2015/10/16 DC电机结构 定子（磁体） 转子 电 换向器R,一00 外壳及支承 School of Mechanical Engineering ME369-lecture 5.2 Shanghai Jiao Tong University Fall 2015 例1DC电机驱动 L 000 B.O di+Ri+E时=e0 La dt J0+B0=Tm-TL Tm=KTi E时=K。0 School of Mechanical Engineering ME369-lecture 5.2 Shanghal Jiao Tong University Fall 2015 22015/10/16 2 ME369-lecture 5.2 Fall 2015 School of Mechanical Engineering Shanghai Jiao Tong University DC 电机结构 m m  换向器 定子(磁体） 电枢 外壳及支承 轴 emf u a i R a L a   转子 N S B cf cf ci B c v   cemf u ME369-lecture 5.2 Fall 2015 School of Mechanical Engineering Shanghai Jiao Tong University [例1]DC电机驱动   R a L a B m m J  m i u a i   emf u m  L  B m m 