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    Wyświetlanie 1-7 z 7
    Tytuł:
    Neuroevolutionary approach to COLREGs ship maneuvers
    Autorzy:
    Łącki, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/116206.pdf
    Data publikacji:
    2019
    Wydawca:
    Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
    Tematy:
    collision avoidance
    colregs
    neuroevolutionary approach to colregs
    ship handling system
    artificial helmsman
    Artificial Neural Network (ANN)
    evolutionary algorithms
    ship manoeuvering
    Opis:
    The paper describes the usage of neuroevolutionary method in collision avoidance of two power-driven vessels approaching each other regarding COLREGs rules. This may be also be seen as the ship handling system that simulates a learning process of a group of artificial helmsmen - autonomous control units, created with artificial neural networks. The helmsman observes an environment by its input signals and according to assigned CORLEGs rule, he calculates the values of required parameters of maneuvers (propellers rpm and rudder deflection) in a collision avoidance situation. In neuroevolution such units are treated as individuals in population of artificial neural networks, which through environmental sensing and evolutionary algorithms learn to perform given task safely and efficiently. The main task of this project is to evolve a population of helmsmen which is able to effectively implement chosen rule: crossing or overtaking.
    Źródło:
    TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2019, 13, 4; 745-750
    2083-6473
    2083-6481
    Pojawia się w:
    TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Innovative project of propellers and thrusters jet loads during ship berthing monitoring system
    Autorzy:
    Abramowicz-Gerigk, T.
    Burciu, Z.
    Hapke, Ł.
    Powiązania:
    https://bibliotekanauki.pl/articles/117497.pdf
    Data publikacji:
    2019
    Wydawca:
    Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
    Tematy:
    ship handling
    thruster
    propeller
    ship berthing
    monitoring system
    ship berthing monitoring system
    PIANC
    thrust stream
    Opis:
    The growing number of large high powered vessels operated in shallow water ports is the reason that port authorities and terminal operators are interested in online monitoring of loads generated by vessels during manoeuvers close to hydrotechnical constructions. The test version of the loads measurement system based on the mobile laboratory and commercial version of monitoring system based on the cloud technology are presented in the paper.
    Źródło:
    TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2019, 13, 4; 861-865
    2083-6473
    2083-6481
    Pojawia się w:
    TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The H2 and Robust Hinf Regulators Applied to Multivariable Ship Steering
    Autorzy:
    Gierusz, W.
    Powiązania:
    https://bibliotekanauki.pl/articles/116961.pdf
    Data publikacji:
    2009
    Wydawca:
    Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
    Tematy:
    Dynamic Ship Positioning (DSP)
    Multivariable Ship Steering
    Ship Steering
    Multivariable Regulators
    Simulation Model
    Open-Loop System
    Ship Handling Research and Training Centre at Ilawa
    Polska
    Manoeuvring
    Opis:
    The main goal of this task was a calculation of the two multivariable regulators for precise steering of a real, floating, training ship. The first one minimized the H2 norm of the closed-loop system. The second one was related to the Hinf norm. The robust control approach was applied in this controller with the usage of the structured singular value concept. Both controllers are described in the first part of the paper. Details of the training vessel and its simulation model then are presented. The state model of the control object obtained via identification process is described in the next section. This model with matrices weighting functions was the base for creation of ’the augmented state model’ for the open-loop system. The calculation results of the multivariable controllers is also shown in this section. Several simulations were performed in order to verify the control quality of both regulators. Exemplary results are presented at the end of this paper together with final remarks.
    Źródło:
    TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2009, 3, 4; 431-440
    2083-6473
    2083-6481
    Pojawia się w:
    TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Waypoint path controller for ships
    Autorzy:
    Tomera, M.
    Alfuth, Ł.
    Powiązania:
    https://bibliotekanauki.pl/articles/117436.pdf
    Data publikacji:
    2020
    Wydawca:
    Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
    Tematy:
    control system
    waypoint
    waypoint path controller
    silm lake
    ship handling research and training centre at Ilawa
    Polska
    blue lady
    control algorithm
    ship motion control
    Opis:
    The paper presents and discusses tests of a waypoint controller used to sail a ship along the desired route. The planned desired route for the moving ship is given as a set of waypoints connected with straight lines. The ship's control is based on the rudder blade deflection angle as a commanded parameter. The task of the controller is to determine the rudder angle which will allow the ship to sail along the desired route segment. The controller algorithm consists of two parts, the first of which is used for controlling the ship motion along linear segments of the desired route, while the second part is used when changing to the next route segment. A switching mechanism is designed to choose the relevant part of the control algorithm. The quality of operation of the ship motion control algorithm was tested on the training ship Blue Lady, at the Ship Handling Research and Training Centre located on the lake Silm at Kamionka near Iława, Poland.
    Źródło:
    TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2020, 14, 2; 375-383
    2083-6473
    2083-6481
    Pojawia się w:
    TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    New Capabilities of the NTPRO 4000 Full Mission Ship Handling Simulator in the Assessment and Evaluation Processes at Lithuanian Maritime Academy
    Autorzy:
    Zazeckis, R.
    Bartuseviciene, I.
    Maksimavicius, R.
    Powiązania:
    https://bibliotekanauki.pl/articles/116072.pdf
    Data publikacji:
    2009
    Wydawca:
    Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
    Tematy:
    Manoeuvring
    ship handling simulator
    Full Mission Bridge Simulator (FMBS)
    MET System in Lithuania
    Assessment Process
    Evaluation Process
    NTPRO 4000
    STCW Implementation
    Opis:
    Nowadays the equipment used on ships is becoming more and more sophisticated, safety of shipping depends heavily not only on trustworthiness of high-tech products, but also on mariners’ competence. It is necessary to find methods to enable seafarers to keep track with technical developments. Simulators as a tool combined with a properly developed course curriculum and qualified instructors provide an appropriate method not only for training, but also for measuring, assessing and evaluating individual mariner performance in order to test levels of competency and proficiency. According to Nieri (1995, p. 1/6), “The development of performance-based assessment tools would utilize the widely-recognized advantages of simulators and part-task trainers to generate a scenario in which the license candidate must demonstrate his knowledge of system relationships, knowledge of operational procedures, monitor systems and situations, respond to unexpected occurrences, identify and diagnose problems, and manage personnel, in a dynamic world“. This paper discusses the usage of new capabilities of the NTPRO 4000 full mission ship handling simulator in the assessment and evaluation processes at Lithuanian Maritime Academy.
    Źródło:
    TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2009, 3, 3; 269-274
    2083-6473
    2083-6481
    Pojawia się w:
    TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Integrated bilge water treatment system
    Zintegrowany system obróbki wód zęzowych
    Autorzy:
    Wiewióra, A.
    Listewnik, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/258312.pdf
    Data publikacji:
    2007
    Wydawca:
    Sieć Badawcza Łukasiewicz - Instytut Technologii Eksploatacji - Państwowy Instytut Badawczy
    Tematy:
    statek
    przedział siłowni
    woda zęzowa
    szlam
    odpady olejowe
    instalacja zęzowa
    oczyszczanie
    ship
    machinery space
    bilge water
    sludge
    waste oil
    handling system
    treatment
    Opis:
    Oily bilge water is generated due to the leakage of water and oil from equipment and piping or maintenance works resulting from routine operation in the machinery space of ships. Such oil and water leakage is usually a mixture of both and is collected in the bilge well or on the tank top as oily water. Oily bilge water must be treated in accordance with the requirements of Annex 1 of the MARPOL 73/78 (International Convention for the Prevention of Pollution from Ships) [1]. To promote the prevention of oil pollution from machinery spaces of ships, it is very important to minimise the amount of oily bilge water generated in machinery spaces. MEPC (Marine Environment Protection Committee) on session 54 recognised the concept of an Integrated Bilge Water Treatment System (IBTS). The paper presents some remarks and proposals to improve the rules that are sometimes inconsistent.
    Wody zęzowe są wynikiem przecieków wody i oleju z urządzeń i rurociągów znajdujących się w siłowni okrętowej podczas ich eksploatacji oraz prac remontowych. Przecieki te, gromadząc się w studzienkach zęzowych mieszają się tworząc mieszaniny oleiste. Mieszaniny takie muszą być obrabiane zgodnie z Aneksem I Konwencji MARPOL. W referacie przedstawiono uwagi autorów dotyczące nieco innego sposobu obróbki tych mieszanin. Przede wszystkich chodzi o rozdzielenie przecieków w taki sposób, aby ograniczyć ilość mieszaniny. Dążąc do wyjaśnienia bardzo zawiłych uregulowań Konwencji MARPOL, podano szereg definicji i objaśnień oraz zaproponowano zmiany w zintegrowanym systemie obróbki wód zęzowych (IBTS).
    Źródło:
    Problemy Eksploatacji; 2007, 3; 223-230
    1232-9312
    Pojawia się w:
    Problemy Eksploatacji
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The Importance of the Educational Factor to Assure the Safe and Security on the Sea
    Autorzy:
    Stan, L. C.
    Buzbuchi, N.
    Powiązania:
    https://bibliotekanauki.pl/articles/117031.pdf
    Data publikacji:
    2009
    Wydawca:
    Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
    Tematy:
    safety at sea
    Security at Sea
    educational factor
    MET System in Romania
    Maritime Education and Training (MET)
    ship handling simulator
    Training and Evaluation Control (TEC)
    Training Process
    Opis:
    Our paper deals with the methods and techniques used in the educational process in the Maritime University of Constanta to develop the practical abilities and principles in applying the operational procedures and the utilization of the specific safe and rescue equipments at sea, by the students and maritime officers. The educational process has an outstanding role in the career of a maritime officer and the problem of the safety and security is essential in order to avoid catastrophes and for saving human lives. The paper presents the implementation, the role and function of the new simulators as part of the teaching process. Quality cannot be obtained without new teaching methods and training procedures, where IT and simulators occupy an outstanding place. These new methods and techniques have been introduced in the Maritime University of Constanta (MUC) step by step, from the multimedia tools to computers with dedicated complex software.
    Źródło:
    TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2009, 3, 3; 353-356
    2083-6473
    2083-6481
    Pojawia się w:
    TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-7 z 7

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