Abstract:

Large tooling in aircraft manufacture is a mechanical product used to ensure the complex aircraft structure’s figure and coordination. The workload of its design and manufacture is huge, and the developing cycle desired becomes shorter and shorter. It is needed urgently to fulfill concurrent design and manufacture for large tooling, and develop computeraided conceptual design software to support large tooling design as well.In the light of the research on layout design and the large tooling model quoting logical component,a layout design algorithm based on classification and evolution computation according to layout restriction is brought forward.In this algorithm,rational situation of frame element is worked out by evolution computation of anchor-point level,frame element level and tooling level in turn.Computer-aided conceptual design software related is developed and applied to latter-airframe assembly tooling design.It proves less design iteration and lower percentage of tooling sent back.

Key words: layout , design,  , tooling,  , CAD,  , conceptual , design,  , frame,  , assembly , tooling