Abstract: In order to design a more reasonable skew distribution of propeller section, the new particle swarm optimization (PSO) arithmetic of the intelligent optimized field combined with panel method was adopted to do the optimization design of the propeller’s skew distribution. The mathematical model and main process of the PSO arithmetic in the optimization design of the skew distribution were given, moreover the validity calculation to the propeller of HSP was did. The convergence of unsteady thrust coefficient’s 2ed amplitude and the skew distribution along with iterative times in two different rake modes was taken. At the same time, the change law of the key blade’s unsteady thrust coefficient along with iterative times in one circuit was also obtained. The results show that the unsteady coefficient fluctuation of the optimization propeller has a little reduction compared with the prototype. So the propeller’s performance can be improved through the optimization of skew in unsteady field and the feasibility of PSO method in propeller’s skew optimization is validated.

Key words: highly skewed propeller, particle swarm optimization(PSO) arithmetic, panel method, thrust coefficient