复合材料科学与工程 ›› 2026, Vol. 0 ›› Issue (6): 65-73.DOI: 10.19936/j.cnki.2096-8000.20260628.008

• 设计与工艺 • 上一篇    下一篇

自动铺丝过程中压辊在曲面模具上的压实力分布研究

何靓1*, 徐小伟1, 朱攀星1, 王小凯1, 刘嘉琪1, 许英杰2*   

  1. 1.中航西安飞机工业集团股份有限公司,西安 710089;
    2.西北工业大学 机电工程学院,西安 710072
  • 收稿日期:2025-04-21 发布日期:2026-07-03
  • 通讯作者: 何靓(1992—),男,博士,高级工程师,主要从事航空复合材料制造技术方面的研究,heliang@hrbeu.edu.cn。许英杰(1984—),男,博士,教授,研究方向为航空航天复合材料材料结构一体化设计与制造的基础和应用,xu.yingjie@nwpu.edu.cn。
  • 作者简介:何靓(1992—),男,博士,高级工程师,主要从事航空复合材料制造技术方面的研究。
  • 基金资助:
    国家重点研发计划(2021YFB3401700);民用飞机专项科研(MJZ1-11N22);国家自然科学基金(U24A2004)

Analysis on the pressure distribution of the roller on curved surfaces in automated fiber placement

HE Liang1*, XU Xiaowei1, ZHU Panxing1, WANG Xiaokai1, LIU Jiaqi1, XU Yingjie2*   

  1. 1. AVIC Xi’an Aircraft Industry(Group) Company Ltd., Xi’an 710089, China;
    2. School of Mechanical Engineering, Northwestern Polytechnical University, Xi’an 710072, China
  • Received:2025-04-21 Published:2026-07-03

摘要: 纤维自动铺放是实现大尺寸复合材料高质量、高效益制造的关键自动化成型技术之一。自动铺丝过程中典型缺陷的形成演化以及复合材料构件的成型质量均受到压辊压实力的影响。本文通过有限元仿真与感压纸试验相结合的方法,系统研究了压辊硬度、模具曲率(凸/凹)及铺放力对压力分布的影响规律,揭示了不同硬度压辊在曲面上压力分布的机理。结果表明:压辊硬度增加会导致接触面积减小与最大接触应力升高;曲面曲率半径增大可提升压力均匀性;而铺放力增大能显著改善分布均匀性。基于压力均匀性指标与几何适配模型,提出了压辊长度与模具曲率的匹配原则,为优化铺丝工艺参数、抑制褶皱等典型缺陷提供了理论依据。

关键词: 自动铺丝, 压力分布, 曲面模具, 铺丝压辊, 感压纸, 有限元分析

Abstract: Automated fiber placement(AFP) is one of the key automated forming technologies for achieving high-quality and cost-effective manufacturing of large-scale composite components. The formation and evolution of typical defects during the automated fiber placement process, as well as the forming quality of composite structures, are influenced by the compaction force of the compaction roller. This study systematically investigates the effects of roller hardness, mold curvature(convex/concave), and placement force on pressure distribution through a combined approach of finite element simulation and pressure-sensitive film experiments, revealing the mechanism of pressure distribution for rollers with different hardness on curved surfaces. The results indicate that increasing the roller hardness reduces the contact area and increases the maximum contact pressure, enlarging the curvature radius of the mold surface improves pressure uniformity, while increasing the placement force significantly enhances distribution homogeneity. Based on the pressure uniformity and geometric constraint, a matching principle between roller length and mold curvature is proposed, providing a theoretical foundation for optimizing fiber placement parameters and suppressing typical defects such as wrinkles.

Key words: automated fiber placement, pressure distribution, curved tool, compaction roller, pressure sensitive films, finite element analysis

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