Fiber placement trajectory planning and tows increase or decrease algorithm for revolution body

被引：0
|
作者：
Song G. [1 ]
Wang X. [1 ]
Zhao C. [1 ]
Gao T. [1 ]
Xue K. [1 ]
机构：
[1] College of Materials Science & Technology, Nanjing University of Aeronautics and Astronautics, Nanjing
来源：
Hangkong Xuebao/Acta Aeronautica et Astronautica Sinica | 2020年 / 41卷 / 11期
基金：
中国博士后科学基金;
关键词：
Advanced composites; Automatic fiber placement; Fiber path planning; Secondary development; Tows drop;
D O I：
10.7527/S1000-6893.2020.23704
中图分类号：
TP39 [计算机的应用];
学科分类号：
081203 ; 0835 ;
摘要：
To meet the requirements of full layability of automatic fiber placement and overcome the shortcomings of current trajectory planning, different tows increasing and decreasing algorithms based on path planning of AFP (Automated Fiber Placement) are proposed in this paper. The definition of fiber direction and the generation algorithm of the central track are first discussed to determine the number of central trajectories. Then, the tows overlapping coefficient is used as an important parameter to propose a single-sided fiber cutting algorithm and a double-sided fiber cutting algorithm for the local fiber accumulation and vacancy problems. The overlap area and gap area after cutting are obtained to uniformly cover the fiber tows on the surface of the core mold. Finally, based on the CATIA CAA secondary development platform, the above algorithms are integrated into the fiber placement CAD system, and the correctness of the algorithms is verified by the motion simulation system. Using the proposed tows increase and decrease algorithms, the gap/overlap areas are evenly distributed, minimizing the adverse effect of the accumulation of related defects such as the resin-rich area on the performance. © 2020, Beihang University Aerospace Knowledge Press. All right reserved.
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