Method and system for designing oil supply flow path of accessory casing of aero-engine

The invention relates to the technical field of aero-engine lubricating oil accessory design, and discloses an aero-engine accessory casing oil supply flow path design method and system, a three-dimensional numerical simulation parameterization calculation model is flexibly established according to an accessory casing built-in pipeline layout form, the number of oil supply nozzles and the structure, accurate pressure and lubricating oil flow are obtained, and the design method is simple and easy to implement. Meanwhile, a one-dimensional flow path calculation model is combined to efficiently iteratively correct oil supply flow path structure parameters and working condition parameters, forward design of an accessory casing oil supply nozzle is achieved, and the purpose of accurately controlling the lubricating oil flow can be achieved; on the premise of ensuring the design precision, the design efficiency can be greatly improved, the design cost is reduced, and the development cycle of aero-engine products is