【作者】 高传平；

【导师】 汪黎明；

【作者基本信息】 青岛大学 ， 纺织工程， 2002， 硕士

【摘要】 本文主要研究讨论在纹织CAD过程中，机织物的拉仲、撕裂的预测和模拟问题，是在原课题基础上的进一步延续和扩充，主要完成了两方面的内容，即：①模型的建立和拓展、②计算机模拟实现。 首先，以平纹织物的单元分析法为基础，将前面已建立的平纹织物的拉仲断裂强力的数学模型进行改进和拓展推广，使之适应更多的品种范围。本文主要将平纹织物扩充到斜纹织物上去，对斜纹织物的不同织物品种(这里主要讨论了2／1，2／2，3／1等相关斜纹织物)的横断面处的各根经纱进行受力分析，而后运用平纹织物得出的结论为基础进一步分析得出斜纹织物的拉伸断裂的数学模型，分析比较已建立的模型，发现2／2和3／1斜纹织物拉伸断裂的数学模型一致。将已得到的织物拉伸断裂强力的数学模型组织起来建立了一个适用范围较为广泛的模型库，为以后的计算机模拟提供数学基础。 其次，把建立的数学模型反映到计算机中，实现模拟软件的编制。以已建立的织物拉伸断裂强力和撕裂强力的数学模型为基础，应用程序设计语言(PDL)，对织物的拉伸断裂过程进行动态模拟，并且编制相关应用程序，用户可以通过GDI在界面上输入相关的织物结构参数，从而得到相关的拉伸断裂强力和撕裂强力，也可以通过参数看到织物的拉伸断裂强力与织物各项参数之间的关系。 最后，以平纹织物和斜纹织物为例，采集样品进行实验，并将实验数据与系统得出的数据进行对比，验证模型的准确性，结果差距较小，从而验证了数学模型的准确和系统的可用性。 本文的意义在于：通过建立织物参数与织物机械物理性能之间的数学关系，在计算机上进行织物机械物理性能的模拟；实现了较为宽广范围的织物结构适应性，在设计织物的同时，得到其机械物理性能的指标和效果的近似参考值，为织物的开发和设计提供了理论依据，并大大缩短了产品设计的周期。更多还原

【Abstract】 The article mainly study the prediction and modeling of the woven fabric during the process of textile CAD. The thesis improve and extend the former one ,and it mainly complete two contents ,that is, establishing model and extending.(2)the realization of the computer modeling .At first, on the foundation of the plain-woven fabrics’ unit analysis method, the article aims at improving and amplifying the mathematical model about the tensile and tearing strength of plain-woven fabrics and twill fabrics, so as that the mathematical model can be applied in more species .The thesis mainly apply the plain-woven fabrics in twill fabrics; The strength which act on the warp of different species(here, the thesis mainly argue about twill fabrics including 2/1,2/2 and 3/1 twill fabrics) during the process of tearing have been dealt with ,and then get the mathematical models of twill weaves after having analyzed them according to the conclusion about plain-woven fabrics .Analyzing and constructing the models having been built ,we can find the result:2/2 and 3/1 twill fabric have the same tensile model .The article founds a general model base after organizing the tensile strength’s mathematical model ,and offer a base for the later computer modeling.Secondly, the thesis realizes the design of the computer simulation software with the tensile and tearing mathematical models. With the establishing mathematical models about the tearing and tensile strength of plain-woven and twill weaves, applying program design language(PDL), we can imitate the development pulling thefabric after programming. The customer can pass the GDI on the interface to input the related fabric structural parameters ,and then get the related tensile and tearing strength ;we also can see the relation between the tensile strength and the various fabric parameters.At last, to confirm those models, many plain-woven and twill samples have been collected. By means of experiment and numerical calculation, the agreement between the calculated results and the experimental data is satisfactorily obtained. This confirms the exact degree of those mathematical models and the use of the system.The thesis is of momentous current significance .By establishing the mathematical relation between the fabric parameters and mechanical and physical function of fabrics, we can simulate the fabric mechanical and physical property, at the same time we can get the index and the approximate reference value of the fabric mechanical and physical function. This provide theoretical foundation for the fabric developing and designing, also shorten the period about product designing.Gao Chuanping (Textile Engineering) Directed by Prof. Wang Liming更多还原