%A DAI Ning, PENG Laihu, HU Xudong, ZHONG Yaosen, QI Dongming %T Transverse vibration characteristics of knitting needles in seamless underwear machines based on axial movement cantilever beam theory %0 Journal Article %D 2021 %J Journal of Textile Research %R 10.13475/j.fzxb.20200803708 %P 193-20 %V 42 %N 02 %U {http://www.fzxb.org.cn/CN/abstract/article_11209.shtml} %8 2021-02-15 %X

During the axial movement of the knitting needle in seamless underwear machines, the transverse vibration characteristics of the knitting needle are closely related to the performance of the knitting mechanism. However, there are few studies on the transverse vibration of knitting needles at this stage during the knitting process, hindering the improvement of stability of the seamless underwear machine in terms of vibration. In this paper, the vibration characteristics were theoretically studied with the knitting needle as an equivalence to an axially moving cantilever beam and the finite element calculation was carried out using ANSYS simulation software. The transverse vibration characteristics of the knitting needles were examined using a high-speed camera. The transverse vibration curve and dynamic frequency value calculated theoretically and by simulation demonstrates high level of resemblance with each other for the transverse vibration curve, and the maximum deviation of the dynamic frequency value is below 3.84%, The experimental results prove the existence of transverse vibration during the knitting process, and the frequency value obtained is consistent with the theoretical and simulation results, which implies the correctness of the theoretical and simulation modeling.