航空学报 > 2017, Vol. 38 Issue (7): 420904-420904   doi: 10.7527/S1000-6893.2016.420904

圆锥面等测地曲率曲线的轨迹规划方法

刘永佼, 王显峰, 肖军   

  1. 南京航空航天大学 材料科学与技术学院, 南京 210016
  • 收稿日期:2016-11-01 修回日期:2016-11-29 出版日期:2017-07-15 发布日期:2017-02-16
  • 通讯作者: 肖军,E-mail:j.xiao@nuaa.edu.cn E-mail:j.xiao@nuaa.edu.cn
  • 基金资助:

    高档数控机床与基础制造装备"科技重大专项(2016ZX04002-001);江苏高校优势学科建设工程资助项目

Trajectory planning method for constant geodesic curvature curve of cone

LIU Yongjiao, WANG Xianfeng, XIAO Jun   

  1. College of Material Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China
  • Received:2016-11-01 Revised:2016-11-29 Online:2017-07-15 Published:2017-02-16
  • Supported by:

    Major National Science and Technology Special Projects (2016ZX04002-001);A Project Funded by the Priority Academic Program Development of Jiangsu Higher Education Institutions

摘要:

为解决复合材料锥壳铺放过程中的纤维残余应变过大的问题,提出了等测地曲率曲线的轨迹规划方法。通过分析发现轨迹的测地曲率决定了纤维的残余应变,于是通过计算圆锥上任意曲线的测地曲率推导出了等测地曲率曲线的表达式,并证明在圆锥展开面上等测地曲率曲线是圆弧。最后,通过计算等测地曲率轨迹的残余应变及其与圆锥母线的夹角分析该轨迹铺放工艺性。结果表明:等测地曲率轨迹相较于固定角轨迹与测地线轨迹具有良好的可设计性和铺放工艺性。

关键词: 复合材料, 自动铺丝, 轨迹规划, 等测地曲率, 圆锥面

Abstract:

To solve the problem of excessive residual strain of fiber in conical shell laying process, a trajectory planning method with constant geodesic curvature is proposed. Analysis shows that the geometric curvature of the trajectory determines the residual strain of the fiber. The expression for the constant curvature curve is then derived by calculating the geometrical curvature of the arbitrary curve on the cone, and the constant geodesic curvature curve is proved to be a circular arc on the conical surface. The trajectory laying process is analyzed by calculating the residual strain of the constant geodesic curvature trajectory and its angle with the conical busbar. The results show that the constant geodesic curvature trajectory is better designability and laying processability than the fixed angle trajectory and the geodesic trajectory.

Key words: composite material, automated fiber placement, trajectory planning, constant geodesic curvature, conical surface

中图分类号: