面向制造的飞机复合材料构件数字化定义

Digital definition of aircraft composite structures for manufacture

为满足数字化研制环境中制造环节的数据需求和对构件可制造性的要求,总结了面向制造的飞机复合材料构件数字化定义的完整构成.通过定义方向坐标系来建立方向基准,并根据构件高斯曲率的不同,给出了3种方向坐标系的定义方法和映射规则.给出了三维模型中几何数据的内容、几何数据和复合材料特征对象的关联关系以及材料铺放数据中复合材料特征对象的层次关系.总结了数字化定义中工艺信息的详细内容和定义方法,并采用基于视图的方式组织管理数字化定义数据集.

In order to satisfy the data demands and requests for composite structure＇s producibility of manufacture process in the composite structures＇ digital development environment, the whole contents of digital definition of aircraft composite structures for manufacture were summarized. The direction datum for composite structures digital models was constructed by defining direction coordinate systems. According to the difference of composite structures＇ Gaussian curvature, the direction coordinate systems were divided into three kinds. The definition methods and mapping rules of these three kinds of direction coordinate system were presented. The contents and classification of geometric data, relationship of composite objects to geometric data and the hierarchy of composite objects in the definition data of laminate lay-up in 3D model were studied. The detail contents and definition methods of process information were summarized, and constructing views based on the above-mentioned data classification methods were used to organize and manage the datasets of digital definition.