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Compared to the traditional steam catapult systems, the electromagnetic launch (EML) system with the permanent magnetic linear synchronous motor (PMLSM) has the features such as high efficiency, high power density and controllability, thus PMLSM is used in the EML system. In this paper, the long primary short secondary PMLSM used in electromagnetic launch system is designed, whose winding in the primary...
Giant magnetostrictive material (Terfenol-D) is a new kind of functional material driven by magnetic-field. Under normal temperature, it has many merits including high strain, big output force and quick response, etc. That makes giant magnetostrictive actuators (GMA) have extensive application on electromagnetic-devices or MEMS such as precise positioning of machine tools, optical systems, micro pumps...
Loss leads to motor temperature rise, and then influences the performance of motor material, so as to limit the improvement of motor running performance and lifetime. The characteristics of high reliability, high speed and big torque are required in some special areas, such as aerospacecraft, weapons. Also the high performances attach tightly with the core loss. So the calculation of motor core loss...
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