自动铺丝轨迹理论铺放角度偏差算法

铺放角是复合材料铺层设计的重要参数,在对铺层进行轨迹规划时采取不同的规划算法可能会导致轨迹角度偏离设计角度。本文从轨迹的方向性和可铺放性对固定角度法和测地线法进行了对比分析,在此基础上研究了复合材料自动铺丝轨迹的理论铺放角度偏差,提出了计算理论铺放角度偏差的几何算法,并基于Visual Studio 2010平台,应用CATIA二次开发技术实现了理论铺放角度偏差的计算。最后通过计算复合材料截锥壳45°测地线轨迹的铺放角度偏差验证了角度偏差算法的可行性、可靠性、实用性与高效性。

Algorithm of Theoretical Placement Angle Deviation for Automated Fiber Placement Trajectory

The fiber placement angle is an important parameter in composite layer design. Different trajectory planning algorithms may lead to the deviation of trajectory angle from the design angle. In this paper, the fixed angle algorithm and geodesic algorithm are compared and analyzed in terms of the direction and paving property of trajectory. On this basis, the theoretical placement angle deviation of composite automatic fiber placement trajectory is studied. Then, a geometric algorithm for calculating the theoretical placement angle deviation is proposed. Furthermore, based on Visual Studio 2010 Platform, CATIA secondary development technology is applied to realize the calculation of theoretical placement angle deviation. Finally, the feasibility, reliability, practicability and efficiency of the algorithm are verified by calculating the laying angle deviation of 45°geodesic trajectory on the truncated composite conical shell.