复合材料预制体双边缝合装置挑线机构优化设计与缝线张力研究  

Optimal design of thread-taking-up mechanism and study on suture tension of composite prefabricated double-sided suture device

作　　者：吴承原 董九志[1,2] 蒋秀明[1,2] WU Chengyuan;DONG Jiuzhi;JIANG Xiuming(School of Mechanical Engineering,Tiangong University,Tianjin 300387,China;Advanced Mechatronics Equipment Technology Tianjin Area Major Laboratory,Tiangong University,Tianjin 300387,China)

机构地区：[1]天津工业大学机械工程学院,天津300387 [2]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

出　　处：《复合材料科学与工程》2024年第10期103-109,共7页Composites Science and Engineering

基　　金：天津市科技支撑重点计划项目(15ZCZDGX00840)。

摘　　要：为解决碳纤维缝线在过线道中因张力过大产生毛羽较多的问题,对双边缝合装置的缝线张力进行分析,基于双边缝合装置缝线过线道建立悬链线模型及缝线与张力调节器、挑线孔和过线环张力模型。分析缝线缝合过程中张力变化情况,重点采用约束随机方向法对挑线机构构件尺寸进行优化,并对优化前后双边缝合装置进行缝合实验。实验结果表明:在优化后的挑线机构下,叠层机织碳布双边缝合装置的过线道缝线张力减小了58%,解决了缝线在过线道因张力过大产生毛羽较多的问题,改善了缝线线迹的质量,为后续保证缝线线面张力稳定打下基础。In order to solve the problem of excessive tension of carbon fiber suture in the thread path,the thread tension of double-sided suture device was analyzed.Catenary model,thread and tension adjuster,thread taking-up hole and thread ring tension model were established based on the thread path of double-sided suture device.The tension variation during suture was analyzed,and the structure size was optimized by constrained random direction method for the thread taking-up mechanism,and the suture experiment was carried out for the optimized two-sided suture device.The experimental results show that the tension of the overpass suture of the double-sided carbon fabric suture device is reduced by 58%under the optimized taking-up mechanism,which solves the problem of more hair caused by excessive tension in the overpass suture,improves the quality of the stitches,and provides a basis for ensuring the stability of the tension of the stitches.

关 键 词：双边缝合 缝线张力 挑线机构 优化设计 缝合实验 复合材料 

分 类 号：TB332[一般工业技术—材料科学与工程]