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    • 18. 发明申请
    • FIBRE ORIENTATION OPTIMISATION
    • 光纤定位优化
    • WO2014060747A1
    • 2014-04-24
    • PCT/GB2013/052696
    • 2013-10-16
    • AIRBUS OPERATIONS LIMITED
    • PRIDIE, Jago
    • B29C70/38G01N23/00
    • B29C70/38G01N2223/615
    • The present application is concerned with methods of determining optimised fibre paths for complex composite components manufactured from multiple layers of composite material, particularly such components manufactured using an automated fibre placement (AFP) process. One aspect provides a method of determining an optimised fibre path for a geometrical feature of a composite component comprising a plurality of layers of composite material, each layer of composite material comprising a plurality of unidirectional fibres embedded in a matrix. The method includes manufacturing a test piece by: laying up a plurality of composite plies to form a planar charge, each composite ply comprising a plurality of unidirectional fibres embedded within a matrix; and shaping the planar charge by forming it over a mandrel using a hot drape forming process, the shaped charge having a shape corresponding to the geometrical feature of the composite component. Then, at each of one or more datum points, measuring a direction of the unidirectional fibres of one of the plurality of composite plies of the manufactured test piece with respect to a local coordinate system of said datum point. An optimised fibre path for the geometrical feature is determined based on the one or more measured fibre directions of said one of the plurality of composite plies.
    • 本申请涉及确定由多层复合材料制成的复合复合材料组件的优化纤维路径的方法,特别是使用自动纤维布置(AFP)工艺制造的这种部件。 一方面提供了一种确定复合材料组件的几何特征的优化光纤路径的方法,所述复合材料组件包括多层复合材料,每层复合材料层包含嵌入矩阵中的多个单向纤维。 该方法包括:通过以下步骤来制造测试件:铺设多个复合层以形成平面电荷,每个复合层包含嵌入矩阵内的多个单向纤维; 并且通过使用热覆盖形成工艺在心轴上形成平面电荷来成形平面电荷,成形电荷具有与复合部件的几何特征相对应的形状。 然后,在一个或多个基准点中的每一个处,相对于所述基准点的局部坐标系测量制造的测试片的多个复合层之一的单向纤维的方向。 基于所述多个复合层中的所述一个复合层的一个或多个测量的纤维方向来确定用于几何特征的优化的光纤路径。