干扰力作用下船舶航行动力学特性数学建模研究

Study on the mathematical modeling of the dynamic characteristics of the ship under the influence of the disturbance force

船舶航行过程中受到的干扰载荷主要包括风载荷、波浪力、抛锚外载荷等。为了提高船舶航行安全性,本文对船舶在外界干扰载荷作用下的动力学特性进行深入研究,基于拉格朗日动力学理论建立船舶在干扰载荷作用下的航行动力学模型。基于Matlab软件与船舶航行动力学模型,计算得出船舶航行动力学响应。结果表明:本文建立的动力学模型能够有效预测船舶动力学响应,可为工程设计提供参考。

In the course of the ship navigation,the main interference loads include wind wave,wave force,anchor load,etc. In order to improve the safety of ship navigation,this paper deeply studies the dynamic characteristics of the ship under the influence of external disturbance,and the dynamic model of the ship under the influence of disturbance load is established based on the Lagrange dynamics theory.Based on the Matlab software and the ship navigation dynamics model,the dynamic response of the ship is calculated. The results show that the dynamic model established in this paper can effectively predict the dynamic response of the ship,which can provide reference for engineering design.