A Graph-Based Pipe Layout Method Considering Clamp Constraint for Aero-Engine

Pipe layout for aero-engine is generally formulated as seeking the shortest collision-free pipe paths in constrained space while meeting certain engineering constraints. In particular, the constraints of clamp layout need to be considered as well, which makes the problem be more complex. In this paper, a pipe layout method considering clamp constraints for aero-engine is presented. A surface visibility graph routing method is used as a basic routing principle, and a layout strategy considering clamp positions, engineering rules and expert experience is designed. The method aims to pave pipes appropriately in aero-engine constrained space, while meeting clamp constraints. Several routing examples are performed on a simplified aero-engine piping model, which demonstrates the effectiveness of the presented layout method.