2015/10/16 例2]DC电机驱动并机械传动（续） T 母 1 Ls+R Js+B U K School of Mechanical Engineering ME369-lecture 5.2 Shanghai Jiao Tong University Fall 2015 例3]喇叭 手i School of Mechanical Engineering ME369-lecture 5.2 Shanghai Jiao Tong University Fall 2015 42015/10/16 4 ME369-lecture 5.2 Fall 2015 School of Mechanical Engineering Shanghai Jiao Tong University [例2]DC电机驱动并机械传动（续） - +  m  m  L - + Ui Uemf Kb 1 L s R a a  K 1 m m J s B  1 N 2 J s B 1 N 2  2 a I ME369-lecture 5.2 Fall 2015 School of Mechanical Engineering Shanghai Jiao Tong University [例3]喇叭