Application of the differential geometric feedback linearization to the speed control of forging machine

The differential geometry method is proposed to solve the high-accuracy speed control problem of forging machine. Considering the pipe's effect the model is built as a 6-degree affine nonlinear equation which is equivalent to a linear model through differential geometric feedback linearization. For this equivalent linear model the good performance of speed is gained through a pole assignment method. The simulation shows this method is effective.