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yarn   parameter
相关语句
  相似匹配句对
     The Fashion of Yarn
     纱线是时尚潮流的风向标
短句来源
     Yarn Hairiness
     纱线毛羽
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     conclusion  ①.
     结论  ①.
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     Methods  Ⅰ.
     方法:Ⅰ.
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     Scattering Parameter
     散射参数
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In this paper, a mechanical model of a yarn tension compensating system commonly used in textile machinery is set up, and a dynamic analysis for this kind of multi-branch compound system is made by using the modified transfer matrix method. As an example, the first three natural frequencies and natural modes of the yarn tension compensating system of the type GE271 tricot knitting machine are calculated, and the steady-state response for the tension fluctuation of yarn path is also obtained....

In this paper, a mechanical model of a yarn tension compensating system commonly used in textile machinery is set up, and a dynamic analysis for this kind of multi-branch compound system is made by using the modified transfer matrix method. As an example, the first three natural frequencies and natural modes of the yarn tension compensating system of the type GE271 tricot knitting machine are calculated, and the steady-state response for the tension fluctuation of yarn path is also obtained. The calculated results agree with the experiments very well. Furthermore, the influences of the tension compensator sizes and the physical yarn parameters on the dynamic characteristics and the tension compensating ability of the system are discussed. Some conclusions useful in practice are presented.

本文建立了纺织机械中常见的复式纱路张力补偿系统的力学模型;应用校正传递矩阵法对这类有多重分岔的复合系统进行了动力学分析.作为算例,本文计算了GE271型经编机上纱路张力补偿系统的前三阶固有频率和振型,以及系统对纱路张力波动的动力响应;得到了与实测结果能很好相符的结论.然后又讨论了张力补偿器各尺寸参数与纱线物理参数对系统动力特性及张力补偿能力的影响,并据此引出了一些有实用价值的结论.

The differential equations of a differential of yarn are is written with the circular cylindrical coordinate system. The exact solutions of the configuration of balloon yarn and the yarn tension can be obtained by numerical methods. The approximate analytic equations of the configuration and tension obtained by analytic methods can describe the influence of balloon yarn parameters on the configuration and tension clearly. It is very obvious that the procedure of analysis is distinct,...

The differential equations of a differential of yarn are is written with the circular cylindrical coordinate system. The exact solutions of the configuration of balloon yarn and the yarn tension can be obtained by numerical methods. The approximate analytic equations of the configuration and tension obtained by analytic methods can describe the influence of balloon yarn parameters on the configuration and tension clearly. It is very obvious that the procedure of analysis is distinct, simple and direct. The relative errors of the two solutions are small.

用圆柱坐标系建立纱线微段的微分方程,用数值方法求解可获得气圈形态及其纱线受力的精确解。用解析方法建立气圈形态及其纱线受力的近似解析表达式,可反映气圈各参数对形态或受力的影响,其分析过程清晰、简捷的特点显著。两种计算结果的相对误差甚微。

In the paper, artificial neural network (ANN) is adopted to analyze fabric tensile property. The BP neural network of three-layers is constructed to obtain the relationship between fabric structural parameters, yarn parameters and fabric tensile property . The important factors that affect tensile property are analyzed. The predicted values and test values are compared and are in good agreement.

采用BP神经网络技术建立反映织物结构参数、纱线参数与织物拉伸性能间关系的三层神经网络模型,根据影响织物拉伸性能的各种参变量,用动量-学习率自适应调整的BP算法训练模型。通过预测值和实验值的比较,表明用神经网络方法预测织物拉伸性能有相当的准确性,从而在一定程度上实现用神经网络预测织物的拉伸性能。

 
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