飞机翼面结构自顶向下关联设计

Top-down Associated Design of Aircraft Wing Structure

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。

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 mod- eling 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 skele- ton model and the upper and lower constraining surface of aircraft wing structure, the output struc- tural 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 air-craft wing box was taken as an example to verify the feasibility and effectiveness of this method.