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Wyszukujesz frazę "Propulsion Loss" wg kryterium: Temat


Wyświetlanie 1-4 z 4
Tytuł:
Balancing energy processes in turbine engines
Autorzy:
Balicki, W.
Głowacki, P.
Szczeciński, S.
Korczewski, Z.
Kozakiewicz, A.
Szczeciński, J.
Powiązania:
https://bibliotekanauki.pl/articles/258928.pdf
Data publikacji:
2014
Wydawca:
Politechnika Gdańska. Wydział Inżynierii Mechanicznej i Okrętownictwa
Tematy:
turbine engines
aeronautic and marine propulsion systems
energy balance
mechanical loss
Opis:
The article discusses the issue of balancing energy processes in turbine engines in operation in aeronautic and marine propulsion systems with the aim to analyse and evaluate basic operating parameters. The first part presents the problem of enormous amounts of energy needed for driving fans and compressors of the largest contemporary turbofan engines commonly used in long-distance aviation. The amounts of the transmitted power and the effect of flow parameters and constructional properties of the engines on their performance and real efficiency are evaluated. The second part of the article, devoted to marine applications of turbine engines, presents the energy balance of the kinetic system of torque transmission from main engine turbines to screw propellers in the combined system of COGAG type. The physical model of energy conversion processes executed in this system is presented, along with the physical model of gasodynamic processes taking place in a separate driving turbine of a reversing engine. These models have made the basis for formulating balance equations, which then were used for analysing static and dynamic properties of the analysed type of propulsion, in particular in the aspect of mechanical loss evaluation in its kinematic system.
Źródło:
Polish Maritime Research; 2014, 4; 48-56
1233-2585
Pojawia się w:
Polish Maritime Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Estimation of the Probability of Propulsion Loss by a Seagoing Ship Based on Expert Opinions
Autorzy:
Brandowski, A.
Frackowiak, W.
Powiązania:
https://bibliotekanauki.pl/articles/117585.pdf
Data publikacji:
2009
Wydawca:
Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
Tematy:
Probability
Propulsion Loss
estimation
seagoing ship
Expert Opinion
Hazard Analysis
Immediate Catastrophic Failure (ICF)
Risk Analysis
Opis:
The event of the loss of propulsion function has been defined as hazardous event to a seagoing ship. It has been formalized. The procedure of acquisition of expert opinions on frequency of the event occurrence has been described. It may be considered to be of a numerical-fuzzy character. The fuzzy part was transferred to the numerical form by the pair comparison method. An example of the ship propulsion system comprising a low speed internal combustion engine and a solid propeller illustrates the method presented. It may be used wherever a hazard analysis has to be performed of a system involving human and technical aspects and there is a shortage of objective data on the investigated object.
Źródło:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2009, 3, 4; 449-454
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 probability of propulsion loss by a seagoing ship based on expert opinions
Autorzy:
Brandowski, A.
Powiązania:
https://bibliotekanauki.pl/articles/258638.pdf
Data publikacji:
2009
Wydawca:
Politechnika Gdańska. Wydział Inżynierii Mechanicznej i Okrętownictwa
Tematy:
ship
loss of propulsion
probability
estimation
expert
Opis:
The event of the loss of propulsion function has been defined as hazardous event to a seagoing ship. It has been formalized. The procedure of acquisition of expert opinions on frequency of the event occurrence has been described. It may be considered to be of a numerical-fuzzy character. The fuzzy part was transferred to the numerical form by the pair comparison method. An example of the ship propulsion system comprising a low speed internal combustion engine and a fix pitch propeller illustrates the method presented. It may be used wherever a hazard analysis has to be performed of a system involving human and technical aspects and there is a shortage of objective data on the investigated object.
Źródło:
Polish Maritime Research; 2009, 1; 73-77
1233-2585
Pojawia się w:
Polish Maritime Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Processes of a freely drifting vessel
Autorzy:
Jurdziński, M.
Powiązania:
https://bibliotekanauki.pl/articles/1841585.pdf
Data publikacji:
2020
Wydawca:
Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
Tematy:
freely drifting vessel
safety of navigation
loss of propulsion
lack of propulsion
grounding
restricted area
drifting
vessel's drift
Opis:
The article describes the rules for planning a ship's navigation in the event of loss of propulsion. A disabled ship drifting freely at sea is a potential danger to the crew and the marine environment. Lack of propulsion means that the ship cannot give way to other ships/keep out of the way of another vessel. One of the main elements of danger for a drifting ship is the possibility of grounding in restricted areas. The aim of the article is to draw the attention of navigators to the dangers to navigation resulting from ships drifting without their own propulsion, disabled ships.
Źródło:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2020, 14, 3; 687-693
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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