规则回转体自动铺丝轨迹规划与丝束增减

doi:10.7527/S1000-6893.2020.23704

Abstract

Abstract: 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.

Key words: advanced composites, automatic fiber placement, fiber path planning, tows drop, secondary development

CLC Number:

V261.97

SONG Guilin, WANG Xianfeng, ZHAO Cong, GAO Tiancheng, XUE Ke. Fiber placement trajectory planning and tows increase or decrease algorithm for revolution body[J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2020, 41(11): 423704-423704.

References 23

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

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