Adaptive Predictive Control Based on Ship Magnetic Suspension Vibration Reduction Device

Ship vibration generates different interference forces, resulting in the structural fatigue of important equipment and thereby affecting their service life. To reduce the impact of this interference on the devices, a magnetic suspension vibration reduction device is designed and applied to ships. A predictive control method based on an adaptive model to solve the problem of lift imbalance caused by different types of interference of water flow and hull steering is proposed in this paper. This control method is, therefore, adaptive and predictive. The model parameters in this predictive control can be updated in real time, greatly improving the accuracy of the predictive control. Finally, the results of relevant verifications show that this method has a faster response speed, stronger robustness, and strong anti-interference ability. Furthermore, it can be used to fulfill the vibration reduction requirements of important devices in special ships.