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    Wyświetlanie 1-6 z 6
    Tytuł:
    Koncepcja monitorowania i diagnostyki maszyn wirujących małej i średniej mocy
    Concept of monitoring and diagnostics of small and medium power rotating machinery
    Autorzy:
    Barszcz, T.
    Powiązania:
    https://bibliotekanauki.pl/articles/328300.pdf
    Data publikacji:
    2005
    Wydawca:
    Polska Akademia Nauk. Polskie Towarzystwo Diagnostyki Technicznej PAN
    Tematy:
    maszyny pomocnicze
    monitorowanie
    diagnostyka
    drgania
    auxiliary machinery
    monitoring
    diagnostics
    vibrations
    Opis:
    Artykuł przedstawia propozycję nadzoru diagnostycznego nad maszynami wirującymi małej i średniej mocy, zwanymi tu również maszynami pomocniczymi. Głównym obiektem zainteresowania są maszyny ułożyskowane tocznie o mocach od kilkudziesięciu kW do kilku MW. W pierwszej części przedstawiono uwarunkowania pod kątem diagnostyki, odnoszące się do tej grupy obiektów, a następnie określono zadania monitorowania. W kolejnej części zaprezentowano koncepcję diagnozowania obiektów. Została ona oparta na doborze częstotliwości charakterystycznych układu oraz na dopasowaniu poziomów ostrzeżeń do rzeczywistych danych, przechowywanych w bazie. Istotną częścią prezentowanej koncepcji jest automatyzacja procesu konfiguracji. Artykuł zakończono opisem możliwości zastosowań, m. in. w energetyce i transporcie. Dodatkowo zaproponowano możliwości usprawnień eksploatacyjnych.
    The paper presents proposal for monitoring and diagnostics of small and medium power rotating machinery, referred to also as auxiliary machinery. Main points of interest are machines with rolling bearings of power between few tens of kW to few MW. The first part presents characteristics of machinery from diagnostics point of view and requirements for monitoring. Next part contains concept of diagnostics for these machines. It is based on selection of characteristic frequencies of the object and tuning of alert levels based on real data, stored in the database. Important part of this concept is automation of this process. The paper ends with proposals of applications, e.g. in power generation and transport. It also contains several ideas, which can improve practical implementation.
    Źródło:
    Diagnostyka; 2005, 35; 49-56
    1641-6414
    2449-5220
    Pojawia się w:
    Diagnostyka
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Comparative studies of the seatings of propulsion plants and auxiliary machinery on chocks made of metal and cast of resin. Part I. Mounting on steel chocks
    Autorzy:
    Grudziński, Paweł
    Konowalski, Konrad
    Powiązania:
    https://bibliotekanauki.pl/articles/259896.pdf
    Data publikacji:
    2019
    Wydawca:
    Politechnika Gdańska. Wydział Inżynierii Mechanicznej i Okrętownictwa
    Tematy:
    sea-going ships
    propulsion plants
    auxiliary machinery
    seating
    bolted joints
    chocks
    Opis:
    This paper presents a description and the results of experimental studies of the deformation, friction and structural damping occurring in foundation bolted joints of propulsion plant components and auxiliary machinery that is rigidly mounted on sea-going ships. The rigid mounting of these devices to the ships’ structural foundations can be implemented in a traditional way, i.e. on chocks made of metal (usually of steel), or in a modern way, i.e. on chocks cast of resin, specially designed for this purpose. The main goal of this study is to perform a comparative analysis of these two solutions and to give a scientific explanation for why chocks cast of resin perform better in machinery seatings than the steel chocks traditionally used for this purpose. The paper consists of two parts. Part I presents the details of the rigid mountings of machinery to the foundations, and contains the results of experimental studies performed on a model of a foundation bolted joint with a traditional steel chock. Part II contains the results of similar studies carried out for a model of a bolted joint with a modern chock cast of resin. Next, a comparative analysis and evaluation of the results obtained for both investigated bolted joints was carried out, and conclusions were formulated to highlight important aspects of the problem from the point of view of science and engineering practice.
    Źródło:
    Polish Maritime Research; 2019, 4; 142-148
    1233-2585
    Pojawia się w:
    Polish Maritime Research
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Comparative studies of the seatings of propulsion plantsand auxiliary machinery on chocks made of metal and cast from resin. Part II. Mounting on cast resin chocks
    Autorzy:
    Grudziński, Paweł
    Konowalski, Konrad
    Powiązania:
    https://bibliotekanauki.pl/articles/259948.pdf
    Data publikacji:
    2020
    Wydawca:
    Politechnika Gdańska. Wydział Inżynierii Mechanicznej i Okrętownictwa
    Tematy:
    sea-going ships
    propulsion plants
    auxiliary machinery
    seating
    bolted joints
    chocks
    Opis:
    This article is Part II of the paper containing a description and results of the experimental studies of the deformations, friction processes and structural damping that occur in the foundation bolted joints of propulsion plant components and auxiliary machinery installed on sea-going ships. Part I of this research work presents an analysis of the rigid mountings of machines and devices to the foundations on steel or resin chocks, and explains the need to carry out relevant research in this area. It also presents the description and results of experimental studies carried out for a foundation bolted joint with a conventionally used steel chock. Part II (this article) contains a description and results of similar studies carried out for a foundation bolted joint with a modern chock – cast from epoxy resin compound (EPY), specially developed for this purpose. Then, a comparative analysis of the results obtained for both bolted joints in question was made and the foundation chocks of the poured-in-place resin compound were demonstrated to better fulfill their technical tasks than the steel chocks traditionally used for this purpose.
    Źródło:
    Polish Maritime Research; 2020, 1; 126-133
    1233-2585
    Pojawia się w:
    Polish Maritime Research
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Operational characteristics of selected marine turbogenerators powered by steam from auxiliary oil-fired boilers
    Autorzy:
    Behrendt, C.
    Powiązania:
    https://bibliotekanauki.pl/articles/135555.pdf
    Data publikacji:
    2015
    Wydawca:
    Akademia Morska w Szczecinie. Wydawnictwo AMSz
    Tematy:
    exploitation
    steam turbine
    marine turbogenerator
    steam consumption
    fuel
    efficiency
    boiler
    auxiliary machinery
    steam system
    Opis:
    This paper describes such quantitative characteristics and operational parameters for marine turbogenerator as: efficiency, and steam consumption per unit or hour for various loads. Characteristic numbers and operational parameters were estimated from the results of operational tests of a turbogenerator aboard a petroleum tanker.
    Źródło:
    Zeszyty Naukowe Akademii Morskiej w Szczecinie; 2015, 44 (116); 9-13
    1733-8670
    2392-0378
    Pojawia się w:
    Zeszyty Naukowe Akademii Morskiej w Szczecinie
    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
    Tytuł:
    Correlation Between Academic Performance in Auxiliary Machinery 2 Subject and Navigational Trip Among Marine Engineering Students at Maritime University in the Philippines
    Autorzy:
    Alimen, R. A.
    Jaleco, V. B.
    Pador, R.
    Gayo, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/116394.pdf
    Data publikacji:
    2009
    Wydawca:
    Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
    Tematy:
    Maritime Education and Training (MET)
    MET System in the Philippines
    Marine Engineering
    Auxiliary Machinery
    Academic Performance
    Marine Engineering Students
    Statistical Study
    Navigational Trip
    Opis:
    The purpose of this study was to ascertain the level of academic performance in Auxiliary Machinery 2 subject and navigational trip among marine engineering students at maritime university, specifically JBLFMU-Molo, Iloilo City, Philippines. It further aimed also to determine the relationship of the two variables. The researchers used the quantitative research method and employed the descriptive statistics for the analysis of data among the randomly selected participants of the present study. The statistical tools were frequency, mean, and Pearson’s r. To come up with the data needed for this study, the questionnaire – checklist on “Navigational trip” was developed by the researchers. Results revealed that as an entire group, the level of academic performance was “excellent” and the navigational trip was “moderately satisfactory” among marine engineering students. The correlation between navigational trip and auxiliary machinery 2 subject was “positive and significantly correlated.”
    Źródło:
    TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2009, 3, 2; 237-240
    2083-6473
    2083-6481
    Pojawia się w:
    TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-6 z 6

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