基于ANSYS的加捻三角区内纤维变形数值模拟

根据纤维力学性质建立加捻三角区有限元模型，利用ANSYS13.0软件对加捻三角区纤维变形进行模拟，结合纺纱实验分析了纤维变形对纱线性能的影响。以JC14.6tex环锭纱和赛络纱为例，得到了相同条件下，环锭纱和赛络纱纺制过程中加捻三角区内纤维的变形规律和实际纺制的两种纱线的性能指标，结果表明：加捻三角区内纤维变形沿着三角区中心线呈对称分布；纤维变形与加捻三角区的形状有密切关系；与环锭纺相比，赛络纺加捻三角区内纤维变形明显较小且变形一致性好；纤维变形对纱线的毛羽和强力有着重要影响。

Numerical simulation of deformation of fibers in spinning triangle based on ANSYS

In this paper, the finite element model of fibers in the spinning triangle based on the mechanical properties of fiber is built. Then, the deformation of fibers at spinning triangle is simulated using ANSYS13.0 software. Next, the effect of deformation of fibers on yarn properties is analyzed combining with the experimental spinning .Under the same conditions, the difference of fibers deformation is presented and the performance indexes are tested between JC14.6tex ring spun yarn and Sirospun yarn. The results indicate that the deformation of fibers at spinning triangle is symmetric along the center line of triangle; the relationship is closely between the deformation of fibers and the shape of spinning triangle; compared with the ring spinning, the deformation of fiber at the Sirospun spinning triangle is apparently smaller and the consistency of deformation of fibers is fine ; the influence of deformation of fibers on yarn hairiness and yarn strength is important.