【摘要】：針對(duì)復(fù)合材料平板變剛度軌跡規(guī)劃及其鋪放工藝適應(yīng)性,研究了一種"以直代曲"求解鋪絲軌跡點(diǎn)的數(shù)值解法。通過(guò)分析預(yù)浸絲束變形的主要機(jī)制,選取變剛度軌跡的曲率半徑作為鋪放工藝適應(yīng)性的評(píng)判標(biāo)準(zhǔn)。并根據(jù)該標(biāo)準(zhǔn)研究了變剛度軌跡曲率半徑與平板90°方向尺寸、鋪放角、鋪放角區(qū)間長(zhǎng)度的關(guān)系。研究發(fā)現(xiàn):在平板90°方向尺寸、鋪放角區(qū)間值一定的情況下,變剛度軌跡曲率半徑隨鋪放角的增大而減小;在平板90°方向尺寸一定的情況下,變剛度軌跡曲率半徑隨鋪放角區(qū)間長(zhǎng)度的增大而減小;在平板變剛度軌跡鋪放角區(qū)間長(zhǎng)度一定的情況下,曲率半徑隨平板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 擄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 擄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 擄direction of flat plate when the length of the interval of variable stiffness locus placement angle is fixed.
【作者單位】： 中航復(fù)合材料有限責(zé)任公司;南京航空航天大學(xué);
【基金】：民用飛機(jī)專項(xiàng)科研(MJ-2014-F-03)
【分類(lèi)號(hào)】：TB33
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本文編號(hào)：2134410