In order to realize a high-speed linear DC motor (LDM), it is desirable to maintain a constant kinetic thrust during a change in driving frequency. The measured value of the thrust constant of the 4-pole LDM is 60.7 N/A. The calculated values obtained by the permanence method and the finite element method (FEM) are 66.1 N/A and 62.8 N/A, respectively. Kinetic thrust at an exciting AC current of 1 A is 54.3 N at a frequency of 100 Hz. This thrust is 10.5% lower compared to the static thrust at an exciting DC current of 1 A.
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机译：为了实现高速线性直流电动机（LDM），期望在驱动频率变化期间保持恒定的动推力。四极LDM的推力常数的测量值为60.7 N / A。通过永久性方法和有限元方法（FEM）获得的计算值分别为66.1 N / A和62.8 N / A。在100 Hz的频率下，在1 A的励磁交流电流下的动推力为54.3N。与1 A的励磁DC电流下的静态推力相比，该推力低10.5％。
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