复合材料平板变刚度轨迹规划及铺放工艺性
发布时间：2018-07-20 18:40
【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。
[Abstract]:In view of the variable stiffness trajectory planning of composite plate and the adaptability of laying process, a numerical solution to solve the filament-laying locus point by "straight curvature" is studied. Based on the analysis of the main deformation mechanism of prepreg wire bundle, the curvature radius of variable stiffness trajectory is selected as the criterion to judge the adaptability of laying process. According to this standard, the relationship between the curvature radius of variable stiffness locus and the dimension of 90 掳direction of flat plate and the length of laying angle interval is studied. It is found that the curvature radius of variable stiffness locus decreases with the increase of placement angle when the dimension of flat plate is 90 掳and the interval value of laying angle is constant, and the curvature radius of variable stiffness trajectory decreases with the increase of placement angle. The curvature radius of variable stiffness locus decreases with the increase of the length of laying angle interval, and the curvature radius increases with the increase of the dimension of 90 掳direction of flat plate when the length of the interval of variable stiffness locus placement angle is fixed.
【作者单位】： 中航复合材料有限责任公司;南京航空航天大学;
【基金】：民用飞机专项科研(MJ-2014-F-03)
【分类号】：TB33
，
本文编号：2134410
[Abstract]:In view of the variable stiffness trajectory planning of composite plate and the adaptability of laying process, a numerical solution to solve the filament-laying locus point by "straight curvature" is studied. Based on the analysis of the main deformation mechanism of prepreg wire bundle, the curvature radius of variable stiffness trajectory is selected as the criterion to judge the adaptability of laying process. According to this standard, the relationship between the curvature radius of variable stiffness locus and the dimension of 90 掳direction of flat plate and the length of laying angle interval is studied. It is found that the curvature radius of variable stiffness locus decreases with the increase of placement angle when the dimension of flat plate is 90 掳and the interval value of laying angle is constant, and the curvature radius of variable stiffness trajectory decreases with the increase of placement angle. The curvature radius of variable stiffness locus decreases with the increase of the length of laying angle interval, and the curvature radius increases with the increase of the dimension of 90 掳direction of flat plate when the length of the interval of variable stiffness locus placement angle is fixed.
【作者单位】： 中航复合材料有限责任公司;南京航空航天大学;
【基金】：民用飞机专项科研(MJ-2014-F-03)
【分类号】：TB33
，
本文编号：2134410
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