共查询到19条相似文献,搜索用时 265 毫秒
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为充分发挥三维多轴织物作为产业用织物的优势,拓宽其应用领域,基于编织/机织混合的原理,在充分研究三维五轴织物结构和织造工艺的基础上,设计了三维五轴平型织机预制件结构,并对三维五轴平型织机进行了概念化设计;确定了三维五轴织造过程中斜纱、垂纱、纬纱引导机构和综框运动机构、卷取机构、压紧机构、定型机构间运动配合原理及各机构间运动时间配合关系。指出:斜纱引导块连续、循环地以"蛇行"方式运动引导斜纱角度在±45°切换,使织机结构更紧凑,织造幅宽大幅增加;非间隔垂纱引导方式可织造普通三维五轴织物,间隔垂纱引导方式可织造"蜂巢"型三维五轴织物;三维五轴平型织机的设计为三维多轴平型织机虚拟样机及其物理样机的研制提供理论基础。 相似文献
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为能够通过深入研究花型设计、穿纱设计可织性和三维仿真方法来提高多色调线横条纹织物的开发效率,根据调线圆纬机的编织原理和特点构建花型设计模型并生成色纱编织序列模型。计算出各成圈系统所编织的色纱种类并生成导纱模型,依据排纱原则建立了穿纱设计模型。构建了线圈几何模型和平移映射模型,并探究多色调线横条纹织物的三维仿真方法。运用上述数学模型和理论进行程序设计,以11色渐变调线横条纹为例验证其花型设计和穿纱设计在4色调线圆纬机上的编织可行性,并对比织物实物图和三维仿真图。结果表明,设计模型验证方法切实可行,仿真花色效应良好,该方法为多色调线横条纹织物的设计方案可织性分析和织物三维仿真提供了理论参考。 相似文献
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角度联锁三维机织物的设计与生产 总被引:7,自引:4,他引:7
介绍了三维织物在国内外的应用及角度联锁三维机织物及其变化织物的特点与使用情况,重点对角度联锁三维机织物及其变化织物(加有衬型纱的角度联锁织物和正交机织物)的交织原理进行分析,对其织物组织结构、织物组织的设计要点以及织物形成过程进行了探讨. 相似文献
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The three-dimensional (3D) weaving process offers the ability to tailor the mechanical properties via design of the weave architecture. One repeat of the 3D woven fabric is represented by the unit cell. The model accepts basic weaver and material manufacturer data as inputs in order to calculate the geometric characteristics of the 3D woven unit cell. The specific weave architecture manufactured and subsequently modelled had an angle interlock type binding configuration. The modelled result was shown to have a close approximation compared to the experimentally measured values and highlighted the importance of the representation of the binder tow path. 相似文献
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Ashwini Kumar Dash 《纺织学会志》2018,109(7):952-960
3D fabrics as reinforcement can be manipulated in discrete numbers of weave designs in order to earn maximum gain so that the desired mechanical properties of the composites can be achieved eventually for particular end use. Thus interest has been focused to investigate tensile, impact and knife penetration properties of 3D orthogonal and interlock structures of different weave designs by varying their binder interlacement patterns keeping stuffer binder ratio constant. The tensile properties were effectively influenced by the linear densities as well as crimp of load bearing tows, which were determined by the weave design of the fabric. The compact structure generated from regular weave pattern in case of 1 × 1 plain orthogonal and 1 × 1 plain interlock fabrics exhibited better impact energy absorption. Owing to higher values of peak energy in the knife penetration test, it is revealed that more is the number of fibres in the in-plane direction better is the protection. 相似文献
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为降低复杂纺织机械装备的设计成本与制造难度,将3D打印技术应用于纺机功能模块比例模型研制。设计了连杆式打纬-开口机构的数字化样机,并将其转化为STL格式进行切片处理和模型包计算,通过分析比较模型的放置方向、材料用量及成型时间等因素,确定最优3D打印工艺参数。借助工业级3D打印机制作了比例模型,并通过C语言和单片机成功开发了机电一体化系统控制平台。利用3D打印一次成型的技术优势,有利于降低物理样机的研发成本和实验难度,且为纺织机械装备的模型展示、机构验证、性能评估及可靠性分析等提供了新的思路与参考。 相似文献
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二重组织织物计算机三维模拟的实现 总被引:1,自引:1,他引:0
探讨利用计算机进行二重组织织物三维模拟的实现方法.在建立二重组织织物计算机设计模型的基础上,依据其整数矩阵中各组织点的性质,基于织物结构的Peirce模型,利用虚拟现实建模语言(VRML),构建了二重组织织物结构的三维仿真模型.进一步结合Java语言编程,实现了表、里组织纱线颜色、光照等参数的网络交互设计.以经二重组织为例,进行了计算机三维模拟及网络交互设计. 相似文献
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为拓展机织物热舒适性设计、评估和优化的思路,提供一种有效预测织物热阻的方法,基于织物的三维模型及传热学理论,对织物系统进行一维热传递的数值模拟,得到织物传热过程中的温度分布特征。利用显微图像及切片技术获取织物几何结构参数,建立平纹织物的几何模型,并与纱线周围静止空气装配,构成织物系统的三维模型,借助有限元分析软件ABAQUS,根据模拟环境设置边界条件与相互作用,计算模型的数值解。最后通过模拟皮肤散热的恒温平板实验,对数值模拟结果进行验证,结果显示:织物外表面温度的模拟值与实验值随时间变化的一致性较好,理论热阻值与实验热阻值相对误差为3.9%,二者吻合度较高。 相似文献
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Surface friction of fabrics is one of the prominent tactile properties which influence the comfort and application of clothes. In this paper, a new approach is proposed to characterize the surface friction of woven fabrics by presenting a model based on fabric structural parameters. The model coefficients are optimized with the aid of the genetic algorithm, using the experimental friction results obtained from the multi-directional tactile sensing mechanism. The model is developed using the properties of 25 groups of woven fabrics consisting of 5 various weave structures and 5 different weft densities, with similar fibre composition. The statistical analysis of Friction results clarified that the effect of fabric structural parameters such as weave structure and weft density is significant in the confidence range of 95%. The importance of proposing the friction model is that the frictional properties of woven fabrics can be estimated by considering the structural parameters of woven fabrics. This model can be utilized for the forecasting of the friction resistance of various types of woven fabrics without experimental testing procedures. 相似文献