| Steering gear system, the actuator of the operating system in aircraft and ship, plays a decisive role in its maneuverability. High performance servo system makes high demands of weight, volume, bearing capacity and control performance. Especially, in high load conditions,the steering gear system needs provide large output power, fast response speed and high reliability. Therefore, the electric hydraulic double acting actuator system was put forward.First of all, we studied and proved the double power steering gear system structure, and constructed the matlab simulation model to verify the feasibility of the system structure and get the steering system structure of the model of synchronous control.Secondly, we made the model of the hydraulic of servo control system and servo motor control system, and selected the AC asynchronous motor as electric drive, and studied the vector control mode, and constructed the matlab model. Combining the fuzzy theory, adaptive the theory and immune algorithm, we improved the traditional PID controller and designed the fuzzy adaptive PID and immune PID. The control performance of the synchronization system was improved effectively.Finally, the hydraulic servo system and motor servo system was connected by non separable master-slave structure. The model of the double power steering gear system was constructed. The simulation results show that the synchronization of the electric hydraulic double acting actuator system has been effectively improved. In 0.1s to 0.2s, the system achieves complete synchronization. |
