. The system analysis of a air jet loom by Picanol nv, leper, Belgium revealed three major movements of the weaving machine that impact warp tension. Based on this analysis, a simulation was designed and realized with Matlab from Math Works, Natick (MA), USA. In a first version, only the change of geometry caused by the movements and basic models for the yarn dynamics are used to simulate yarn tension at different speeds. These movements and their impact on warp tension are measured. The validation of the simulation shows that the results correspond well with reality. In a future study, an improved model of this simulation will be used in combination with a genetic algorithm to calculate new setting parameters for the weaving process.
机译:经纱张力是编织过程的主要因素之一。了解经纱张力的过程对于获得稳定的过程至关重要:如果经纱张力值太高,它们会导致经纱断裂;如果值太低,它们会阻塞纬纱,从而中断编织过程。本文提出了一种模拟经纱张力的新方法。比利时Leper的Picanol nv公司对喷气织机进行的系统分析显示,织机的三个主要运动会影响经纱张力。基于此分析,使用美国Natick(MA)的Math Works公司的Matlab设计并实现了仿真。在第一个版本中,仅使用由运动引起的几何形状变化和纱线动力学的基本模型来模拟不同速度下的纱线张力。测量这些运动及其对经纱张力的影响。仿真的验证表明,结果与实际情况吻合得很好。在将来的研究中,将使用此模拟的改进模型与遗传算法结合使用,以计算编织过程的新设置参数。

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