Abstract:

Multi-level skeleton model of an aircraft wing structure oriented associated design was introduced and a top-down transmission of design intent was achieved. In order to control and manage skeleton model and the downstream parts, a new element publication mode was used and an element publication tool was developed, which improved the efficiency and quality. Combining top-down modeling idea and automatic update feature of associated design, a top-down associated design method of aircraft wing structure was put forward based on skeleton model. By selecting design datum of skeleton model and the upper and lower constraining surface of aircraft wing structure, the output structural part was assembled at the parent component in the absolute coordinate system without the needs for re-assembly. Based on the association between skeleton model and the structural part, real-time automatic update and fast reconstruction of the wing aircraft structural part was achieved. Rib of aircraft wing box was taken as an example to verify the feasibility and effectiveness of this method.

Key words: aircraft wing structure, top-down, associated design, skeleton model, element publication

摘要：

介绍了面向关联设计的飞机翼面结构多层级骨架模型，实现了设计意图自顶向下的传递；为进行骨架模型与下游零件间的关联的控制和管理，采用了新的元素发布方式，并开发了元素发布管理工具，提高了设计的效率和质量；结合自顶向下的建模思想和关联设计自动更新的特点，提出了基于骨架模型的飞机翼面结构自顶向下关联设计方法，通过选择飞机翼面结构骨架模型的设计基准和上下翼面约束曲面，输出的结构件以绝对坐标系装配在父部件下，无需进行再次装配，并基于骨架模型与结构件间的关联，实现对飞机翼面结构件的实时自动更新和快速重建。最后，以机翼盒段翼肋为例验证了方法的可行性和有效性。

关键词: 飞机翼面结构, 自顶向下, 关联设计, 骨架模型, 元素发布