Temat: engine model - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Analysis of the possibilities of using modern process working marine diesel engine
Autorzy:: Cuper-Przybylska, D.
Powiązania:: https://bibliotekanauki.pl/articles/241923.pdf
Data publikacji:: 2016
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: diesel
engine
model
MVEN
marine engine
Mean Value Engine Model
Opis:: Increasing public awareness of environmental protection, it has caused a lot of emphasis on the marine industry to create reciprocating diesel environmentally friendly. Conducting research on real objects in the laboratory gives us the solution to the problem. However, such studies generate large financial resources, especially for marine engines also take a lot of time. Creating a simulation on a computer allows for the limited financial resources and also speeding up work on the piston marine engine. Computer simulations allow the creation of more complex physical models, which can describe the process of operating a marine diesel engine. However, the complication models cause a problem of the future understanding of the model and the possibility of subsequent use of it, for example for control of the engine. The more it established the need to simplify complex models of engines for better understand the processes occurring in the engine. The article is a description of the Mean Value Engine Model (MVEM), which were analysed individual blocks of the model together with the modifications related to the environment in which the engine will run. Modular model allows better modifying it and adding new blocks. This model is based mainly designed for application control. Because of the simple structure easy to adjust for different types of engines. This is particularly good for use in motor drivers. It allows better matching engine operating parameters to reduce emissions of harmful substances into the environment and also achieve better efficiency of marine engine.
Źródło:: Journal of KONES; 2016, 23, 2; 81-88
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Zastosowanie metody analizy wrażliwości w badaniach identyfikacyjnych modelu silnika z turbodoładowaniem
Application of sensitivity analysis study of identification the turbocharged engine model
Autorzy:: Danilecki, K.
Powiązania:: https://bibliotekanauki.pl/articles/316712.pdf
Data publikacji:: 2012
Wydawca:: Instytut Naukowo-Wydawniczy "SPATIUM"
Tematy:: analiza wrażliwości
identyfikacja silnika
model silnika
turbodoładowanie
sensitivity analysis
engine indentification
engine model
turbocharged
Opis:: W artykule przedstawiono podstawowe pojęcia teorii wrażliwości. Omówiono metodę analizy wrażliwości całkowitej zastosowaną do oceny istotności wielkości wejściowych w badaniach identyfikacyjnych modelu silnika. Podano przykład zastosowania metody wrażliwości do wyznaczenia funkcji modelu współczynnika napełnienia.
In the present paper basic notations of the sensitivity analysis have been presented. A total sensitivity analysis method, basing on global regression model, has been presented. This method has been used to assess the significance of the factors in the research engine model identification. An example application of this method to determine the model sensitivity of the filling ratio.
Źródło:: Autobusy : technika, eksploatacja, systemy transportowe; 2012, 13, 5; 144-149
1509-5878
2450-7725
Pojawia się w:: Autobusy : technika, eksploatacja, systemy transportowe
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: The use of a mathematical model of marine diesel engine in a computer program
Autorzy:: Bogdanowicz, A.
Kniaziewicz, T.
Zacharewicz, M.
Powiązania:: https://bibliotekanauki.pl/articles/27315943.pdf
Data publikacji:: 2018
Wydawca:: STE GROUP
Tematy:: model silnika
program komputerowy
symulacja stanu technicznego silnika
engine model
computer program
engine technical state simulation
Opis:: The paper describes the application of the author's mathematical model of gas-dynamic processes for a marine piston engine based on a computer program. The developed mathematical and numerical model is designed to conduct simulation diagnostics. Therefore, it is possible to carry out calculations for motors in different technical conditions and observing influence of changes in technical condition on selected parameters of its work. Simulation of changes in technical condition is carried out by modifying parameters of structure’s model object. The article contains a detailed description of each options of the computer program. From the main program window, user can select type of engine model (supercharging method, cylinder number, work order, stroke and piston diameter and a number of other parameters). Through a window of simulation of known and recognizable damages such as: change in fuel dose for each cylinder, change in intake and outlet valves, leakage of piston-ring-cylinder system, change of injector hole cross section. Final windows show results of calculations in form of mileage parameters of engine as a function of crank angle.
Źródło:: New Trends in Production Engineering; 2018, 1, 1; 453-460
2545-2843
Pojawia się w:: New Trends in Production Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: Thermodynamic model of the ASz-62IR radial aircraft engine
Model termodynamiczny gwiazdowego silnika lotniczego ASz-62IR
Autorzy:: Magryta, P.
Pietrykowski, K.
Gęca, M.
Powiązania:: https://bibliotekanauki.pl/articles/212364.pdf
Data publikacji:: 2018
Wydawca:: Sieć Badawcza Łukasiewicz - Instytut Lotnictwa
Tematy:: aviation propulsion
AVL BOOST
engine model
charge exchange
mixture formation
model silnika
napędy lotnicze
tworzenie mieszanki
wymiana ładunku
Opis:: The article presents assumptions of the one-dimensional model of the ASz-62IR aircraft engine. This model was developed in the AVL BOOST software. The ASz-62IR is a nine cylinder, aircraft engine in a radial configuration. It is produced by the Polish company WSK “PZL-Kalisz” S. A. The model is used for calculating parameters of the fuel stream and the air stream in intake system of the engine, as well as for the analyses of the combustion process and the exhaust flow to the external environment. The model is based on the equations describing the isentropic flow. The geometry of the channels and all parts of the model has been mapped on the basis of empirical measurements of the engine elements. The model assumes indirect injection where the gasoline was used as a fuel with the calorific value of 43.5 MJ/kg. The model assumes a mixture of a stoichiometric ratio of 14.5. This model is only part of the overall the ASz-62IR engine model. After the simulation tests on the full model the obtained results confirmed the correctness of the model used to create the mixture. It was found that the AVL BOOST software is good for the implementation of this type of work.
W artykule przedstawiono założenia jednowymiarowego modelu wymiany ładunku z silnika lotniczego ASz-62IR. Model ten został opracowany w programie AVL BOOST. Silnik ASz-62IR jest dziewięciocylindrowym silnikiem lotniczym w układzie gwiazdy. Jest on produkowany przez polską firmę WSK „PZL-Kalisz” S.A. Opracowany model służy do obliczania parametrów strumienia paliwa i powietrza w układzie dolotowym silnika, jak również do analizy procesu spalania i przepływu spalin do środowiska zewnętrznego. Model jest oparty na równaniach opisujących przepływ izentropowy. Geometrię kanałów i wszystkich przepływowych elementów modelu odwzorowano na podstawie empirycznych pomiarów konstrukcji silnika. W modelu założono wtrysk pośredni, a jako paliwo zastosowano benzynę o wartości opałowej 43,5 MJ/kg. Założono stechiometryczną mieszankę o współczynniku 14,5. Opisany model jest tylko częścią całkowitego modelu silnika ASz-62IR. Po wykonaniu badań symulacyjnych pełnego modelu uzyskano wyniki potwierdzające prawidłowość zastosowanego modelu tworzenia mieszanki oraz stwierdzono przydatność oprogramowania AVL BOOST do realizacji tego typu prac.
Źródło:: Prace Instytutu Lotnictwa; 2018, 1 (250); 36-49
0509-6669
2300-5408
Pojawia się w:: Prace Instytutu Lotnictwa
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 5.

Tytuł:: Model of processes of the AL25/30 marine engine and its verification
Autorzy:: Cuper-Przybylska, Dominika
Powiązania:: https://bibliotekanauki.pl/articles/27315920.pdf
Data publikacji:: 2018
Wydawca:: STE GROUP
Tematy:: model silnika
olej napędowy
silnik okrętowy
spalanie
model engine
diesel
marine engine
combustion
Opis:: The work presents a model of the marine diesel engine working process. The research object was the AL25/30 engine. The model consists of partial models of the combustion process in the engine cylinders, the heat exchange process, flows through air and exhaust channels, heat exchange in the intercooler and friction in mechanical components of the engine. The model includes a description of the processes taking place in the turbocharger also. The input data to the model and the verification data were the results of direct measurements on the research facility. The verification showed errors in the calculation of air and exhaust gas parameters not exceeding 11%. The paper also presents an analysis of the results of fast-changing parameters, including combustion pressure in engine cylinders and pressures in individual gas channels. The designed model allows the analysis of the research facility operation and enables its further development towards the assessment of toxic compounds emission to the atmosphere.
Źródło:: New Trends in Production Engineering; 2018, 1, 1; 285--291
2545-2843
Pojawia się w:: New Trends in Production Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 6.

Tytuł:: The use of technology of spatial printing in designing the PZL-10W engine model
Autorzy:: Kowalski, M.
Kotlarz, W.
Zahorski, T.
Ćwiek, J.
Powiązania:: https://bibliotekanauki.pl/articles/2073640.pdf
Data publikacji:: 2016
Wydawca:: Politechnika Gdańska. Wydział Inżynierii Mechanicznej i Okrętownictwa
Tematy:: 3D printing technology
spatial modelling
PZL-10W engine model
technologie druku 3D
modelowanie przestrzenne
model silnika PZL-10W
Opis:: The aim of this paper is to present the possibilities of using 3D spatial printing technology to create complex models, e.g. turbine helicopter engines, PZL-10W type, operated on the W-3 “Sokół” helicopter. We have presented the process of creating a spatial model using CAD software. It required a careful selection of the parts necessary for its manufacture as well as elimination of minor parts, which were insignificant from the functional and educational perspective of the model. We presented the type of printer which was used to prepare the model, and also its software. The verification of the correctness of designing the files for particular parts was made with Netfabb software. Proper verification affected the choice of files to be sent to the 3D printer software, where they underwent further slight changes concerning, among others, the thickness of the layers and the percentage of filling the interior of the individual parts of the engine. The printouts of the selected engine parts have been shown in the photographs. We also (briefly) described the processes of treatment of the parts, their labour intensity as well as the hardware used on a regular basis for this purpose. Finally, we discussed the assembly process of the entire engine. In conclusion, we stressed the importance of the model as a significant didactic aid which is to support the process of acquiring knowledge related to the construction, kinematics and operation of the turbine engine. We also specified the amount of used materials, labour consumption (in man-hours) with regard to the same printout of the parts as well as the finishing works.
Źródło:: Journal of Polish CIMEEAC; 2016, 11, 1; 103--110
1231-3998
Pojawia się w:: Journal of Polish CIMEEAC
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 7.

Tytuł:: A method for evaluatingthe performance of a marine piston internal combustion engine used as the main engine on a ship during its voyage in different sailing conditions
Autorzy:: Girtler, J.
Powiązania:: https://bibliotekanauki.pl/articles/259375.pdf
Data publikacji:: 2010
Wydawca:: Politechnika Gdańska. Wydział Inżynierii Mechanicznej i Okrętownictwa
Tematy:: engine operation
combustion engine performance evaluation
interpretation of energy conversion
Newton-Leibniz formula
model of engine operation
Opis:: A method is presented for evaluating the performance of piston internal combustion engines used as the main engines on sea-going ships and acting in typical operating conditions. These conditions are described taking into account the performance area of engines of this type. The presented method provides opportunities for calculating the numerical effect of the action using the integral calculus. The above effect is presented as a physical quantity expressed by a number with the metric unit called the joule-second. Proposed is the use of types of integrands (which are functional dependences of the energy converted in these engines on time) which make it possible to use the second fundamental theorem of calculus justifying the use of the Newton-Leibniz formula. The object of the analysis is the process of changes of the energy converted in the internal combustion engines during their operation, described with the aid of a deterministic model of the real process taking into account its sample realisation.
Źródło:: Polish Maritime Research; 2010, 4; 31-38
1233-2585
Pojawia się w:: Polish Maritime Research
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 8.

Tytuł:: Simulation model of combustion engine with direct injection of hydrogen
Autorzy:: Blažek, J.
Brabec, P.
Powiązania:: https://bibliotekanauki.pl/articles/242159.pdf
Data publikacji:: 2009
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: Simulation model of combustion engine
direct hydrogen injection
Ricardo Wave
combustion process
spark ignition engine
Opis:: Fuel mixture formation inside a cylinder has become used more frequently in spark ignition engines in recent years. gas internal combustion engines can also benefit from this concept as direct injection into an engine 's cylinder during the compression stroke not only increases its volumetric efficiency but also eliminates adverse anomalies in the combustion process. This paper focuses on the development of a simulation model for a spark ignition engine with direct hydrogen injection into a cylinder. The Wave software was used for the simulation. A part of the paper depicts the model's verification. The study utilized a three-cylinder internal combustion engine with the total cylinder volume of 1.2 dm3. The concept of the engine is based on new, high-pressure injectors with 10 MPa inlet pressure (gas-hydrogen injection directly into the engine cylinder). Utilization of internal fuel mixture formation can be beneficial due to its enabling the control of the combustion process and gaseous emission generation. From the viewpoint of the engine's design, however, internal fuel mixture utilisation is more complicated as injectors have to be built into the cylinder head. The actual engine construction is housed in laboratories of the Technical University of Liberec, Department of Vehicles and Engines.
Źródło:: Journal of KONES; 2009, 16, 3; 15-21
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 9.

Tytuł:: Outline of history and comparative analysis of internal combustion engines for flying models
Autorzy:: Pełczyński, Jakub
Powiązania:: https://bibliotekanauki.pl/articles/24202452.pdf
Data publikacji:: 2023
Wydawca:: Polskie Towarzystwo Naukowe Silników Spalinowych
Tematy:: internal combustion engines
model engine
history of model engines
comparative
flying models
silniki spalinowe
silnik modelarski
historia silników modelarskich
porównanie
modele latające
Opis:: The article discusses the most important facts from the history of the development of miniature aircraft engines and carries out their comparative analysis. Already in the 1930s, the structural system characteristic of model engines was established, which has hardly changed to this day. The following sections compare the various types of engines: two-stroke and four-stroke engines, spark-ignition engines, glow plug engines, engines with a push-pull cylinder arrangement, radial and in-line engines. The comparisons of the parameters and operational indicators of such engines presented in the tables allowed for the assessment of the advantages and disadvantages of individual engines, making several observations and drawing some more general conclusions.
Źródło:: Combustion Engines; 2023, 62, 2; 36--44
2300-9896
2658-1442
Pojawia się w:: Combustion Engines
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 10.

Tytuł:: The research of acoustic emission of a low-power aircraft engine
Badanie emisji akustycznej lotniczego silnika małej mocy
Autorzy:: Gęca, M.
Pietrykowski, K.
Rosiński, K.
Powiązania:: https://bibliotekanauki.pl/articles/36388826.pdf
Data publikacji:: 2018
Wydawca:: Sieć Badawcza Łukasiewicz - Instytut Lotnictwa
Tematy:: model aircraft engine
aerospace propulsion systems
sound power
noise
silnik modelarski
napędy lotnicze
moc akustyczna
hałas
Opis:: This paper presents the methodology and investigation of the sound power level produced by a radial piston aircraft engine operating at varied speeds. The research model aircraft engine of a maximum power of 5.5 kW with a two-bladed airscrew was placed on a test bend. Its sound power level was calculated from the sound pressure level measured at 9 measurement points distributed on a hemispherical surface in a confined space in line with PN-EN 3744. Mean sound power generated by the ASP FS400AR engine is 96 dB at idle (2,880 rpm) and 105 dB at a cruising speed (4,740 rpm). Accordingly, it can be concluded that a sound level meter registered a higher sound power level at the points in front of the model aircraft engine than at the points behind it, whereas the lowest sound power level was registered directly above the engine.
W artykule przedstawiono metodologię oraz badania emisji akustycznej tłokowego lotniczego silnika w układzie gwiazda przy określonych prędkościach obrotowych silnika. Na badanym modelarskim silniku gwiazdowym o maksymalnej mocy 5,5 kW umieszczono śmigło dwułopatowe. Silnik umieszczono na stanowisku badawczym. Przeanalizowano budowę napędów lotniczych ze szczególnym uwzględnieniem modelarskich silników tłokowych, przyrządy do pomiaru poziomu dźwięku, normy i przepisy dotyczące emisji akustycznej z silników lotniczych oraz jak hałas lotniczy wpływa na zdrowie człowieka. W pracy również przedstawiono metody pomiarów akustycznych oraz elementy stanowiska badawczego. Wyznaczono poziom mocy akustycznej źródła w oparciu o pomiary poziomu ciśnienia akustycznego w 9 punktach pomiarowych na półkulistej powierzchni pomiarowej w przestrzeni zamkniętej zgodnie z normą PN-EN 3744. Przed zasadniczymi pomiarami zmierzono poziom ciśnienia akustycznego tła. Średnia moc akustyczna wytwarzana przez silnik ASP FS400AR na biegu jałowym (2880 obr/min) wynosi 96 dB a przy prędkości przelotowej (4740 obr/min) 105 dB. Na podstawie wyników stwierdzono, że miernik ustawiony w punktach znajdujących się przed silnikiem, zarejestrował wyższy poziom mocy akustycznej niż punkty znajdujące się za modelarskim silnikiem tłokowym, natomiast najmniejsza moc akustyczna wyznaczona w czasie pomiarów znajduje się bezpośrednio nad silnikiem.
Źródło:: Transactions on Aerospace Research; 2018, 3 (252); 19-29
0509-6669
2545-2835
Pojawia się w:: Transactions on Aerospace Research
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 11.

Tytuł:: Utilising the resonance frequency of the engine vibration sensor in diagnostics of the exhaust valve leakage
Autorzy:: Komorska, I.
Powiązania:: https://bibliotekanauki.pl/articles/246940.pdf
Data publikacji:: 2010
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: combustion engine
valve defect
engine vibration
vibroacoustic model
Opis:: A vibroacoustic signal of an internal combustion engine contains several diagnostic information, which are -for the most part - not utilised since they require complex processing methods in order to separate useful data and to eliminate disturbances. The way of analysis ofsuch complex signal depends on the diagnostic aim. It is a rich source of information not only concerning the combustion process, but also various mechanical defects occurring in the driving system (valves, clutch, gearbox). Wear of elements as well as small mechanical defects cause the adaptation of the control system to new parameters. Thus, in many cases these adaptive systems can be masking mechanical defects. Burning out of exhaust valves or an improper valve clearance are examples of such defects. The method of diagnostics of leakages in a system: exhaust valve - cylinder, on the basis of measuring the vibration signal of the engine head is proposed in the paper. The results of the analysis of the engine vibration signal under conditions of a defected exhaust valve and an increased valve clearance are presented. The active diagnostic experiment was performed on the engine of Fiat Punto 1.2. During road tests the vibrations acceleration signal was recorded as well as certain auxiliary signals used for a synchronisation and identification of engine timing. The natural acceleration of vibrations in the resonance frequency range of the piezoelectric sensor was utilized. The vibration signal was pre-processed i.e. filtered, synchronously averaged and windowed. Satisfying diagnostic results of the valve defect or the improper valve clearance were obtained on the basis of the analysis of the engine vibration acceleration signal envelope. The signal measures explicitly indicating the valve condition were determined. The method, after certain modifications, can be applied for the on-line valve diagnostics.
Źródło:: Journal of KONES; 2010, 17, 2; 209-216
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 12.

Tytuł:: The diagnostic model proposition of the engine vibration signal
Autorzy:: Komorska, I.
Powiązania:: https://bibliotekanauki.pl/articles/244213.pdf
Data publikacji:: 2008
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: vibroacoustic model
autoregressive model
combustion engine
valve vibration
Opis:: Vibroacoustic signal of reciprocating engine carries diagnostic information that is not efficiently used because of complicated signal processing methods for separation of useful components and noise elimination. The measured vibrations are a mixture of periodic waves due to the rotating components and transient waves due to the reciprocating components of the engine and pressure forces. Engine vibrations may be described in several ways depend on the diagnostic purpose. For detecting non-uniform cylinder operation, for instance, the methods for rotating machines can be considered. Many transients occur in vibration signal of the combustion engine like exhaust and inlet valve operations, fuel injection, combustion, piston slap. To analyze them the time-frequency methods can be used. Diagnosing of some damages, like valve clearance changing or valve burning, can be done using the diagnostic model. This model should be rather simple and sensitive to mentioned damages. In modelling two approaches can be considered. The first one is based on the real physical parameters of the system. The second one is making the abstractive statistical model of signal with abstractive parameters. In the paper the autoregressive model is proposed. Identifying model is finding periodically time-varying coefficients of the equivalent filter. All the damages in the system make changes of the coefficients. The model presented in the paper is illustrated with the signal of spark ignition combustion engine.
Źródło:: Journal of KONES; 2008, 15, 2; 191-197
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 13.

Tytuł:: Modeling the thermal loads in the Subaru EJ25 engine
Autorzy:: Wendeker, M.
Magryta, P.
Majczak, A.
Biały, M.
Powiązania:: https://bibliotekanauki.pl/articles/242017.pdf
Data publikacji:: 2011
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: modelling
thermal model
ABAQUS
piston engine
Opis:: The research focuses on the solutions to avoid overheating the intake and exhaust valves due to engine overload. Subaru EJ25 engines are currently mounted in passenger cars such as Subaru Impreza but the author's innovative idea is to use them in small passenger airplanes. The paper describes the coupled thermo - mechanical load model of a supercharged Subaru EJ25 engine. The engine piston was tested thermally and mechanically, and the intake and exhaust valves only thermally. The calculations were done using the finite element method (FEM) in ABAQUS 6.10. Parts where divided into Hex and Tet mesh elements, depending of their geometry. The models used in the simulation were previously created using CATIA v5. Because there were only separate parts, the authors used only Part Module. The process of 3D scanning based on the method of reverse engineering was for fine mapping the surface of the examined parts, e.g. a piston. The boundary conditions and material properties are based on the literature and the information provided by the companies that sell spare parts for this engine. The simulations were done for varied heating times and mechanical load (25, 50, 100, 250, 400 seconds).
Źródło:: Journal of KONES; 2011, 18, 1; 683-688
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 14.

Tytuł:: Diagnostyka symulacyjna układu turbodoładowania okrętowego tłokowego silnika spalinowego
Simulation diagnostics of turbocharging system used in marine engine
Autorzy:: Korczewski, Z.
Zacharewicz, M.
Powiązania:: https://bibliotekanauki.pl/articles/222409.pdf
Data publikacji:: 2007
Wydawca:: Akademia Marynarki Wojennej. Wydział Dowodzenia i Operacji Morskich
Tematy:: modelowanie
turbodoładowanie
okrętowe tłokowe silniki spalinowe
model fizykalny
model matematyczny
modelling
explosion engine
shipping- piston- explosion engine
mathematical model
Opis:: W artykule przedstawiono model matematyczny procesów gazodynamicznych zachodzących w kanale spalin wylotowych silnika okrętowego z turbodoładowaniem. W pierwszej części artykułu opisano metodykę prowadzenia badań diagnostycznych na obiekcie rzeczywistym. Omówiono w nim aparaturę pomiarową stosowaną do badań, a na schemacie realizacji badań umiejscowiono aktualnie rozpracowane zagadnienia. W dalszej części opisano obiekt rzeczywisty oraz bazujący na nim model fizykalny. Ostatnią część artykułu stanowi opis modelu matematycznego procesów gazodynamicznych zachodzących w kanale wylotowym silnika. Model ten umożliwia wyznaczenie wybranych parametrów stanu czynnika w dowolnym przekroju charakterystycznym kanału.
The paper presents a mathematical model of gaso-dynamic processes occurring in an exhaust gas pass in a marine engine with turbo charging. The first part of the paper deals with methodology of diagnostic investigations carried out on a real object. It involves measuring instruments used for the investigations and the diagram of progress in investigations shows problems being currently under study. The later part describes the real object and a physical object based on it. The last part of the paper constitutes a description of the mathematical model of gaso-dynamic process occurring in the exhaust pass of the engine. The model can be used to determine selected parameters of state agent in any characteristic cross-section of the pass.
Źródło:: Zeszyty Naukowe Akademii Marynarki Wojennej; 2007, R. 48 nr 2 (169), 2 (169); 73-102
0860-889X
Pojawia się w:: Zeszyty Naukowe Akademii Marynarki Wojennej
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 15.

Tytuł:: Reliability Assessment of Main Engine Subsystems Considering Turbocharger Failure as a Case Study
Autorzy:: Anantharaman, M.
Khan, F.
Garaniya, V.
Lewarn, B.
Powiązania:: https://bibliotekanauki.pl/articles/116356.pdf
Data publikacji:: 2018
Wydawca:: Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
Tematy:: main engine
main propulsion
turbocharger
turbocharger failure
main propulsion engine
Markov model
Weibull failur model
reliability
Opis:: Safe operation of a merchant vessel is dependent on the reliability of the vessel’s main propulsion engine. Reliability of the main propulsion engine is interdependent on the reliability of several subsystems including lubricating oil system, fuel oil system, cooling water system and scavenge air system. Turbochargers form part of the scavenge sub system and play a vital role in the operation of the main engine. Failure of turbochargers can lead to disastrous consequences and immobilisation of the main engine. Hence due consideration need to be given to the reliability assessment of the scavenge system while assessing the reliability of the main engine. This paper presents integration of Markov model (for constant failure components) and Weibull failure model (for wearing out components) to estimate the reliability of the main propulsion engine. This integrated model will provide more realistic and practical analysis. It will serve as a useful tool to estimate the reliability of the vessel’s main propulsion engine and make efficient and effective maintenance decisions. A case study of turbocharger failure and its impact on the main engine is also discussed.
Źródło:: TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2018, 12, 2; 271-276
2083-6473
2083-6481
Pojawia się w:: TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
Dostawca treści:: Biblioteka Nauki

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