Patent ID: 11940528
Assignee: HARBIN ENGINEERING UNIVERSITY
Field: Computer technology (Electrical engineering)
Classification: CPC G  Y | IPC G

Claim 4:
5. The method for evaluating sonar self-noise at a ship design stage according to claim 1, wherein step S4 specifically comprises:
step S401: acquiring the mechanical excitation load of the ship structure full-scale geometric simulation model based on bench testing results of engine mount vibration of a parent device, wherein the mechanical excitation load comprises a vibration acceleration level load and an acoustic power level load;
step S402: determining the hydrodynamic excitation load applied to the hull surface of the ship structure full-scale geometric simulation model at a preset speed according to the navigation condition of a ship design; and
step S403: acquiring the propeller excitation load of the ship structure full-scale geometric simulation model according to actual ship testing results.