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    Wyświetlanie 1-8 z 8
    Tytuł:
    Investigation of the side wind effects on the passenger ferry in rolling motion conditions
    Autorzy:
    Jurczak, W.
    Kaup, M.
    Kaup, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/243352.pdf
    Data publikacji:
    2016
    Wydawca:
    Instytut Techniczny Wojsk Lotniczych
    Tematy:
    wind forces
    passenger ferry
    CFD analysis
    Opis:
    The article presents the investigation results of selected effects of the side wind on the passenger ferry in sea condition. The computational fluid dynamic (CFD) analysis has been carried out in order to calculate the forces and moments acting on the ship superstructure during rolling caused by waves. The performed analysis shows the impact of rolling amplitudes and periods on results. The use of CFD method allows calculating the vertical centre of pressure with various rolling parameters. Numerical analysis has been performed for real size ship model in transient condition. The main object of the research is to define the influence of the wind dumping effect on wave rolling motions. Additional wind dumping effect (besides of other effects) is intending to use in response amplitude operator (RAO) calculations (next part of researches). It is possible that use of additional wind dumping effect will reduce the rolling amplitudes, and consequently reduce ship accelerations due to rolling motions. Reduction of accelerations (especially horizontal), should decrease the requirements due to number of cargo lashes/belts equipment and minimize the lashing time. From other side it should shorten required harbour time and reduce the ship speed, what is the best way to save the fuel.
    Źródło:
    Journal of KONES; 2016, 23, 3; 241-248
    1231-4005
    2354-0133
    Pojawia się w:
    Journal of KONES
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Projekt małego promu pasażerskiego z napędem hybrydowym – koncepcja napędu i wybrane problemy gospodarowania energią
    Autorzy:
    Kunicka, M.
    Litwin, W.
    Powiązania:
    https://bibliotekanauki.pl/articles/304954.pdf
    Data publikacji:
    2017
    Wydawca:
    Wydawnictwo Druk-Art
    Tematy:
    prom pasażerski
    napęd hybrydowy
    gospodarka energią
    passenger ferry
    hybrid drive
    energy management
    Opis:
    Nowoczesne i ekologiczne układy napędowe zyskują coraz większą popularność. Ze względu na wzrost świadomości społeczeństwa oraz restrykcyjne przepisy odnośnie ochrony środowiska w najbliższych latach konwencjonalne układy napędowe mogą nie zostać dopuszczone do dalszej eksploatacji. Dobór alternatywnego rozwiązania jest zależny od wielu czynników, jak na przykład od rodzaju akwenu, po którym porusza się jednostka pływająca, jej przeznaczenia, autonomiczności czy stylu pływania. Dla małego promu pasażerskiego, poruszającego się w wąskim kanale wodnym, można wybrać jedno z nowoczesnych rozwiązań, jakim jest zastosowanie napędu hybrydowego szeregowego. Poprzez badania oporowe przeprowadzone na basenie modelowym, możliwe jest również dobranie korzystnej strategii pływania, pozwalającej na ograniczenie zużycia energii, a tym samym poniesionych kosztów.
    Modern and eco-friendly propulsion systems are gaining more and more popularity. Due to the increase of public awareness and stringent environmental regulations, classic, conventional propulsion systems may not be allowed to use. Choosing another solution depends on many different factors, such as kind and size of water area, ship’s autonomy/destination or movement strategy. For a small inland ferry, it’s possible to choose one of the modern solutions, which is serial hybrid propulsion. Also through a research based on a ship’s resistance (hydromechanics), it is possible to select profitable movement strategy that causes decrease in costs.
    Źródło:
    Napędy i Sterowanie; 2017, 19, 10; 124-128
    1507-7764
    Pojawia się w:
    Napędy i Sterowanie
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Wind affecting berthing operations
    Autorzy:
    Kløvning, E. M.
    Powiązania:
    https://bibliotekanauki.pl/articles/1841579.pdf
    Data publikacji:
    2020
    Wydawca:
    Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
    Tematy:
    berthing operations
    wind impact
    car passenger ferry
    wind parameters
    wind force
    berthing in wind
    effect of wind
    optimization of operations
    Opis:
    Almost every voyage culminates in a manoeuvre to berth the ship safely along a quay or wharf. During this phase a ship is affected by a number of factors, one of them being wind. This paper seeks to understand how wind affect a ship in regards of power consumption during berthing. A field study was conducted on a car passenger ferry, where every approach in one harbour was logged and analysed over a period of four months. The goal was to provide greater knowledge about energy usage and the study presents several interesting findings. It is estimated that power consumption is stable when the median wind speed is less than 4 m/s. Stronger winds have a significant effect on power consumption, e.g 17 m/s gives an 106,31% increase from calm conditions. Furthermore there is not discovered any correlation between consumption and wind direction in this study.
    Źródło:
    TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2020, 14, 3; 721-725
    2083-6473
    2083-6481
    Pojawia się w:
    TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Influence analysis of changes of design parameters of passenger-car ferries on their selected sea-keeping qualities
    Autorzy:
    Cepowski, T.
    Powiązania:
    https://bibliotekanauki.pl/articles/259447.pdf
    Data publikacji:
    2010
    Wydawca:
    Politechnika Gdańska. Wydział Inżynierii Mechanicznej i Okrętownictwa
    Tematy:
    passenger-car ferry
    design guidelines
    preliminary design stage
    sea-keeping qualities
    rolling
    sea-sickness (motion-sickness) index
    vertical accelerations
    ateral accelerations
    ship main dimensions
    Opis:
    The main scientific aim of this research was to elaborate design guidelines which could make it possible to improve sea-keeping qualities of passenger-car ferries. The searchedfor design guidelines were prepared in the form of regression functions as well as artificial neural networks on the basis of the results obtained from calculations with the use of numerical methods based on the theory of planar flow around a body. The guidelines make it possible to predict ship roll, sea-sickness index, lateral and vertical accelerations on the basis of quantities available in the preliminary stage of ship design.
    Źródło:
    Polish Maritime Research; 2010, 1; 25-32
    1233-2585
    Pojawia się w:
    Polish Maritime Research
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Współczesne tendencje w promowej żegludze pasażerskiej
    Modern trends in ferry passenger shipping
    Autorzy:
    Kaczerska, Dominika
    Kaczerski, Krystian
    Powiązania:
    https://bibliotekanauki.pl/articles/2146723.pdf
    Data publikacji:
    2021
    Wydawca:
    Stowarzyszenie Inżynierów i Techników Komunikacji Rzeczpospolitej Polskiej
    Tematy:
    żegluga promowa
    żegluga pasażerska
    ro-pax
    ferry shipping
    passenger shipping
    Opis:
    W artykule przedstawiono współczesne tendencje występujące na rynku promowych przewozów pasażerskich oraz pasażersko- towarowych. Na przestrzeni ostatnich 10 lat segment żeglugi promowej nieustannie się rozwijał, jednak sytuacja ta uległa zmianie podczas trwania pandemii koronawirusa. W związku z wprowadzeniem przez Międzynarodową Organizację Morską (IMO – International Maritime Organization) bardziej restrykcyjnych regulacji prawnych dotyczących ograniczenia poziomu zanieczyszczeń ze statków oraz wdrażaniem koncepcji zrównoważonego rozwoju na rynek żeglugi promowej dostarczanych jest coraz więcej innowacyjnych i proekologicznych jednostek pasażersko-towarowych, tzw. ro-pax i szybkich, określanych jako high-speed. Region Morza Bałtyckiego i Morza Północnego został uznany jako Obszar Kontroli Emisji Tlenków Siarki (SECA – Sulphur Emission Control Area) i Azotu (NECA – NO Emission Control Area). Dopuszczalne limity emisji SOx i NOx były coraz bardziej ograniczane, przez co jednostki eksploatowane w tym Regionie należało wyposażyć w systemy oczyszczania spalin lub alternatywne źródła zasilania. W tym Regionie żegluga promowa jest bardzo dobrze rozwinięta ze względu na ukształtowanie geograficzne terenu i występowanie wielu wysp. Celem artykułu jest analiza i identyfikacja tendencji na rynku promowych przewozów pasażerskich oraz pasażersko-towarowych.
    This article presents contemporary trends in the passenger and passenger-freight ferry transport market. The ferry segment has grown steadily over the past 10 years, but this has changed during the coronavirus pandemic. In connection with the introduction by the International Maritime Organization (IMO) of more restrictive legal regulations on reducing the level of pollution from ships and the implementation of the concept of sustainable development, more and more innovative and environmentally friendly passenger and cargo units are delivered to the ferry market, like so-called ropax and fast, referred to as high-speed. The Baltic Sea and North Sea Region has been recognized as a Sulfur Emission Control Area (SECA) and Nitrogen (NECA – NO Emission Control Area). The permissible SOx and NOx emission limits were increasingly restricted, so the units operated in this Region had to be equipped with exhaust gas cleaning systems or alternative power sources. In this Region, ferry services are very well developed due to the geographical conditions and location of many islands. The aim of the article is to analyze and identify trends in the passenger and passengerfreight ferry transport market.
    Źródło:
    Transport Miejski i Regionalny; 2021, 9; 7--11
    1732-5153
    Pojawia się w:
    Transport Miejski i Regionalny
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Selected operational limitations in the operation of passenger and cargo ships under SOLAS Convention (1974)
    Autorzy:
    Stępień, Julianna
    Pilarska, Malwina
    Powiązania:
    https://bibliotekanauki.pl/articles/1818898.pdf
    Data publikacji:
    2021
    Wydawca:
    Akademia Morska w Szczecinie. Wydawnictwo AMSz
    Tematy:
    SOLAS Convention
    passenger ships
    ferry safety
    life saving appliances
    on board ships
    maritime safety
    mechanical propulsions
    Opis:
    Presented are regulations concerning the operation of passenger ships (with particular emphasis on Polish ferries) designed to increase maritime safety the SOLAS Convention, established in 1974 and codified in 2002, codifies these regulations, and the International Maritime Organization mandates additional regulations, created in response to a rapidly increasing number of maritime disasters. The analyses described herein were based on restrictions established for the “Jan Śniadecki” and “Mikołaj Kopernik” ferries. Safety of ro-ro units, which also typically have a significant number of people on board, was also analyzed. Also included in the study were ship operational- limitation characteristics with respect to structure, unsinkability, and stability of machinery and electrical equipment, fire protection, operational requirements, and rescue measures and devices, along with their purpuroses. Safety management consists of taking appropriate actions to prevent or minimize the effects of an accident or a disaster and is assessed on the basis of calculations and experience gleaned from analogous cases. Safety management can proceed if a problem has been thoroughly assessed. The potential risk of negative consequences with respect to the safety of the transport process as a whole must be considered, and the safety of the whole must not be risked for that of a particular part of it. A safety management decision can be made when its necessity is not in doubt. A problem is assumed to have only one solution. The effectiveness of the previously used method should be carefully assessed before proceeding to the next method. Security management is not easy and requires much professional knowledge and experience.
    Źródło:
    Zeszyty Naukowe Akademii Morskiej w Szczecinie; 2021, 65 (137); 21-26
    1733-8670
    2392-0378
    Pojawia się w:
    Zeszyty Naukowe Akademii Morskiej w Szczecinie
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The influence of external environment to the ferry lines and marine passenger terminals
    Autorzy:
    Krile, Srećko
    Maiorov, Nikolai
    Powiązania:
    https://bibliotekanauki.pl/articles/1841149.pdf
    Data publikacji:
    2020
    Wydawca:
    Politechnika Śląska. Wydawnictwo Politechniki Śląskiej
    Tematy:
    marine transport processes
    passenger flow
    simulation
    ferry network
    cruise network
    marine passenger port
    logistics
    Baltic Sea
    Adriatic Sea
    ferry line
    cruise market
    procesy transportu morskiego
    przepływ pasażerów
    symulacja
    sieć transportu promowego
    sieć morskiej turystyki wycieczkowej
    morski port pasażerski
    logistyka
    Morze Bałtyckie
    Morze Adriatyckie
    linia promowa
    rynek rejsów wycieczkowych
    Opis:
    Marine passenger ports are integrated into the transport systems of cities and regions today. If there are sufficient developed mathematical forecasting models in the class of polynomial models, probability series, and a number of others, then the models describing the influence of the external environment on ferry market are not sufficient. The developed scheme of interaction between the participants of the cruise market and the mathematical model of the port as a technical system is presented in this research. The article substantiates new purposes to use the logistic function to assess the external environment. A mathematical model and the derivation of the new basic equation of the logistic function for ferry market are given. Analytical data were collected on the ports and terminals of the Adriatic Sea and the Baltic Sea, and data were selected of ship calls at the passenger port St. Petersburg “Marine Facade” (2019-2020). The article proposes the consideration of new various proportionality factors that will determine the demand for cruise transportation modeling in the short-term forecasting interval. A complete mathematical model is given taking into account the real schedule of the sea passenger port. The logistic function proposed in the article allows us to solve the forecasting problem in a new way in relation to the selection and evaluation of a cruise product. Moreover, it allows us to solve a group of economic problems related to promotion problem for particular cruise product on the market, allows us to evaluate the activity of passengers when they are choosing a cruise product, and allows us to make adjustments to the planned port working schedules and to make timely adjustments. The main advantage of the proposed model is an analytical assessment of the effect of the external environment, both on passenger ports and on ferry and cruise companies.
    Źródło:
    Transport Problems; 2020, 15, 4, cz. 2; 203-214
    1896-0596
    2300-861X
    Pojawia się w:
    Transport Problems
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Infrastructure changes of the sea passenger port based on a digital transport model
    Autorzy:
    Krile, Srećko
    Maiorov, Nikolai
    Powiązania:
    https://bibliotekanauki.pl/articles/2203838.pdf
    Data publikacji:
    2021
    Wydawca:
    Politechnika Śląska. Wydawnictwo Politechniki Śląskiej
    Tematy:
    marine transport processes
    marine passenger port
    port infrastructure
    Baltic sea
    digital transport model
    ferry market
    procesy transportu morskiego
    morski port pasażerski
    infrastruktura portowa
    Morze Bałtyckie
    cyfrowy model transportu
    rynek promowy
    Opis:
    Marine passenger ports and terminals are key transport facilities that influence the development and positioning of a region, city or country. The port infrastructure should provide the world requirements in service of cruise and ferry ships, and ensure the efficiency and convenience in service of passengers and associated cargo flow. This circumstance determines the necessity of infrastructure modernization, and hardware and software renewal. At the same time, the existing equipment in ports and terminals is gradually becoming outdated, hence the necessity of modernization on the basis of development of a decision-making system. This decision-making system should no longer be based on analytical models, but on new digital transport models of sea passenger ports and terminals. These digital models must take into account both passenger handling processes and external processes for handling cruise and ferry ships. The model should have high computational power and take into account the influence of the external environment. These models should answer development forecasting questions and provide an accurate decision-making system for the validity of infrastructure changes. The Passenger Port of Saint Petersburg "Marine Façade” (St. Petersburg) was chosen as the subject of research. To construct a numerical model, port operation intensity, passenger, cruise and ferry vessel handling processes were investigated; port and terminal development strategies and the mutual influence of the "city-port" systems on each other were studied. As a result of the analysis, a new digital transport model of the sea passenger port was built, which has a high level of detail and accuracy of process implementation, high productivity and efficiency of analysis of various infrastructure changes in the port, allowing the inclusion of dynamic changes from the external environment. The numerical model has been fully implemented for this port, and new conclusions have been derived from it. The use of these new models allows justification of infrastructure upgrades and to study the position of the port in the region in relation to competitors' ports. The developed tool allows solving the problem of research on port processes at any level of planning and enables integration into the information systems already existing in ports and terminals.
    Źródło:
    Transport Problems; 2021, 16, 4; 207--216
    1896-0596
    2300-861X
    Pojawia się w:
    Transport Problems
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-8 z 8

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