正交投影在自动铺丝轨迹规划中的应用

玻璃钢/复合材料 ›› 2018, Vol. 0 ›› Issue (5): 69-74.

正交投影在自动铺丝轨迹规划中的应用

常亮¹, 王显峰^1*, 刘永佼², 马成¹

1.南京航空航天大学材料科学与技术学院,南京210016;
2.航天材料及工艺研究所,北京100000

收稿日期:2017-12-06 出版日期:2018-05-20 发布日期:2018-05-20
通讯作者: 王显峰(1980-),男,博士,副教授,主要从事复合材料自动铺放成型方面的研究,wangxf@nuaa.edu.cn。
作者简介:常亮(1990-),男,硕士研究生,主要从事复合材料自动铺放成型方面的研究。
基金资助:
“高档数控机床与基础制造装备”科技重大专项(2016ZX04002-001-07);江苏省高校优势学科建设工程资助项目

APPLICATION OF ORTHOGONAL PROJECTION IN AUTOMATIC LAYING TRAJECTORY PLANNING

CHANG Liang¹, WANG Xian-feng^1*, LIU Yong-jiao², MA Cheng¹

1.College of Material Science and Technology, Nanjing University of Aeronautics and Astronautics,Nanjing 210016, China;
2.Aerospace Research Institute of Matericals & Processing Technology, Beijing 100000, China

Received:2017-12-06 Online:2018-05-20 Published:2018-05-20

摘要/Abstract

摘要： 为满足铺放过程中纤维方向的要求,提出了一种基于网格化曲面正交投影的铺丝路径生成算法。首先利用点到自由曲面正交投影的性质,提出了点的正交投影算法;在此基础上对确定投影曲线过程中出现无效投影的问题提出了相应的解决办法,并将所设计的空间曲线投影到网格化曲面上得到铺丝基准路径,再使其沿着切片界面轮廓曲线等距偏移得到所有路径。通过基于VC++编程实现了文中算法。实验结果表明所提出的正交投影算法的正确性和有效性,基于网格化曲面正交投影的铺丝路径生成算法能满足铺丝工艺要求。

关键词: 复合材料, 自动铺丝, 网格化曲面, 正交投影, 轨迹规划

Abstract: In order to meet the requirement of fiber orientation during laying, an algorithm for path generation based on orthogonal projection of gridded surface is proposed in this paper. First, the property of orthogonal projection of the points upon parametric curves to the free-form surface-the closest point from the test point on the parametric surface, is applied to propose the orthogonal projection algorithm of points. On this basis, the problem encountered in the process of determining the projective curve, like invalid projection, is solved. And the designed space curve is projected onto the gridded surface to get the reference path of the laying wire. Then, all the paths are obtained by equidistantly shifting the contour curve along the slicing interface. The algorithm in the paper is implemented by adopting the programming based on VC++. The experimental results show that the algorithm is correctly and validly, and the algorithm of laying wire path generation based on the orthogonal projection of gridding surface can meet the requirement of laying process.

Key words: composite material, fiber placement, gridded surface, orthogonal projection, trajectory planning

中图分类号:

TB332

常亮, 王显峰, 刘永佼, 马成. 正交投影在自动铺丝轨迹规划中的应用[J]. 玻璃钢/复合材料, 2018, 0(5): 69-74.

CHANG Liang, WANG Xian-feng, LIU Yong-jiao, MA Cheng. APPLICATION OF ORTHOGONAL PROJECTION IN AUTOMATIC LAYING TRAJECTORY PLANNING[J]. Fiber Reinforced Plastics/Composites, 2018, 0(5): 69-74.

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