Biomedical Engineering Course Assist. Prof. Yanhui GAO E-mail:gyanhui [at] cc.saga-u.ac.jp (Please replace [at] with @ in e-mail address.) Academic Staff Database |
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Research Field : Numerical analyses, Eectrical Machines
Membership in Academic Societies :
IEEE, ICS, IEEJ, MSJ
IEEE, ICS, IEEJ, MSJ
Loss reduction of electric machines (2007.10 - present)
An iron loss calculation method, in which the laminated structure of the iron core, the eddy currents in the steel plates of the laminated core, the anomalous eddy current loss generated by the domain wall motion, and the harmonics due to the inverter power supply are taken into account, is proposed and applied to loss reduction of a rector under inverter power supply. The iron loss of the improved reactor can be reduced to be half of the ordinary one in the experiment (Fig. 1). Now investigation on loss reduction of motors is undergoing.
Noise reduction of electric machines (2007.10 -present)
To investigate the noise reduction of electric machines, a 3D vibration analysis considering both electromagnetism and magnetostriction was developed. The noise reduction method of adjusting the hardness of insulators between the iron cores by cancelling the displacements due to the electromagnetism and the magnetostriction was proposed (Fig. 2). The method is applied to a reactor under inverter power supply and the effectiveness of the proposed new model was verified by using both analysis and the measurement. Now investigation on noise reduction of motors is undergoing.
Development of low-artifact metallic implant in magnetic resonance imaging (2007.10 -present)
To avoid the black-hole artifact of metallic implants under magnetic resonance imaging (MRI), the optimal design of the proposed metallic implant model consisting of paramagnetic and diamagnetic materials is undergoing (Fig. 3).
Dr. Yanhui Gao has published more than 20 journal papers in IEEE Transaction on Magnetics. She received the Distinguished Award from IEEJ in 2011 and had ever been invited by IEEJ and automakers to give lectures on her research.