含Z向钢针阵列立体织物钢针置换摩擦力分布规律  

Distribution law of steel needle replacement friction force of three-dimensional fabric with Z-direction steel needle

作　　者：董九志[1] 季绅 陈云军[2] 蒋秀明[1] DONG Jiu-zhi;JI Shen;CHEN Yun-jun;JIANG Xiu-ming(Tianjin Key Laboratory of Advanced Mechatronics Equipment Technology,Tiangong University,Tianjin 300387,China;School of Electrical Engineering and Automation,Tiangong University,Tianjin 300387,China)

机构地区：[1]天津工业大学天津市现代机电装备技术重点实验室,天津300387 [2]天津工业大学电气工程与自动化学院,天津300387

出　　处：《天津工业大学学报》2021年第6期77-83,共7页Journal of Tiangong University

基　　金：天津市科技支撑重点计划项目(15ZCZDGX00840)。

摘　　要：为合理设计整体穿刺成型织物钢针置换装备,分析含Z向钢针阵列立体织物在钢针置换时内外层钢针的置换摩擦力分布不均的现象,对立体织物进行细观分析,建立了单行单层织物的弹簧与质量离散线性系统模型,分析了系统模型中的钢针微段的偏移情况,并以此推断钢针阵列置换力分布规律,最后通过实验进行验证。结果表明:织物中纤维束受压变形量由外层向内层逐渐增大,导致钢针置换摩擦力由外层向内层逐渐增大,实验结果与理论预测结果一致。In order to rationally design the steel needle replacement equipment for the integral puncture forming fabric, analyze the phenomenon of the uneven distribution of friction force of the inner and outer layers of the steel needles in the three-dimensional fabric with Z-direction steel needles in the steel needle replacement work, the three-dimensional fabric is analyzed in detail, and a discrete linear system model of spring and mass of the single-line single-layer fabric is established. The deviation of the steel needle micro-segment in the system model is analyzed, and the distribution law of the replacement force of the steel needle array is deduced, which is finally verified by experiments. The results show that the compression deformation of the fiber bundles in the fabric gradu-ally increases from the outer layer to the inner layer, resulting in a gradual increase in the replacement friction force of the steel needle from the outer layer to the inner layer. The experimental results are consistent with the theoretical predictions.

关 键 词：立体织物 纤维集合体 钢针置换摩擦力 离散线性系统 

分 类 号：TS184.9[轻工技术与工程—纺织材料与纺织品设计]