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dc.contributor.authorZhang, Qiongfangen_US
dc.contributor.authorYan, Liangen_US
dc.contributor.authorDuan, Zihaoen_US
dc.contributor.authorJiao, Zongxiaen_US
dc.contributor.authorGerada, Chrisen_US
dc.contributor.authorChen, I-Mingen_US
dc.identifier.citationZhang, Q., Yan, L., Duan, Z., Jiao, Z., Gerada, C. & Chen, I. (2020). High torque density torque motor with hybrid magnetization pole arrays for jet pipe servo valve. IEEE Transactions On Industrial Electronics, 67(3), 2133-2142.
dc.description.abstractTorque motor is one key component that directly influences the dynamic performance of jet pipe servo valve in aircraft. In this paper, a novel torque motor with hybrid-magnetization pole arrays is proposed. By changing the magnetization patterns of permanent magnets, the torque motor can significantly improve the output torque by range of 47-52% compared with traditional designs, while maintaining the system size and mass. The design concept and operating principle of the torque motor is presented. The magnetic field distribution is formulated analytically with equivalent magnetic circuit. Different from conventional study, the flux leakage of the permanent magnets and coils is included to improve the model precision. Subsequently, the output torque is derived mathematically from the airgap flux. Following that, the numerical calculation is conducted to validate the mathematical models of magnetic field and output torque. The design optimization is then carried out. One research prototype that can be mounted with either conventional magnet or the proposed hybrid array has been developed. The test rigs are constructed and experiments are conducted on the prototype. Both numerical computation and experimental results verify the significant improvement of torque generation of the proposed hybrid magnetization torque motor.en_US
dc.relation.ispartofIEEE Transactions on Industrial Electronicsen_US
dc.rights© 2019 IEEE. All rights reserved.en_US
dc.subjectEngineering::Electrical and electronic engineeringen_US
dc.titleHigh torque density torque motor with hybrid magnetization pole arrays for jet pipe servo valveen_US
dc.typeJournal Articleen
dc.contributor.schoolSchool of Mechanical and Aerospace Engineeringen_US
dc.subject.keywordsMagnetic Field Simulationen_US
dc.subject.keywordsTorque Motoren_US
dc.description.acknowledgementThis work was supported by the National Natural Science Foundation of China under Grant 51875013, Grant 51575026, and Grant 51890882, by the National Key R&D Program of China under Grant 2017YFB1300404, by the Fundamental Research Funds for the Central Universities, and by the Science and Technology on Aircraft Control Laboratory.en_US
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