基于AR预报的船舶减摇模拟分析  

Simulation of Ship Stabilizing Fin Control Based on AR Forecasting

作　　者：段文洋[1] 王瑞锋 赵良明[2] 韩阳[1] 

机构地区：[1]哈尔滨工程大学船舶工程学院,哈尔滨150001 [2]中国舰船研究院,北京100192

出　　处：《武汉理工大学学报》2014年第3期59-63,共5页Journal of Wuhan University of Technology

基　　金：总装水动力预研项目(51314010102)

摘　　要：采用二维半理论直接计算船舶控制参数,有效改进了PID控制器参数整定的困难;引入船舶运动极短期预报方法(AR预报)解决了PID方法控制滞后的缺陷,称为PID+AR控制方法;同时充分考虑船舶在不规则波中运动流场的记忆效应改进了减摇鳍控制精度。针对安装了两对减摇鳍的船舶横摇运动进行时域数值模拟,对比规则波和不规则波中两种控制方法的优劣,为船舶减摇鳍系统的设计提供了一种新思路。In this paper,based on the 2.5D theory,the direct calculation of the control parameters method was adopted to effectively improve the PID controller parameter tuning difficulties. The very short-term forecasting of ship motion u- sing AR forecasting model was introduced to solve the control lag defects of PID controller. Meanwhile, the memory effect of the ship in irregular wave was taken fully into account to optimize the control accuracy of the stabilizing fin. Using the newly proposed approach,the comparison of two control methods of ship roll motion between the PID controller and PID ＋ AR controller was made for the ship of installing two pairs of ship stabilizing fin both in the regular and irregular waves in time domain simulation. It provides an efficiently new approach to solve the control problem of ship stabilizing fin sys- tem.

关 键 词：PID控制 减摇鳍 二维半理论 AR预报 横摇运动 

分 类 号：U661.4[交通运输工程—船舶及航道工程]