南京航空航天大学学报2025，Vol.57Issue(2)：318-326,9.DOI:10.16356/j.1005-2615.2025.02.013
基于纱线交织的旋转编织预制体表面形貌预测
Surface Morphology Prediction of Preforms in Rotational Braiding Process Based on Yarn Interlacement
摘要
Abstract
Rotary braiding is an efficient composite preform molding process,and the design of process parameters during braiding is crucial to the preform's forming quality.Traditional models,due to their neglect of the interactions between yarns,result in significant discrepancies between the predicted and actual braiding angles.Based on the mechanism of fabric braiding,this paper divides the interlacing point behavior regions during the braiding process,defines the generation and consumption speeds of yarn interlacing points,and establishes a mathematical model of rotary braiding based on the conservation of interlacing points in the preform.The model achieves accurate predictions of the braiding angle and yarn width of the preform.Furthermore,the validity of the model is verified through braiding experiments using a variable cross-section mandrel.Experimental results show that the model effectively reflects the hysteresis phenomenon of braiding angles and yarn width changes during the variable cross-section braiding process and explores the impact of different speed ratios on the surface quality of the preform.关键词
旋转编织/编织角/预测模型/交织点Key words
rotational braiding/braiding angle/prediction model/interlacement points分类
轻工纺织引用本文复制引用
朱翔宇,单忠德,孙正,郭子桐,王尧尧,刘家乐,高一岑,孙宪鹏..基于纱线交织的旋转编织预制体表面形貌预测[J].南京航空航天大学学报,2025,57(2):318-326,9.基金项目
江苏省前沿引领技术基础研究专项基金(BK20212007) （BK20212007）
青年科学基金(52305376) （52305376）
中国博士后科学基金(YBA23044,YBA23031). （YBA23044,YBA23031）
