Preliminary Design Investigation of Electromagnetic Motors for Turbofan-Drive Assist

This paper describes the procedure and status of the preliminary design investigation of a motor-assisted turbofan propulsion system used for scheduled testing. The applied motor configuration was described earlier for use of turbo/hybrid electric propulsion device. Review of earlier research emphasized the potential of the motor configuration for motor motion assistance of a conventional and/or near future turbofan propulsor. Earlier studies showed the motor configuration’s potential for motor motion assistance of a conventional turbofan propulsor or one developed in the near future. The experiment plan uses a miniaturized turbofan engine model developed at JAXA to assess multi-variable model-based optimization control with an actual turbofan engine. The modification and preliminary design procedure and analytical results are then shown in order. In the context of numerical analysis, the present design motor is expected to be applicable as an independently powered assist measure for turbofan engine control. Finally, some perspectives are given of the potential of this motor configuration for use in multi-dimensional applications.