Fuzzy control in production of Flexible Forming Exact

The operation of uncoiling and feeding is implemented in the entry section of FFX(Flexible Forming Exact) product line. Tension control in practical steel pipe production is a time-varying and nonlinear system, which has variable parameters, variable load and strong disturbance. Based on fuzzy control algorithm and empirical rules, tension variation and its change rate are determined as input variables for the fuzzy controller of the tension control system. According to general steps and special requirements, the fuzzy controller is then constructed to realize adaptive adjustment control of the system. The simulation result shows that the fuzzy control algorithm can achieve better control effect. Finally, an experimental platform is set up to test the fuzzy control system. The result shows that the improved tension control system can satisfy the control requirements of rapidity, stability and accuracy.