Design and Experimental Validation of Permanent Magnet Motor for Propeller Aerodynamic Noise Test

The aerodynamic noise test platform for a certain type of unmanned aerial vehicle (UAV) imposes strict requirements on the drive motor, demanding high torque, small diameter, and low vibration. Compared to DC motors and induction motors, permanent magnet motors have advantages in terms of torque and volume, making them well-suited to meet the platform’s requirements. In response to the development needs of the test platform for the drive motor, this study systematically analyzes the key technologies that require special attention in the design process of the permanent magnet motor. Through proper electromagnetic design, structural design, cooling design, and vibration design, particularly by verifying the electromagnetic performance under rated load and weak magnetic conditions, a 180 kW permanent magnet motor was manufactured for experimental validation. The motor was successfully utilized for propeller aerodynamic noise testing. The experimental results demonstrate that the 180kW permanent magnet motor meets the technical requirements of the test platform, confirming the accuracy of the permanent magnet motor design methodology. It provides a valuable reference for the design of similar propeller drive motors and holds practical engineering significance.