固体火箭技术Issue(2)：262-266,271,6.DOI:10.7673/j.issn.1006-2793.2014.02.023
基于自由曲面构件的纤维变刚度铺放路径规划
Trajectory planning for free-form surface components based on fiber variable stiffness placement
摘要
Abstract
A new method to design the fiber variable stiffness placement was proposed in view of the composite automatic trajec-tory planning problem. According to the angle linear changing to design the trajectory angle parameter for �45°/0°�, the other space trajectories were generated by isometric space method and orthogonal projection method. The entire laying path was saved as IGES format.The data information about the entire laying path of the free surface component was obtained by the IGES format.And the entire trajectories were designed by NURBS curve fitting. Calculation results show the IGES format is unaffected by parts and boundary condition,which reduces the computational complexity.The initial fitting error of laying path isδ(0.09,0.63,0.3 mm).The fitting error after knot refinement isδ1(0.01,0.09,0.05 mm).This result proves that the precision of the laying head is improved.Af-ter simulation of the trajectory planning,the simulation error is δ2(0.01,0.03,0.15 mm),meeting the requirements of laying.The simulation of the laying robot system proves that this method can realize random direction and variable angle of fiber placement and satisfy the laying technological requirement.关键词
变刚度铺放/自由曲面构件/NURBS曲线/IGES格式/铺放机器人系统仿真Key words
variable stiffness placement/freeform surface component/NURBS curve/IGES format/fiber-placed robot system simulation分类
航空航天引用本文复制引用
戴维蓉,杨涛,王天琪,李亮玉,牛雪娟..基于自由曲面构件的纤维变刚度铺放路径规划[J].固体火箭技术,2014,(2):262-266,271,6.基金项目
天津市应用基础与前沿技术研究计划重点项目（11JCZDJC23000）。 （）
