An Application of Collision Avoidance System for a Container Ship with Real-Time Simulator

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Project title

Code/計畫編號

MOST104-2221-E019-044

Translated Name/計畫中文名

貨櫃船操縱避碰之真時模擬研究

Project Coordinator/計畫主持人

Chih-Chung Fang

Funding Organization/主管機關

National Science and Technology Council

Department/Unit

Department of Systems Engineering and Naval Architecture

Website

https://www.grb.gov.tw/search/planDetail?id=11570102

Year

2015

Start date/計畫起

01-08-2015

Expected Completion/計畫迄

01-07-2016

Bugetid/研究經費

492千元

ResearchField/研究領域

機械工程
交通運輸
資訊科學--軟體

本計畫研究重點在於應用真時操船模擬機，建構一套簡化、快速與實用之操船避碰輔助系統，並以真時進港操演，驗證操船避碰輔助系統之可行性及效率。船舶操縱數值模型採用日本 (MMG,Mathematical Modeling Group)理論，測試船舶選用一艘8000TEU級貨櫃船進行操縱運動數值模擬。應用Nomoto所提出的船舶操縱二階線性操縱反應式，探討船舶在平靜海域之定迴旋運動反應、船舶迴旋角速度與迴旋性指數(K值)、延遲性指數(T1、T2、T3值)之關係。並以Nomoto二階線性操縱反應式為基礎，建立能預測不同初始船速與大舵角定迴旋運動下初期迴旋角速度之數值模型。為驗證迴歸模型之實用性，本研究規劃簡單、複雜避碰方案及8000TEU級大型貨櫃船進港靠泊高雄港第二港口真時模擬，將Nomoto二階迴歸模型所計算之迴旋角速度運動反應與UMS數值模擬之結果進行比較。最後建立一套船舶操縱避碰系統，提供操船人員在面臨避碰決策時，有一確切的避碰操舵角度。模擬結果分析發現: 船舶操縱避碰系統確實可提供操船人員正確的避碰建議舵角，使船舶更加安全且有效率。 A real-time ship simulator, UMS, which is based on the 6-D MMG model will be used for the sea trial simulation of the 8000TEU container ship to investigate the manoeuvring performance. Based on the numerical simulations of the turning motion for the 8000TEU container ship with varied forward speeds and rudder angles, the second-order model proposed by Nomoto (1956) has been used to investigate the turning characteristics of the 8000TEU container ship in this study. The manoeuvring indices, K、T1、T2、T3 , can be obtained from the numerical simulations by using the Newton-Raphson Method and be regressed with varied forward speeds and rudder angles. In order to clarify the validity of the regression model, the turning rate histories of the 8000TEU container ship with different forward speeds and rudder angles obtained from the UMS have been compared with the Nomoto’s second-order model. This simplified manoeuvring model based on the database of manoeuvring parameters is very effective to find the helm angle for ship collision avoidance at seas. Finally, the manoeuvring model will be used to find the optimal helm angle of the 8000TEU container ship entered Kaohsiung second harbour and the comparison results are shown with some discussions in this report.

Keyword(s)

真時操船模擬機
貨櫃船
Nomoto 二階線性操縱反應式
迴旋特性
船舶避碰
Real-time simulator
Container Ship
Nomoto’s second-order model
Turning characteristics
ship collision avoidance

DSpace CRIS

An Application of Collision Avoidance System for a Container Ship with Real-Time Simulator

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