Research on geometric development method of integral panel skin surface

The reasonable development of panel skin surface plays an important role in material economization, cost reduction and quality assurance of parts, and besides, is the primary condition of process simulation. The panel skin surface with small curvature, and undertakes small in-plane deforming in forming process. Consequently based on the assumption of constant area of surface, the development of panel skin surface which adopted geometric modeling method was researched in the article. Comparison of theoretical results and development results of developable surface confirmed the accuracy of algorithm. The result of doubly curved surface forecasted the shape of the blank of certain aircraft panel skin successfully.