Design and Optimization of Geometrical Parameters for a High-Flow Gear Pump based on Julia

In the field of aerospace propulsion, multi-electric engine has become an important direction the development. The traditional hydraulic fuel supply system can no longer support the high performance, meanwhile, electric fuel pumps have put forward higher requirements for the small volume, light weight, and high integration. In order to satisfy the new requirements, the structural parameters of the gear pump are designed in detail according to the indicators. Several restraint conditions are added based on considering more practical problems. Regarding small volume and light weight as design target, the parameters are optimized by genetic algorithm. The results show that the optimization has achieved good results, which can provide reference for the design of aviation fuel pump in practical engineering application.