玻璃钢/复合材料 ›› 2017, Vol. 0 ›› Issue (12): 29-33.

• 基础研究 • 上一篇    下一篇

复合材料平板变刚度轨迹规划及铺放工艺性

黄威1,王显峰2,姚锋1   

  1. 1.中航复合材料有限责任公司,北京100300
    2.南京航空航天大学,南京210016
  • 收稿日期:2017-08-28 出版日期:2017-12-20 发布日期:2017-12-20
  • 作者简介:黄威(1990-),男,硕士,主要从事复合材料自动铺放成型方面的研究,hw0618@126.com
  • 基金资助:
    民用飞机专项科研(MJ-2014-F-03)

PLACEMENT MANUFACTURABILITY OF FIBER STEER TRAJECTORY PLANNING FOR COMPOSITE FLAT

HUANG Wei1, WANG Xian-feng2, YAO Feng1   

  1. 1.AVIC Composite Corporation Ltd., Beijing 100300, China;
    2.College of Material Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China
  • Received:2017-08-28 Online:2017-12-20 Published:2017-12-20

摘要: 针对复合材料平板变刚度轨迹规划及其铺放工艺适应性,研究了一种“以直代曲”求解铺丝轨迹点的数值解法。通过分析预浸丝束变形的主要机制,选取变刚度轨迹的曲率半径作为铺放工艺适应性的评判标准。并根据该标准研究了变刚度轨迹曲率半径与平板90°方向尺寸、铺放角、铺放角区间长度的关系。研究发现:在平板90°方向尺寸、铺放角区间值一定的情况下,变刚度轨迹曲率半径随铺放角的增大而减小;在平板90°方向尺寸一定的情况下,变刚度轨迹曲率半径随铺放角区间长度的增大而减小;在平板变刚度轨迹铺放角区间长度一定的情况下,曲率半径随平板90°方向尺寸的增大而增大。

关键词: 复合材料, 自动铺丝, 变刚度, 曲率半径, 工艺性

Abstract: In order to explore trajectory planning for flat fiber steer and the placement manufacturability, this paper discussed a numerical method to obtain the path point of placement with straight line instead of curve. By analyzing deformation mechanism of prepreg tow, a new evaluation criterion for placement manufacturability based on the curvature radius of steer trajectory was proposed. And a paramatic study was conducted to investigate the effect of flat length in 90 degree direction, layup angle and angle interval on fiber steer curvature radius. The results show that the trajectory curvature radius of fiber steer is increased with the layup angle when the flat length in 90 degree direction and layup angle interval are fixed. On condition that flat 90 degree direction length is fixed, the trajectory curvature radius of fiber steer is decreased with the layup angle interval. When layup angle interval is fixed, the trajectory curvature radius of fiber steer is increased with the flat 90 degree direction length.

Key words: composite materials, automated fiber placement, fiber steer, curvature radius, manufacturability

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