摘要
针对船舶航行过程中,由于不均布载荷和随机海浪的作用导致发生不规则横倾运动的问题,通过集成横摇模型和减摇水舱控制系统,建立Matlab下的船舶浮态调整仿真模型。该模型控制系统采用PID控制算法,通过调整水舱水量保证船舶竖直的浮态位置。同时,分析不同遭遇角、波高下的海浪对船舶姿态的影响,并在该模型基础上设计了Kalman滤波器来滤除波浪干扰信号,确定船舶在不均布载荷作用下的真实横摇角度,证明Kalman滤波的实用性。通过比较仿真结果和理论计算值,确定横倾模型的正确性,同时验证该控制系统有利于提高船舶的横倾稳定性和安全性。
A special case is discussed,where the ship is heeling irregularly under an asymmetric loading and random waves,through the method of integration with heeling model and pump-driven active tank control system,a floating-state adjustment simulation model of the ship is established set up based on Matlab. The model adopts the PID control algorithm,by transferring liquid between the tanks to keep the ship in upright floating position. The impact of wave disturbance at different encounter angles or wave heights on ship is analyzed,Kalman filter is designed to eliminate the wave disturbance signals,in order to identify heeling angle caused by asymmetric loading change. The results proved the practicability of Kalman filtering.To verify the heeling model,the simulation results are compared with the theoretical calculation. The concept of the control system is helpful to improve the ship＇s heeling stability and safety.
出处
《舰船科学技术》
北大核心
2015年第9期56-60,共5页
Ship Science and Technology
基金
中央高校基本科研业务费专项资金创新项目(SWJTU11CX024)
