High Torque Density Torque Motor With Hybrid Magnetization Pole Arrays for Jet Pipe Servo Valve

摘要: Torque motor is one key component that directly influences the dynamic performance of jet pipe servo valve in aircraft. In this paper, a novel torque with hybrid-magnetization pole arrays proposed. By changing magnetization patterns permanent magnets, can significantly improve output by range 47–52% compared traditional designs, while maintaining system size and mass. The design concept operating principle presented. magnetic field distribution formulated analytically equivalent circuit. Different from conventional study, flux leakage magnets coils included to model precision. Subsequently, derived mathematically airgap flux. Following that, numerical calculation conducted validate mathematical models torque. optimization then carried out. One research prototype be mounted either magnet or proposed hybrid array has been developed. test rigs are constructed experiments on prototype. Both computation experimental results verify significant improvement generation motor.