Design Method on Low Vibration and Noise of a High-Temperature Superconducting Motor

Vibration and noise are the key performance of marine propulsion motors. With the increase in the power level of marine propulsion motors, it is more and more important to study the vibration level and vibration isolation of marine propulsion motors. A 20 MW HTS motor (HTSM) with air-core stator and superconducting rotor is conceptually designed for marine electric propulsion in this study. Combined with the generation and transmission of the vibration, the full-band low-vibration design was carried out by the system acoustic design, the electromagnetic acoustic design, and the co-design of structure and electromagnetic from the perspective of excitation source and transmission path. A design method for low vibration design of HTSM was obtained, which can provide a reference for the follow-up development of large-capacity low-vibration HTSM.