基于方向谱的船舶摇荡运动仿真系统研究  

Study on Vessel Swaying Motion Simulation System Based on Direction Spectrum

作　　者：黄博[1] 姚玉峰[1] 苏衍宇[1] 路士州[1] 

机构地区：[1]哈尔滨工业大学(威海)船舶工程学院,威海264209

出　　处：《系统仿真学报》2010年第4期1051-1054,共4页Journal of System Simulation

基　　金：国家863重大专项(2006AA040103)

摘　　要：船舶摇荡运动数据对于船舶设计与航行安全性分析十分重要,船舶模型在不同海况下的摇荡仿真可指导工程师优化船舶设计。构建了一种基于方向谱的船舶摇荡仿真方法。该方法采用方向谱描述海浪,由切片法获得船舶的响应振幅算子(RAO),基于线性假设和叠加原理采用频谱分析法计算获得船舶摇荡运动频域解和时域解。基于DIRECTX和VC++建立了船舶摇荡运动仿真系统,能仿真工作于不同风浪环境下的船舶摇荡运动响应,仿真结果与实测结果的频谱特征一致,并实现了船舶摇荡运动的仿真结果可视化,可综合反映船舶的航行状态。Vessel swaying motion data are very important to ship design and navigation safety analysis,and vessel swaying motion simulation results under different sea-conditions could provide guidance for engineer to optimize vessel design. A method of vessel swaying motion simulation based on directional spectrum was constructed. In this method,ocean waves were described by directional spectrum,response amplitude operators （RAO） of vessels were obtained by strip theory,and based on linear assumption and superposition principle,simulation results in both frequency and time domain were obtained by spectrum analysis. A vessel swaying motion simulation system was developed based on DirectX and VC＋＋. The system could simulate responses of vessels under different sea-conditions. Simulation results are close to actual testing data,both exhibiting the similar spectrum features. The system could visualize simulation result and illustrate the operational configuration comprehensively.

关 键 词：船舶摇荡 海浪谱 方向谱 仿真系统 

分 类 号：TP391.9[自动化与计算机技术—计算机应用技术] U675.51[自动化与计算机技术—计算机科学与技术]