复合材料科学与工程 ›› 2025, Vol. 0 ›› Issue (12): 63-71.DOI: 10.19936/j.cnki.2096-8000.20251228.009

• 设计与工艺 • 上一篇    下一篇

缝合装置中含间隙刺料机构分析及优化

王昊轩1,2, 何俊杰1,2*, 王天琪1,2, 凌雨风1,2   

  1. 1.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 机械工程学院,天津 300387
  • 收稿日期:2024-11-14 出版日期:2026-02-06 发布日期:2026-02-06
  • 通讯作者: 何俊杰(1973—),女,硕士,副教授,硕士生导师,研究方向为复合材料缝合,1547886762@qq.com。
  • 作者简介:王昊轩(2000—),男,硕士研究生,研究方向为缝合装置设计及优化。
  • 基金资助:
    国家自然科学基金(51975410);天津市“项目+团队”重点培养专项(XC202053)

Analysis and optimisation of the needle driver mechanism with clearance in the sewing device

WANG Haoxuan1,2, HE Junjie1,2*, WANG Tianqi1,2, LING Yufeng1,2   

  1. 1. Tianjin Key Laboratory of Advanced Mechatronics Equipment Technology, Tianjin 300387, China;
    2. School of Mechanical Engineering, TianGong University, Tianjin 300387, China
  • Received:2024-11-14 Online:2026-02-06 Published:2026-02-06

摘要: 为提高碳纤维复合材料缝合成功率,对缝合装置样机进行优化。本文研究了缝合装置中含间隙刺料机构的动力学响应。建立间隙模型并对其进行动力学分析,对比三种含间隙旋转副接头的接触力模型,通过三维建模并使用MATLAB软件对间隙模型进行动力学仿真,研究三种接触力模型对刺料机构的动力学性能影响。搭建实体样机,进行针穿刺试验、缝合碳纤维复合材料试验。研究结果表明:选用流体动力接触力模型对含间隙旋转副接头进行分析,机构的动力学响应更接近于理想旋转副的动力学响应,减小了刺料机构的振动,从而优化了缝合线迹,提高了碳纤维复合材料缝合成功率。由此证明该接触力模型以及机构设计符合缝合碳纤维复合材料要求。

关键词: 碳纤维复合材料, 缝合装置, 刺料机构, 动力学分析, 间隙, 流体动力接触力模型, 缝合成功率

Abstract: The sewing device was designed and optimized with the objective of improving the rate of successful sewing in carbon fiber composite materials. This paper investigates the dynamic characteristics of the joint clearance of the needle driver mechanism in a sewing device. The joint and dynamic model of the needle driver mechanism have been developed, and the contact force models for the three clearance-containing rotary joint have been evaluated. A dynamic simulation of the clearance model is conducted using MATLAB software to examine the influence of three contact force models on the dynamic performance of the needle driver mechanism. Subsequently, a physical sewing device is constructed for the purpose of conducting an experimental analysis. The results of the study show that, the hydrodynamic contact force model is selected for analysis of the clearance-containing rotary joint. This approach results in a closer alignment between the dynamic characteristics of the mechanism and that of the ideal rotary joint, which in turn reduces the vibration of the needle driver mechanism, thereby increasing the rate of successful sewing in carbon fiber composite materials and optimizing the sewing stitches. Thus, it is demonstrated that the contact force model as well as the mechanism design meets the requirements of stitched carbon fiber composite materials.

Key words: carbon fiber composite materials, sewing device, needle driver mechanism, dynamic characteris-tics, joint clearance, hydrodynamic contact force model, the rate of successful sewing

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