CAJ | 학술논문

在采用固定角算法的复合材料“C”型翼梁自动铺丝试验中，预浸丝在翼梁的拐角区域出现严重的屈曲与皱褶。在分析了其原因的基础上，利用翼梁的结构和受力特点，使翼梁的自动铺丝轨迹尽量向测地线方向靠近，可以显著减小预浸丝在过拐角时的偏转角度，从而消除预浸丝的皱褶和屈曲。轨迹进入非可展翼梁曲面的缘条后，相邻预浸丝束间会出现无法通过自动增减纱动作进行控制的重叠或间隙，在拐角区域采用变角度轨迹设计方法消除微小的重叠或间隙，实现了“C”型翼梁的满覆性铺放，可减少缺陷，提高构件的力学性能。
재채용고정각산법적복합재료“C”형익량자동포사시험중，예침사재익량적괴각구역출현엄중적굴곡여추습。재분석료기원인적기출상，이용익량적결구화수력특점，사익량적자동포사궤적진량향측지선방향고근，가이현저감소예침사재과괴각시적편전각도，종이소제예침사적추습화굴곡。궤적진입비가전익량곡면적연조후，상린예침사속간회출현무법통과자동증감사동작진행공제적중첩혹간극，재괴각구역채용변각도궤적설계방법소제미소적중첩혹간극，실현료“C”형익량적만복성포방，가감소결함，제고구건적역학성능。
In the automated fiber placement (AFP) experiment of the C-shaped composite wing spars by using fixed angle algorithms (FAA), significant buck-ling and wrinkling of the prepreg have appeared in the edge areas of spar. In this paper, we analyze the causes of these problems and use geodesic algorithm to optimize the AFP process based on the structure and stress features of spar, which can signiifcantly reduce the angular delfection when the prepreg is going through the edge areas. And buckling and wrinkling disappeared. Due to the adjacent geodesic trajectories of the non-developable spar surface, overlap or gap on the lfanges has appeared. The overlap or gap is too small which can not cut or feed automatically by the machine. Full coverage placement is obtained by using ifber steering trajectory design method which balances out the overlap or gap in the edge areas, diminishes the de-feats, therefore better mechanical properties of the spar are acquired.