The spindle system of the rice mill machine was reasonably simplified by model and analyzed by the rotor dynamics .The simplified modeling method was to use the point mass to replace sand drum ,iron core ,spiral head ,stirring stick and pulley of the spindle system ,and the quality was related to the corresponding surface of the spindle by remote point . Then ,solution set and rotor dynamics simulations were processed and they were compared with the non simplified model .It is concluded that the simulation time of the simplified model was greatly shortened ,and the frequency values correspondi...
