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    Tytuł:
    Signals parametrization method of sailing vessels
    Autorzy:
    Buszman, K.
    Gloza, I.
    Powiązania:
    https://bibliotekanauki.pl/articles/332764.pdf
    Data publikacji:
    2016
    Wydawca:
    Polskie Towarzystwo Akustyczne
    Tematy:
    hydroacoustic
    pressure
    magnetic
    multi-influence module
    database
    Opis:
    The expansion of maritime transport is directly connected with increased risk of the appearance of unidentified vessels in the approaches to ports, wind farms, and other sensitive places in the water-body. Creating a parameters database of sailing objects, based on recorded dynamic variations of different physical fields with the specified aims of increasing security within the strategic offshore areas.
    Źródło:
    Hydroacoustics; 2016, 19; 27-36
    1642-1817
    Pojawia się w:
    Hydroacoustics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Multi-objective weather routing of sailing vessels
    Autorzy:
    Życzkowski, M.
    Szłapczyński, R.
    Powiązania:
    https://bibliotekanauki.pl/articles/258742.pdf
    Data publikacji:
    2017
    Wydawca:
    Politechnika Gdańska. Wydział Inżynierii Mechanicznej i Okrętownictwa
    Tematy:
    sailing vessels
    weather routing
    weather forecast
    comfort
    penalty
    Opis:
    The paper presents a multi-objective deterministic method of weather routing for sailing vessels. Depending on a particular purpose of sailboat weather routing, the presented method makes it possible to customize the criteria and constraints so as to fit a particular user’s needs. Apart from a typical shortest time criterion, safety and comfort can also be taken into account. Additionally, the method supports dynamic weather data: in its present version short-term, mid-term and long-term term weather forecasts are used during optimization process. In the paper the multi-objective optimization problem is first defined and analysed. Following this, the proposed method solving this problem is described in detail. The method has been implemented as an online SailAssistance application. Some representative examples solutions are presented, emphasizing the effects of applying different criteria or different values of customized parameters.
    Źródło:
    Polish Maritime Research; 2017, 4; 10-17
    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:
    Problems with Modelling the Strength Properties of Sailing Vessels Rigging Ropes
    Problemy modelowania cech wytrzymałościowych lin takielunku jednostek żaglowych
    Autorzy:
    Kozak, J.
    Czaja, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/344179.pdf
    Data publikacji:
    2017
    Wydawca:
    Uniwersytet Morski w Gdyni. Wydawnictwo Uniwersytetu Morskiego w Gdyni
    Tematy:
    running rigging
    sailing vessel
    natural fibre ropes
    soft wire ropes
    synthetic fibre ropes
    olinowanie ruchowe
    żaglowiec
    liny naturalne
    liny stalowe miękkie
    liny syntetyczne
    Opis:
    This article presents the basic parameters of soft ropes: natural fibre ropes, soft wire ropes and synthetic fibre ropes used for running rigging. There are only several materials still used for the production of natural fibre ropes, including cotton, jute, hemp, sisal and manila hemp. The most commonly used soft wire ropes are twisted pair ropes; for smaller diameters there is a 6x19M – FC rope and for larger diameters – 6x37M – FC. There are several types of materials of varied properties and used in different combinations that are utilised for the production of synthetic fibre ropes. Therefore, the parameters of ropes used for the running rigging of staysails, i.e. halyards, downhauls, sheets and tack lines are discussed. Ultra high molecular weight polyethylene (UHMWPE) called dyneema and spectra, or polyester (PES) called diolen, dacron and trevira are most often used for this type of rigging. The problems with modelling the strength properties of synthetic fibre ropes are related with their complex geometry and structure. Multilayered models and the Continuum model are the basic models determining the strength properties of synthetic fibre ropes.
    W niniejszym artykule przedstawiono podstawowe parametry lin miękkich: naturalnych, stalowych miękkich i syntetycznych, wykorzystywanych w olinowaniu ruchomym. Pozostało zaledwie kilka surowców służących do wytwarzania lin z włókien naturalnych, są to m.in.: bawełna, juta, konopie, sizal i manila. Najczęściej stosowanymi linami stalowymi miękkimi są liny dwuzwite, dla średnic mniejszych jest lina typu 6x19M – FC, a dla średnic większych – lina typu 6x37M – FC. Do wytwarzania lin syntetycznych stosuje się kilka rodzajów surowców, charakteryzujących się bardzo zróżnicowanymi właściwościami, dodatkowo występujących w różnych konfiguracjach. W związku z tym przedstawiono parametry lin stosowanych do olinowania ruchomych sztaksli czyli: fałów, kontrafałów, szotów i halsów. Najczęściej do tego typu olinowania wykorzystuje się surowce z polietylenu o ultrawysokiej masie cząsteczkowej (UHMWPE) o nazwie handlowej „dyneema”, „spectra” lub poliestru (PES) o nazwie handlowej „diolen”, „dacron”, „trevira”. Problemy modelowania cech wytrzymałościowych lin syntetycznych wiążą się z ich złożoną geometrią oraz strukturą. Modele wielowarstwowe oraz model Continuum stanowią podstawowe modele określające właściwości wytrzymałościowe lin syntetycznych.
    Źródło:
    Prace Wydziału Nawigacyjnego Akademii Morskiej w Gdyni; 2017, 32; 28-47
    1730-1114
    Pojawia się w:
    Prace Wydziału Nawigacyjnego Akademii Morskiej w Gdyni
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The analysis of possible methods of providing fresh water for sailing vessels based on the example of s/v Dar Młodzieży
    Autorzy:
    Giernalczyk, M.
    Herdzik, P.
    Powiązania:
    https://bibliotekanauki.pl/articles/242535.pdf
    Data publikacji:
    2013
    Wydawca:
    Instytut Techniczny Wojsk Lotniczych
    Tematy:
    sailing vessel
    air conditioning system
    vaporizer
    osmotic desalinator
    Opis:
    In this paper the possibilities of providing fresh water for sailing vessels based on the example of s/v Dar Modziey are presented. Different methods of obtaining fresh water such as rainwater harvesting, replenishing water tanks at harbours, collecting condensed water from air conditioning systems or producing fresh water from seawater by means of desalination equipment were considered. Vacuum vaporizers (heated by fresh water used as a cooling medium of the main propulsion engines) and osmotic desalinators (using the phenomenon of reverse osmosis) were being taken under consideration. Special focus was put on the quality of water obtained; comparing the methods mentioned and pursuing the best solution both in technical and economic terms. The choice of desalinators was preceded by the analysis of quantity and configuration of pumps and membranes that will guarantee optimum performance. Selection of the manufacturer was determined by costs of purchase, costs of operation and the availability of spare parts and consumables. The osmotic desalinator ended up as the final choice of fresh water producing device on s/v Dar Modziey. Excessive water consumption can be satisfied by replenishing supplies at ports. The paper is concluded with comments and suggestions that can be adapted by a ship owner as a solution for the problem of supplying vessels with fresh water.
    Źródło:
    Journal of KONES; 2013, 20, 1; 95-102
    1231-4005
    2354-0133
    Pojawia się w:
    Journal of KONES
    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:
    Sailing vessel routing considering safety zone and penalty time for altering course
    Autorzy:
    Życzkowski, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/116895.pdf
    Data publikacji:
    2017
    Wydawca:
    Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
    Tematy:
    ships manoeuvering
    sailing vessels
    safety zone
    penalty time
    altering course
    weather forecast
    route planning
    path finding
    Opis:
    In this paper we introduce new model for simulation sea vessel routing. Besides a vessel types (polar diagram) and weather forecast, travel security and the number of maneuvers are considered. Based on these data both the minimal travelling costs and the minimal processing time are found for different vessels and different routes. To test our model the applications SailingAssistance wad improved. The obtained results shows that we can obtain quite acceptable results.
    Źródło:
    TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2017, 11, 2; 235-240
    2083-6473
    2083-6481
    Pojawia się w:
    TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Estimation of the vessels sailing resistance in the preliminary analyses
    Autorzy:
    Charchalis, Adam
    Powiązania:
    https://bibliotekanauki.pl/articles/247078.pdf
    Data publikacji:
    2019
    Wydawca:
    Instytut Techniczny Wojsk Lotniczych
    Tematy:
    merchant vessel
    hull dimensions parameters
    hull coefficient
    hull resistance
    hull power of the vessel
    Opis:
    In this article is presented the methodology of calculation of principal parameters of hull a vessel and resistance components. The approximate method is based on the analysis of the results of model tests and surrender tests presented in the literature. Ship owners' preliminary assumptions for new ship consist of deadweight, speed-shipping line and others. This goal needs definition of principal dimensions of a vessel, which are the basis for further calculations of hull’s resistance and evaluation of necessary power of main engine to fulfil shipping requirements. The route and its environment, type of cargo, quantity to be moved, and value of the cargo and port facilities are typical features, which will be considered when evolving the size, speed, and specification of a suitable ship. Specific service requirements will be similarly considered when evolving vessels such as warships, passenger ships or fishing vessels. Selection of main dimensions of vessel is limited by related to seaways or harbours characteristic and limitations rules regarding buoyancy, stability, hull strength, manoeuvring capability, etc. The influence of the main dimensions of the ship and their coefficients of maritime and strength properties of the ship were presented. Moreover, formulas for calculation of the ship's resistance components, such as friction resistance, and wave shape, as well as the results of calculations for different types of ships, for the assumed deadweight and speed of sailing, are presented.
    Źródło:
    Journal of KONES; 2019, 26, 1; 17-22
    1231-4005
    2354-0133
    Pojawia się w:
    Journal of KONES
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The emissions reduction possibility of sulphur compounds of vessels sailing in Emission Control Areas (ECA)
    Autorzy:
    Krakowski, R.
    Powiązania:
    https://bibliotekanauki.pl/articles/133228.pdf
    Data publikacji:
    2017
    Wydawca:
    Polskie Towarzystwo Naukowe Silników Spalinowych
    Tematy:
    environmental protection
    sulfur compounds
    power engine
    marine scrubbers
    shipping
    ochrona środowiska
    związki siarki
    silnik elektryczny
    przewozy morskie
    Opis:
    The article presents legal regulations, together with the characteristics of Emission Control Areas (ECA). It is connected with the new limit sulfur emissions in those areas. In this article the advantages and disadvantages of various solutions, i.e. switching to low sulphur distillates, installing the marine scrubber device and using of liquefied natural gas (LNG) as ship’s main fuel have been considered. Each of these solutions was described in respect of technological review, by the possibility of reducing harmful compound from exhaust gases, to investment costs. In another part of this thesis, there are the calculations of costs of fuel and necessary modifications for a selected passenger-car ferry. Costs were assessed for all of the mentioned solutions. The article was completed conclusions indicating which way is the most cost-effective.
    Źródło:
    Combustion Engines; 2017, 56, 2; 162-166
    2300-9896
    2658-1442
    Pojawia się w:
    Combustion Engines
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Performance analysis of a Medium Frequency offshore Grid for identification of vessels sailing on high density maritime European routes
    Autorzy:
    López, A.
    Gutiérrez, M.
    Ortega, A.
    Puente, C.
    Morales, A.
    Gonzalez, D.
    Díaz, E.
    Powiązania:
    https://bibliotekanauki.pl/articles/259142.pdf
    Data publikacji:
    2017
    Wydawca:
    Politechnika Gdańska. Wydział Inżynierii Mechanicznej i Okrętownictwa
    Tematy:
    ships identification systems
    Grid Method
    traffic control centre
    SITOR
    Opis:
    The paper analyses the performance of an Automatic Vessel Identification System on Medium Frequency (AVISOMEF), which works with the Grid Method (GM) on high density maritime European routes using real data and uniformly distributed data. Compared to other systems, AVISOMEF is a novelty, as it is not a satellite system, nor is it limited by a given coverage distance, in contrast to the Automatic Identification System (AIS), though in exceptional circumstances it leans towards it. To perform the analysis, special simulation software was developed. Moreover, a number of maritime routes along with their traffic density data were selected for the study. For each route, two simulations were performed, the first of which based on the uniform traffic distribution along the route, while the second one made use of real AIS data positioning of vessels sailing on the selected routes. The obtained results for both simulations made the basis for formulating conclusions regarding the capacity of selected routes to support AVISOMEF.
    Źródło:
    Polish Maritime Research; 2017, 4; 18-26
    1233-2585
    Pojawia się w:
    Polish Maritime Research
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
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