Continuous fiber printing path generation based on Euler diagram division

被引:0
|
作者
Bai, Qingyun [1 ]
Dai, Ning [1 ]
Zhang, Zeyang [1 ]
Chen, Yuxin [1 ]
Dai, Hongqing [1 ]
机构
[1] Nanjing Univ Aeronaut & Astronaut, Coll Mech & Elect Engn, 29 Yudao St, Nanjing 210016, Peoples R China
基金
国家重点研发计划; 中国国家自然科学基金;
关键词
Continuous fibers; print path planning; Eulerian circuits; principal stress line circuits; REINFORCED POLYMER COMPOSITES; 3D; TOPOLOGY;
D O I
10.1177/09544054241292687
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Continuous fiber printed structures are widely used in aerospace applications because of their excellent performance and high design freedom. Existing path planning methods optimize the continuous fiber printing direction by stress lines or discrete angles, but these methods are far from perfect printing paths and lack planning for connectivity relations. In this study, a planning method for continuous fiber printing paths based on constructing Eulerian circuits from a weighted undirected graph is proposed. The principal stress lines are transformed into a weighted undirected graph, which divides the Eulerian subgraph by splitting the common nodes to plan the continuous fiber printing path circuit. Subsequently, the printing structure parameters are optimized based on simulation analysis. The experimental results, taking MBB (Messerschmitt-Bolkow-Blohm) beams as an example, show that the printing path designed in this paper improves the structural strength by 52.9% and the structural stiffness by 81.7% compared with the conventional printing path.
引用
收藏
页数:12
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