Multi-objective optimization of shaftless rim-driven thruster based on ISIGHT

This paper performed the multi-objective optimization of shaftless rim-driven thruster (RDT) based on ISIGHT platform to improve the efficiency and thrust of the shaftless RDT. The diameter, the rotational speed and the number of the investigated blades of RDT were set to known. The multi-objective optimization variables were the blade pitch P/D and the blade area ratio A 0 /A e of the investigated blades of RDT. The results show that under the condition that the propulsion efficiency is slightly improved compared with the Original blade, the optimized blade can increase the RDT thrust coefficient by about 15%. The Merit coefficient has increased by about 3%.