Advanced optimized weather routing for an ocean-going vessel

Kobayashi, Eiichi; Hashimoto, Hirotada; Taniguchi, Yousuke; Yoneda, Shota

doi:10.1109/iain.2015.7352247

Cited by 9 publications

(4 citation statements)

References 4 publications

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“…In order to discuss the operational limitations, we try to assess influence of the operational limitations using a navigation simulation for ocean-going ships (Hashimoto et al, 2016). The navigation simulation model was developed based on a weather-routing one developed by Kobayashi et al (2011Kobayashi et al ( , 2015. However actual route-decision process of ships in severe weather is not clear enough whereas it is one of most important elements for the development of rational operational limitations.…”

Section: Introductionmentioning

confidence: 99%

Analysis of Satellite AIS Data to Derive Weather Judging Criteria for Voyage Route Selection

2017

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The operational limitations are discussed at the IMO as a part of the second generation intact stability criteria. Since it is a first attempt to introduce operational efforts into safety regulations, comprehensive discussions are necessary to realize practically acceptable ones. Therefore this study investigates actual navigation routes of container ships and pure car carriers in the trans-North Pacific Ocean in winter, because they are prone to suffer significant parametric roll which is one of stability failure modes. Firstly, interviews are made to shipmasters who have experiences to have operated the subject ships to identify major elements for route selection in the North Pacific Ocean. Secondly, sufficient number of actual navigation records is collected from Satellite AIS data to derive the weather criteria for the route selection in severe weather condition. Finally, shipmaster's on-board decision-making criteria are discussed by analysing the ship tracking data and weather data.

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Section: Introductionmentioning

confidence: 99%

Analysis of Satellite AIS Data to Derive Weather Judging Criteria for Voyage Route Selection

2017

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“…The downhill simplex method was selected to solve the optimisation problem, while for the calculation of the added resistance and the vertical response at the stern, the radiated energy method in conjunction with strip theory was used. Kobayashi et al (2015) proposed a new advanced weather routing optimisation method . It targeted the minimisation of fuel oil consumption and the energy efficiency operational indicator (EEOI).…”

Section: Literature Reviewmentioning

confidence: 99%

Ship routing optimisation based on forecasted weather data and considering safety criteria

Kytariolou

Themelis

2022

J. Navigation

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A weather routing tool is presented based on forecasted weather data along the route and considering safety aspects. The tool aims to determine the optimal path for the minimisation of the fuel oil consumption, ensuring a safe passage. It is developed in MATLAB and considers detailed ship characteristics. Specifically, ship's motions and fuel oil consumption of the main engine during a potential path are estimated. For the latter, a physics-based model for a specific vessel is developed where tools of different level of detail are utilised to calculate the various resistance components. A speed management strategy along the route is specified as well as safety criteria representing acceptable limits of ship's responses. When the set criteria and constraints have been set, a genetic algorithm is used to find the optimal route by means of ship's heading or by considering both heading and ship's power settings as variables to minimise the fuel oil consumption. The search space of the algorithm lies within a predefined envelop, but still the evolutionary optimisation approach used has no pre-assigned values to any possible candidate waypoint.

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“…Çalışmada yöntem olarak genetik algoritma kullanılmıştır [17].Kobayashi ve diğerleri, okyanus aşırı seyir yapan gemiler için bir rotalama sistemi ortaya koymuşlardır. NCEP servisinin hava raporlarını kullanan bu çalışma Atlantik Okyanusu üzerinde çalışmaktadır ve hesaplama yöntemi olarak Powell metodu kullanılmıştır [18]. Zhu ve diğerleri, modifiye edilmiş Djikstra algoritmasını hesaplama yöntemi olarak kullanan, ECMWF servisinin hava raporlarını kullanan ve Pasifik Okyanusu üzerinde çalışan bir sistem ortaya koymuşlardır [19].…”

Section: öZunclassified

Weather Routing Optimization System for the Purpose of Reducing Fuel Consumption and Navigation Time of Merchant Ships (Aegean Sea Model)

İnan

Baba

2021

Politeknik Dergisi

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Ticari gemilerin, seyirlerini en kısa zamanda gerçekleştirmesi hem yakıt tasarrufu hem de zaman tasarrufu açısından önem taşımaktadır. Gemilerin hızını etkileyen faktörler rüzgâr, dalga ve akıntı yön ve büyüklükleridir. Bu çalışmada, hava ve deniz şartlarına ait tahmin bilgilerini Inmarsat ve Copernicus servislerinden elde ederek, Ege Denizi üzerinde bulunan limanlar arasında yapılabilecek olası seyirler için rota optimizasyonu sağlayabilen bir karar destek sistemi ortaya koyulmuştur. Ortaya konulan sistem, belirlenen başlangıç ve bitiş limanları arasında kullanılması gereken rotayı, deniz ve hava şartlarına göre en uygun şekilde seçebilmektedir. Uygunluk kriteri, seyir süresinin ve yakıt tüketiminin mümkün olan en az değerde olmasıdır. Hesaplamada yöntem olarak CSGA (Cuckoo Search Genetic Algorithm) algoritması kullanılmıştır. Limanlar arasında seyir yapılabilmesi amacıyla kullanılabilecek en kısa yollar hava ve deniz şartları göz ardı edilerek Djikstra algoritması ile hesaplatılmış ve kayıt altına alınmıştır. Hava ve deniz şartları Inmarsat ve Copernicus servislerinden elde edilerek en kısa yol için maliyet hesaplanmış, ardından da CSGA algoritması ile daha optimal bir rotanın bulunup bulunmadığı hesaplatılmıştır. Ege Denizi limanları arasındaki mesafeler uzun olmadığı için sakin hava şartlarında en kısa yol rotasından daha uygun rota veya rotalar bulunamamıştır. Ancak, hava ve deniz şartlarının sert olduğu kış aylarında, sistemin daha uygun alternatif rotalar bulabildiği gözlemlenmiştir.

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Advanced optimized weather routing for an ocean-going vessel

Cited by 9 publications

References 4 publications

Analysis of Satellite AIS Data to Derive Weather Judging Criteria for Voyage Route Selection

Analysis of Satellite AIS Data to Derive Weather Judging Criteria for Voyage Route Selection

Ship routing optimisation based on forecasted weather data and considering safety criteria

Weather Routing Optimization System for the Purpose of Reducing Fuel Consumption and Navigation Time of Merchant Ships (Aegean Sea Model)

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