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Wyświetlanie 1-15 z 22
Tytuł:
Comparison of ship performance optimization systems and the bon voyage onboard routing system
Autorzy:
Wiśniewski, B.
Szymański, M.
Powiązania:
https://bibliotekanauki.pl/articles/135531.pdf
Data publikacji:
2016
Wydawca:
Akademia Morska w Szczecinie. Wydawnictwo AMSz
Tematy:
ocean routes programming
SPOS system
Bon Voyage system
ocean routes optimization
safety of navigation
weather navigation
weather routing
Opis:
A significant increase in demand for navigation support systems called Onboard Routing Systems (ORS) can be observed in the World’s merchant fleet. ORS is a navigation-support system that enables route programming to warn of dangers and navigation constraints and determine the required route-safety level directly onboard the vessel. In this article, an attempt to analyze and compare two ORS systems has been made: the Ship Performance Optimization System (SPOS), by the Meteo Consult Group; and the Bon Voyage system by Applied Weather Technologies (AWT). Individual items, methods, and criteria of both systems for optimization and weather forecasting models utilized have been compared. Particular attention has been paid to the usefulness of the systems regarding the problem of identification and avoidance of hazards such as tropical cyclones and wave resonance. Ergonomics of both systems has also been compared.
Źródło:
Zeszyty Naukowe Akademii Morskiej w Szczecinie; 2016, 47 (119); 106-115
1733-8670
2392-0378
Pojawia się w:
Zeszyty Naukowe Akademii Morskiej w Szczecinie
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Programowanie tras statków na oceanach
Ship Ocean Route Programming
Autorzy:
Wiśniewski, B.
Powiązania:
https://bibliotekanauki.pl/articles/359944.pdf
Data publikacji:
2004
Wydawca:
Akademia Morska w Szczecinie. Wydawnictwo AMSz
Tematy:
transport morski
nawigacja pogodowa
optymalizacja trasy
sea transport
weather navigation
route optimization
Opis:
Zaprezentowano problematykę programowania tras statków na oceanach. Przedstawiono metody obliczeń tras minimalno-czasowych i przykładowe rezultaty rekomendacji tras z ośrodka lądowego armatora Polska Żegluga Morska.
This article deals with the problem of ship ocean route programming. Methods of computing minimum-time routes and examples of route recommendations by the Polish Steamship Company land-based center are presented.
Źródło:
Zeszyty Naukowe Akademii Morskiej w Szczecinie; 2004, 2 (74); 395-405
1733-8670
2392-0378
Pojawia się w:
Zeszyty Naukowe Akademii Morskiej w Szczecinie
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Avoidance of tropical cyclones using the "CYKLON II" program
Omijanie cyklonów tropikalnych z wykorzystaniem programu "CYKLON II"
Autorzy:
Wiśniewski, B.
Kaczmarek, P.
Powiązania:
https://bibliotekanauki.pl/articles/360409.pdf
Data publikacji:
2010
Wydawca:
Akademia Morska w Szczecinie. Wydawnictwo AMSz
Tematy:
nawigacja pogodowa
omijanie cyklonów
program obliczeniowy
weather navigation
avoidance of cyclone
computational program
Opis:
This paper presents the methodology of constructing a collision avoidance plot "ship – tropical cyclone". The computational algorithm and its testing results are presented. The tests make use of information from the voyage of the ship "Diana" and weather reports and forecasts on the real tropical cyclone Bill, which moved in August 2009 across the North Atlantic.
Zaprezentowano metodykę konstruowania nakresu antykolizyjnego statek - cyklon tropikalny. Opisano algorytm działania programu obliczeniowego i podano wyniki jego testowania. Wykorzystano informacje z podróży statku "Diana" i informacje z komunikatów o rzeczywistym cyklonie tropikalnym Bill przemieszczającym się w sierpniu 2009 r. przez Północny Atlantyk.
Źródło:
Zeszyty Naukowe Akademii Morskiej w Szczecinie; 2010, 22 (94); 71-77
1733-8670
2392-0378
Pojawia się w:
Zeszyty Naukowe Akademii Morskiej w Szczecinie
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Tropical cyclones avoidance in ocean navigation - safety of navigation and some economical aspects
Autorzy:
Szymański, M.
Wiśniewski, B.
Powiązania:
https://bibliotekanauki.pl/articles/117369.pdf
Data publikacji:
2018
Wydawca:
Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
Tematy:
safety at aea
tropical cyclones
ocean navigation
tropical cyclones avoidance
safety of navigation
economical aspect
minimum fuel consumption
weather navigation
Opis:
Based upon the true voyages various methods of avoidance maneuver determination in ship - cyclone encounter situations were presented. The goal was to find the economically optimal solution (minimum fuel consumption, maintaining the voyage schedule) while at the same time not to exceed an acceptable weather risk level.
Źródło:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2018, 12, 1; 57-68
2083-6473
2083-6481
Pojawia się w:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
On the Fuel Saving Operation for Coastal Merchant Ships using Weather Routing
Autorzy:
Takashima, K.
Mezaoui, B.
Shoji, R.
Powiązania:
https://bibliotekanauki.pl/articles/116404.pdf
Data publikacji:
2009
Wydawca:
Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
Tematy:
Weather Routing
route planning
Weather Navigation
Coastal Merchant Ship
Fuel Saving Operation
Dijkstra’s Algorithm
Simulation Study
Fuel Consumption
Opis:
It is well known that Weather Routing is one of the effective ship operation methods to reduce fuel consumption and many studies have been conducted to develop the effective calculation methods. However, most studies were performed focusing on the ocean going ships, and there were few studies made for coastal ships. The authors propose a minimum fuel route calculation method for coastal ships that use the precise forecasted environmental data and the propulsion performance data of the ship on actual seas. In the proposed method, we use the Dijkstra’s algorithm to calculate an optimum minimum fuel route suitable for coastal ships. Simulation study was carried out to evaluate the effectiveness of the proposed method using two coastal ships. As the result of study, the authors confirmed that the proposed calculation method is effective for fuel consumption reduction and is applicable for the operation of coastal merchant ships.
Źródło:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2009, 3, 4; 401-406
2083-6473
2083-6481
Pojawia się w:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Multicriteria Optimisation in Weather Routing
Autorzy:
Szłapczynska, J.
Smierzchalski, R.
Powiązania:
https://bibliotekanauki.pl/articles/115971.pdf
Data publikacji:
2009
Wydawca:
Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
Tematy:
Multicriteria Optimisation
Weather Routing
route planning
Weather Navigation
Fuzzy TOPSIS
Strength Pareto Evolutionary Algorithm (SPEA)
Multicriteria Ranking Method
Isochrone Route
Opis:
The paper presents a new weather routing solution fully supporting multicriteria optimisation process of route finding. The solution incorporates two multicriteria optimisation methods, namely multicriteria evolutionary algorithm (SPEA) and multicriteria ranking method (Fuzzy TOPSIS). The paper focuses on presenting the proposed multicriteria evolutionary weather routing algorithm (MEWRA). Furthermore, it includes some experiment results together with a short description of the assumed ship model.
Źródło:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2009, 3, 4; 393-400
2083-6473
2083-6481
Pojawia się w:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Application of the 1-2-3 Rule for Calculations of a Vessel’s Route Using Evolutionary Algorithms
Autorzy:
Wiśniewski, B.
Medyna, P.
Chomski, J.
Powiązania:
https://bibliotekanauki.pl/articles/116117.pdf
Data publikacji:
2009
Wydawca:
Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
Tematy:
tropical cyclones avoidance
Fuzzy Domain
Weather Navigation
Tropical Cyclones
1-2-3 Rule
vessels route
evolutionary algorithms
route planning
Opis:
An example is shown of the 1-2-3 rule application for calculations to determine a route avoiding tropical cyclones. The dynamic programming used is based on regularly received weather reports containing present and forecast data on tropical cyclones. The results were compared with the post factum calculated route which utilized only weather analyses concerning the relevant moments of the voyage and with routes calculated using the cyclone fuzzy domain as an area dangerous to navigation. The calculations were made in the evolutionary algorithms environment.
Źródło:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2009, 3, 2; 143-146
2083-6473
2083-6481
Pojawia się w:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Numerical Simulation of Nonlinear Water Wave Problems
Autorzy:
Lo, D. C.
Hu, Jia-Shen
Lin, I-Fu
Powiązania:
https://bibliotekanauki.pl/articles/116613.pdf
Data publikacji:
2008
Wydawca:
Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
Tematy:
Weather Navigation
Numerical Simulation
Oceanography
Nonlinear Water Wave Problem
Navier-Stokes Equations
Solitary Waves
Free-Surface Flow Problem
Streamfunction Vorticity Formulation
Opis:
The main purpose of present paper aims at the establishment of a numerical model for solving the nonlinear water wave problems. The model is based on the Navier-Stokes equations with the consideration of a free-surface through the streamfunction-vorticity formulation. The main advantage of the streamfunction-vorticity formulation is that pressure field can be eliminated from the Navier-Stokes equations. To demonstrate the model feasibility, the present studies are first concentrated on problems including the collision of two solitary waves with different amplitudes, and the overtaking collision of two solitary waves. Then, the model is also applied to a solitary wave passes over the submerged obstacle in a viscous fluid. Finally, the application of present study is also to simulate the generation of solitary waves by underwater moving object. All examples give very promising results, those applications reveal that present formulation is a very powerful approach to simulate the fully nonlinear water wave problems.
Źródło:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2008, 2, 2; 137-142
2083-6473
2083-6481
Pojawia się w:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Structure of the states of weather in Świnoujście in decades 1971–1980 and 2001–2010
Autorzy:
Ferdynus, J.
Powiązania:
https://bibliotekanauki.pl/articles/359050.pdf
Data publikacji:
2012
Wydawca:
Akademia Morska w Szczecinie. Wydawnictwo AMSz
Tematy:
complex climatology
"favorable" and "unfavorable" weather for port operations and navigation
Opis:
Comprehensive climatology allows to specify not only the structure of the weather conditions, meaning the frequency of particular individuals, but also frequency of “favorable” or “unfavorable” weather, for example, for shipping and port operation. Comparison of “favorable” or “unfavorable” frequency of the weather types in Świnoujście have revealed that in the first decade of the twenty-first century, there was less of the latter than in the years 1971–1980. “Unfavorable” weather are primarily associated with the influx of air masses from northern and eastern sector, although there are among them also the western sector.
Źródło:
Zeszyty Naukowe Akademii Morskiej w Szczecinie; 2012, 32 (104) z. 2; 24-28
1733-8670
2392-0378
Pojawia się w:
Zeszyty Naukowe Akademii Morskiej w Szczecinie
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The degree of implementation of SPOS on Polish Steamship Company’s ships
Autorzy:
Wiśniewski, B.
Gibuła, M
Piotrowski, T.
Wolski, T.
Powiązania:
https://bibliotekanauki.pl/articles/906238.pdf
Data publikacji:
2014
Wydawca:
Akademia Morska w Szczecinie. Wydawnictwo AMSz
Tematy:
SPOS
weather forecasting
forward speed of cyclones (Vc)
routs (KDC)
extent of storm winds
wind direction
weather systems supporting maritime navigation
Opis:
The article deals with the problem of ship’s ocean route programming. For masters during planning the ocean most convenient route lots of factors are very important such as among others: current, forecast weather, criteria and restriction, speed and fuel characteristic of ships on waves and wind and so on. These elements when are properly identify and adopted allow the master for making an effective ship’s course and speed decision. The aim of research is to show how the SPOS system is treated during the ocean’s ship route. 39 captains of PŻM ships during the year of 2014 answered on 9 questions of questionnaire which were concerned the degree of utilization of SPOS (Ship Performance Optimization System) during the operation of their ships. All the masters confirmed that they use of SPOS system as a browser weather, while only 25.6% of masters confirmed that they also use the SPOS system as a tool in planning the route. They also repeatedly pointed out, however, that SPOS has some of limitations such as not limited information about ice cover or tropical cyclones, etc. In conclusion, it can be assess that the SPOS system is satisfactorily used on ships as a browser forecast, but does not work well in planning the trip by navigators.
Źródło:
Zeszyty Naukowe Akademii Morskiej w Szczecinie; 2014, 40 (112); 113-117
1733-8670
2392-0378
Pojawia się w:
Zeszyty Naukowe Akademii Morskiej w Szczecinie
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Interaction of Harsh Weather Operation and Collision Avoidance in Autonomous Navigation
Autorzy:
Burmeister, H.-C.
Bruhn, W. C.
Walther, L.
Powiązania:
https://bibliotekanauki.pl/articles/116663.pdf
Data publikacji:
2015
Wydawca:
Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
Tematy:
Safety of Navigation
collision avoidance
autonomous navigation
harsh weather operation
COLREGs
weather routeing
maritime unmanned navigation
Opis:
Taking into account the autonomous navigation system design and today’s state of the art navigation with regards to weather and collision avoidance this paper presents the architecture of the integrated approach, its links to existing rules and regulations and the test scenarios. These demonstrate how safe and efficient navigation of autonomous vessels can be achieved by showing the module's interaction and validating the feasibility of the approach. These analyses will be based on historical traffic data sets as well as simulation results.
Źródło:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2015, 9, 1; 31-40
2083-6473
2083-6481
Pojawia się w:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Method of the assessment of the river craft technical condition on the basis of the microstatistics
Autorzy:
Arefyev, I.B.
Volovik, А. V.
Klavdiev, A.
Powiązania:
https://bibliotekanauki.pl/articles/359830.pdf
Data publikacji:
2014
Wydawca:
Akademia Morska w Szczecinie. Wydawnictwo AMSz
Tematy:
reliability
navigation
weather
river boat
operation
Opis:
One of the major problems of transport systems is the movement organization without catastrophes. It is particularly important for the rolling stock of the river fleet. In this paper, the authors propose the evaluation method of the technical condition of inland waterway vessels on the statistics of accidents and disasters of previous navigation. The method is based on the statistics for the “small samples”.
Źródło:
Zeszyty Naukowe Akademii Morskiej w Szczecinie; 2014, 37 (109); 5-9
1733-8670
2392-0378
Pojawia się w:
Zeszyty Naukowe Akademii Morskiej w Szczecinie
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Evolutionary multi–objective weather routing of sailboats
Autorzy:
Sobecka, Ewa
Szłapczyński, Rafał
Życzkowski, Marcin
Powiązania:
https://bibliotekanauki.pl/articles/1585076.pdf
Data publikacji:
2020
Wydawca:
Politechnika Gdańska. Wydział Inżynierii Mechanicznej i Okrętownictwa
Tematy:
sailing vessels
weather routing
evolutionary multi-objective optimization
weather forecasts
navigation
Opis:
The paper presents a multi-objective method, which optimises the route of a sailboat. The presented method makes use of an evolutionary multi-objective (EMO) algorithm, which performs the optimisation according to three objective functions: total passage time, a sum of all course alterations made during the voyage and the average angle of heel. The last two of the objective functions reflect the navigator’s and passenger’s comfort, which may decrease with multiple turns or when experiencing an excessive heel angle for a long time. The optimisation process takes into account static bathymetry-related constraints as well as dynamic constraints related to the sailboat’s safety in changing wind and wave conditions. The method makes use of all of the above and finally returns an approximated Pareto set containing non-dominated solutions to the optimisation problem. The developed method has been implemented as a simulation application. The paper includes selected simulation results followed by their discussion.
Źródło:
Polish Maritime Research; 2020, 3; 130-139
1233-2585
Pojawia się w:
Polish Maritime Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Multi-objective weather routing of sailboats considering wave resistance
Autorzy:
Życzkowski, M.
Krata, P.
Szłapczyński, R.
Powiązania:
https://bibliotekanauki.pl/articles/260441.pdf
Data publikacji:
2018
Wydawca:
Politechnika Gdańska. Wydział Inżynierii Mechanicznej i Okrętownictwa
Tematy:
sailing vessels
weather routing
waves
navigation
resistance
Opis:
The article presents a method to determine the route of a sailing vessel with the aid of deterministic algorithms. The method assumes that the area in which the route is to be determined is limited and the basic input data comprise the wind vector and the speed characteristic of the vessel. Compared to previous works of the authors, the present article additionally takes into account the effect of sea waves with the resultant resistance increase on the vessel speed. This approach brings the proposed model closer to real behaviour of a sailing vessel. The result returned by the method is the sailing route, optimised based on the multi-criteria objective function. Along with the time criterion, this function also takes into account comfort of voyage and the number of performed turns. The developed method has been implemented as simulation application SaillingAssistance and experimentally verified.
Źródło:
Polish Maritime Research; 2018, 1; 4-12
1233-2585
Pojawia się w:
Polish Maritime Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The effect of space weather on maritime aids-to-navigation service provision
Autorzy:
Grant, A.
Shaw, G.
Ward, N.
Powiązania:
https://bibliotekanauki.pl/articles/320917.pdf
Data publikacji:
2012
Wydawca:
Polskie Forum Nawigacyjne
Tematy:
marine aids to navigation
space weather
solar activity
Opis:
The General Lighthouse Authorities of the United Kingdom and Ireland (GLA) provide marine Aids-to-Navigation (AtoNs) for the benefit and safety of all mariners within their waters. These AtoNs include traditional lighthouses, buoys and various radionavigation systems. It is recognised that GPS, or more generally Global Navigation Satellite Systems (GNSS), have become the primary means of obtaining Position, Navigation and Timing (PNT) information at sea. Mariners may have come to believe that GPS is infallible, yet it is known to be vulnerable to solar activity, interference and system failures. The Sun continuously releases random bursts of energy and highly charged particles. The impact of these emissions on the Earth is known as space weather. Bursts of electromagnetic energy can result in radio blackouts; bursts of high energy particles can increase ionising radiation and affect space craft performance; and bursts of magnetised plasma can result in the degradation and potential loss of radionavigation signals on Earth. The amount of solar activity is linked with the natural sunspot cycle, which shows the number of sunspots peak approximately every 11 years, with the next peak due in 2013. Sunspots occur almost continuously, but normally give rise to weak solar events that generally go by unnoticed. However significant storms can occur at any time and as we approach peak activity, the number of space weather events will increase. AtoNs generally report their position using radio systems, whether through the Automatic Identification System (AIS), public networks or dedicated links; and often use GNSS to calculate their position and to obtain timing information. Mariners use GNSS for PNT information; with this information integrated into many different bridge systems. Powerful solar storms can affect GNSS performance and the reception of their signals, which may lead to different correlated events, both on and off the ship. During very extreme and very rare storms, national power systems may be switched off to protect the infrastructure which would clearly affect those services relying on mains power without backup. This paper reports the output of a study into the potential effects of space weather on GLA AtoN service provision and presents mitigating actions, where appropriate. The outcome of this study will help the GLA to continue to provide the highest level of AtoN availability, helping to ensure the safety of all mariners.
Źródło:
Annual of Navigation; 2012, No. 19, part 1; 49-66
1640-8632
Pojawia się w:
Annual of Navigation
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-15 z 22

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