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    Wyświetlanie 1-4 z 4
    Tytuł:
    Symulacja pracy systemów okretowych na przykładzie układu sterowania i kontroli silnika głównego
    Simulation of work ship` systems for example of the main engine
    Autorzy:
    Śmierzchalski, R.
    Powiązania:
    https://bibliotekanauki.pl/articles/157625.pdf
    Data publikacji:
    2003
    Wydawca:
    Stowarzyszenie Inżynierów i Techników Mechaników Polskich
    Tematy:
    systemy okrętowe
    układ sterujący
    silnik główny okrętowy
    work ship`systems
    main engine control
    monitoring system
    Opis:
    Przedstawiono w artykule koncepcję i realizację układu symulacji pracy systemów okretowych. Koncepcję układu symulacji oparto na połączeniu sterowników PLC, na których modelowane sa obiekty sterowania, z rzeczywistymi systemami sterowania i kontroli. Praktycznie układ zrealizowano łącząc rzeczywisty system sterowania i kontroli okrętowego silnika głównego AutoChief 4 firmy Kongsberg Maritime Ship Systems z modelem silnika głównego typu RTA Sulzer. Uzyskane doświadczenia oraz badania potwierdziły, że jest możliwe zachowując warunki bliskie do rzeczywistych, realizować zadania diagnozowania, podejmowania decyzji oraz obsługi systemów sterowania i kontroli. Zastosowanie w układzie rzeczywistego systemu sterowania i kontrolo, znacznie rozszerzyło zakres możliwych do realizacji zadań badawczych jak i dydaktycznych.
    The concept and realisation of the system for simulated work ships` systems were presented. The concept of simulation system was leaned on the connection PLC controllers, which was modelled the objects of control, with real control and monitoring systems. Practically the system was realised by connection real monitoring and control of ship main propulsion AutoChief 4 of Kongsberg Maritime Ship Systems with model of main engine RTA Sulzer. Taking into account experiences and research the present devices have proved that realization of the assumed didactic task is possible, preserving the conditions close to those observed in real training in automatics system maintenance. A new elements introduced to the presented simulation system is the use of controlling, and measuring systems being in operation on real ships. Use of real systems will assure broader range of research and training.
    Źródło:
    Pomiary Automatyka Kontrola; 2003, R. 49, nr 1, 1; 14-17
    0032-4140
    Pojawia się w:
    Pomiary Automatyka Kontrola
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Modern actuator
    Autorzy:
    Mielewczyk, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/242423.pdf
    Data publikacji:
    2014
    Wydawca:
    Instytut Techniczny Wojsk Lotniczych
    Tematy:
    main engine
    control
    controller
    actuator
    regulating valve
    transducer
    Opis:
    The main engine of the ship is a complex technical object, which provides propulsion of the screw and ensures the safety of a ship at sea. It consists of a number of control systems such as lube oil temperature control, temperature control of the cooling water, fuel viscosity control or adjustable speed control of the main engine. Each of the main propulsion control system affects the safety of the ship. Continuous automation systems are built with standard transducer of measured quantity, the controller and actuator. The actuator is responsible for the direct setting of the size of the control object. The actuator is connected to the control valve and the actuator position change translates into a change in the flow rate of the working medium. Thus, the operating element is required to operate in the linear characteristics of the standard signal range. From the other hand, the control valve provides flow characteristics linear or of equal percentage. This control principle of medium flow is used in various control systems. The actuator of the control valve is always equipped with a positioner, which corrects errors in the position of the valve relative to the input signal. The presented design of the motorized valve is an analog system. Using the technique of converting multiple digital signal causes the system complexity and predisposition to damage. Eliminating the intermediate elements can improve the quality control and system safety. Then it is beneficial to have a design of the operating element based on the direct digital processing unit. The aim of paper has been to present design of the valve actuator, which completely abandons the digital-to-analogue convertor. The new design should increase the level of security of the system and quality control. The design layout is presented in the article. The new actuator is on-off valves, which control, directly from the digital bits, the form of the output signal. The control signal may use the control algorithms to be used or developed individually to the actuator design.
    Źródło:
    Journal of KONES; 2014, 21, 2; 221-226
    1231-4005
    2354-0133
    Pojawia się w:
    Journal of KONES
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The impact of quality air in the engine room on the crew
    Autorzy:
    Panaitescu, M.
    Panaitescu, F. V.
    Dumitrescu, M. V.
    Panaitescu, V. N.
    Powiązania:
    https://bibliotekanauki.pl/articles/116017.pdf
    Data publikacji:
    2019
    Wydawca:
    Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
    Tematy:
    engine room
    air quality
    main engine
    real-time biometric measurement
    biometric measurement
    health parameters
    electronic bracelet
    emission control area (ECA)
    Opis:
    A The novelty of this study consists in the fact that, at the same time as the monitoring and acquisition of data of the air quality (from inside and outside), a monitoring and acquisition of data of the real-time biometric measurements of subjects exposed directly to the needle will be made. Medium by means of a bracelet attached to the subject's arm. This bracelet is designed to perform biometric measurements without creating discomfort to the subjects analyzed in the activities in which they are involved. This measurement is carried out with 9 different sensors for: pulse, oxygen in the blood, air flow (breathing), body temperature, electrocardiogram, galvanic skin response, blood pressure, the patient's position/movement, and the status of muscle (electromyography sensor). The data thus obtained will be focused on a PC and subsequently analyzed. The results of monitoring the health parameters of the subjects analyzed find application in the maritime field, to ships, especially in the engine room, where the air suffers quality transformations. The crew's return to the workplace may decrease due to the degradation of the air quality in the premises.
    Źródło:
    TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2019, 13, 2; 409-414
    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 Paris MOU on PSC, Propulsion and Auxiliary Machinery Deficiencies and the Maritime Safety
    Autorzy:
    Melo, G.
    Cobos, I.
    Powiązania:
    https://bibliotekanauki.pl/articles/116015.pdf
    Data publikacji:
    2008
    Wydawca:
    Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
    Tematy:
    Safety and Security in Sea Transportation
    Port State Control (PSC)
    Auxiliary Machinery System
    Maritime Safety
    Paris MOU
    Propulsion
    Main Engine
    safety at sea
    Opis:
    This article tries to show the relationship between one important set of deficiencies included in the Paris Memorandum of Understanding on Port State Control procedures, propulsion and auxiliary machinery, the importance of this set of deficiencies for the PSC inspection and also its importance for the Maritime Safety. The maintenance of the propulsion and auxiliary machinery systems has become less important that it deserves, that means while the ship sails everything is supposed to be properly maintained, this is the most extended policy in the Companies and accepted and supported by the Owners. This article studies the deficiencies included in the category propulsion and auxiliary machinery detected by the Port State Control Officers (PSCO) of the Paris MOU area, and tries to demonstrate how important they are in these inspections. At the same time can be seen the professional profile of the PSCO’s as well as the assessment made by them of those areas included in this set of deficiencies.
    Źródło:
    TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2008, 2, 4; 397-401
    2083-6473
    2083-6481
    Pojawia się w:
    TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-4 z 4

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