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Wyświetlanie 1-15 z 25
Tytuł:
Research on a control system based on stepping motor for ship’s controllable pitch propellers
Autorzy:
Dymarski, C.
Powiązania:
https://bibliotekanauki.pl/articles/258652.pdf
Data publikacji:
2008
Wydawca:
Politechnika Gdańska. Wydział Inżynierii Mechanicznej i Okrętownictwa
Tematy:
ship controllable pitch (CP) propellers
hydraulic drive and control
control systems
Opis:
This paper presents description of a laboratory stand for testing servo-mechanisms of ship low-power CP propellers, as well as a remote control system for such propellers, based on electric stepping motor. Also, are presented results of the first series of tests of the control system, carried out on non-loaded CP propeller by applying stepped values of propeller pitch at two values of rotational speed of the stepping motor.
Źródło:
Polish Maritime Research; 2008, 1; 37-41
1233-2585
Pojawia się w:
Polish Maritime Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
An integrated hydraulic drive system of a novel device for launching lifeboats from large passenger ships
Autorzy:
Dymarski, C.
Powiązania:
https://bibliotekanauki.pl/articles/259052.pdf
Data publikacji:
2012
Wydawca:
Politechnika Gdańska. Wydział Inżynierii Mechanicznej i Okrętownictwa
Tematy:
ship deck equipment
ship evacuating systems
life saving appliances systems
lifeboat chain lift
hydraulic drive and control system
Opis:
This paper presents a continuation of the projects [5, 6] dealing with the novel concepts of evacuating people from large passenger ships. A novel integrated drive and control system for chain lift with lifeboats fastened on it as well as for stern port- ramp, is presented. Additional novel elements is the application of the stern port - ramp fitted with a buoyancy element, and its increased capability of automatic adjusting its operational deflection in the case of a large forward trim of ship. It increases safety and comfort of evacuation in the difficult conditions, but to obtain it a more complex drive and control system has been required to be designed.
Źródło:
Polish Maritime Research; 2012, 1; 3-10
1233-2585
Pojawia się w:
Polish Maritime Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A concept of drive and control system of a novel device for people evacuating from large passenger ships
Autorzy:
Dymarski, C.
Powiązania:
https://bibliotekanauki.pl/articles/259429.pdf
Data publikacji:
2010
Wydawca:
Politechnika Gdańska. Wydział Inżynierii Mechanicznej i Okrętownictwa
Tematy:
ship deck equipment
ship evacuating systems
life saving appliances systems
hydraulic drive and control system
Opis:
Year-after-year increasing number and size of sea-going passenger ships make it necessary to search for novel methods of evacuation of passengers from such large objects or to improve those which have been applied so far. This paper presents a concept of one of the original methods, in which, a.o., chain lifts have been applied to hold up life boats during voyage as well as to launch them in case of evacuation. Technical assumptions and requirements as well as schematic diagram of the hydraulic drive and control system of the lift, is presented.
Źródło:
Polish Maritime Research; 2010, 4; 54-58
1233-2585
Pojawia się w:
Polish Maritime Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Preliminary analysis of proposed ship docking systems for a designed floating dock
Autorzy:
Dymarski, C.
Powiązania:
https://bibliotekanauki.pl/articles/260319.pdf
Data publikacji:
2005
Wydawca:
Politechnika Gdańska. Wydział Inżynierii Mechanicznej i Okrętownictwa
Tematy:
floating dock
shipboard equipment
mooring devices
Popek, A.
Opis:
In this paper are presented alternative design concepts and their comparative analysis of ship docking systems for a floating dock. The floating dock was designed by a team of Faculty of Ocean Engineering and Ship Technology, Gdańsk University of Technology, within the frame of the ECOLOGICAL DOCK E!2968 project. The presented design solutions differ to each other mainly by the kinds of applied devices: in the first case these are mooring winches and docking cars, whereas in the other – rope warping winches. For both the specified systems a comparative analysis was carried out in which their features, complexity of construction and associated costs were among other accounted for. In the opinion of the authors the presented analysis may help the principal designer of the dock in making choice of a more suitable system.
Źródło:
Polish Maritime Research; 2005, S 1; 61-64
1233-2585
Pojawia się w:
Polish Maritime Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Computational simulation of motion of a rescue module during its launching from ship at rough sea
Autorzy:
Dymarski, C.
Dymarski, P.
Powiązania:
https://bibliotekanauki.pl/articles/259483.pdf
Data publikacji:
2014
Wydawca:
Politechnika Gdańska. Wydział Inżynierii Mechanicznej i Okrętownictwa
Tematy:
lifeboat
rescue boat launch
innovation
launch ramp aft
computational model for simulation lifeboat
computational model for simulation
Opis:
This paper is a continuation of the work titled : “A computational model for simulation of motion of rescue module during its launching from stern ramp of a ship at rough sea”. It presents results of computer simulations of motion of a rescue module with embarked persons during its launching on rollers along stern ramp of a ship at rough sea. The simulations were conducted for a selected ship fitted with a launching ramp , for a few selected scenarios of sea conditions. It was assumed that during this operation the ship drifts across direction of wave propagation.
Źródło:
Polish Maritime Research; 2014, 3; 54-60
1233-2585
Pojawia się w:
Polish Maritime Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A design concept of fire protection system for an ecological floating dock
Autorzy:
Dymarski, C.
Śledź, D.
Powiązania:
https://bibliotekanauki.pl/articles/260325.pdf
Data publikacji:
2005
Wydawca:
Politechnika Gdańska. Wydział Inżynierii Mechanicznej i Okrętownictwa
Tematy:
floating dock
electric installations
fire protection systems
Opis:
This paper presents possible fire risks to an ecological floating dock and a design concept of its fire prevention system. The design concept covers: the water main fire system, froth- smothering system for fire prevention of the main deck area and CO2 – fire extinguishing system for fire prevention of engine room, workshop and cable duct of the dock.
Źródło:
Polish Maritime Research; 2005, S 1; 70-76
1233-2585
Pojawia się w:
Polish Maritime Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Anchoring and mooring equipment for a two-segment inland waterways ship
Autorzy:
Dymarski, C.
Nakielski, J.
Powiązania:
https://bibliotekanauki.pl/articles/260467.pdf
Data publikacji:
2006
Wydawca:
Politechnika Gdańska. Wydział Inżynierii Mechanicznej i Okrętownictwa
Tematy:
inland waterways ships
shipboard equipment
anchoring and mooring equipment
Opis:
This paper presents a review and analysis of anchoring and mooring equipment for contemporary inland waterways ships. Also, a design proposal of such equipment for a two-segment passenger ship as well as a list of selected components of the equipment and plan of their arrangement on the ship’s deck, is presented.
Źródło:
Polish Maritime Research; 2006, S 2; 72-75
1233-2585
Pojawia się w:
Polish Maritime Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A concept of pusher - barge coupling device of two-segment ship for inland waterways and coastal service
Autorzy:
Dymarski, C.
Rolbiecki, R.
Powiązania:
https://bibliotekanauki.pl/articles/260471.pdf
Data publikacji:
2006
Wydawca:
Politechnika Gdańska. Wydział Inżynierii Mechanicznej i Okrętownictwa
Tematy:
ship devices
hydraulic drive and control
Opis:
This paper presents design assumptions and a constructional concept of the device for coupling the pusher and hotel barge of two-segment inland waterways and coastal ship. The presented device makes it possible to reach either stiff connection or mutually controlled inclination of both segments against each other, which greatly improves the ship’s manoeuvrability and thus safety of navigation especially on narrow and meandering waterways.
Źródło:
Polish Maritime Research; 2006, S 2; 76-79
1233-2585
Pojawia się w:
Polish Maritime Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Automatic control systems for ships fitted with podded propulsion drive (POD)
Autorzy:
Dymarski, C.
Dąbrowski, K.
Powiązania:
https://bibliotekanauki.pl/articles/962799.pdf
Data publikacji:
2004
Wydawca:
Politechnika Gdańska. Wydział Inżynierii Mechanicznej i Okrętownictwa
Tematy:
ship propulsion
azimuthal propulsion
ship control systems
Opis:
The paper shows purposefulness and possiblity of automation of ship propulsion systems, especially those of POD type, intended to be used on four Baltic navigation ships: a containership, ro-ro ship, product tanker, as well as river-sea-going ship, designed within the frame of the Eureka "Baltecologicalship" project. Requirements of ship classification societies, and general ones for modern ship control systems were presented, as well as a review and analysis of currently applied power plant automation systems for diesel- electric ships fitted with podded propulsion drive (POD), were performed. Moreover real ways and possibilities of controlling ship s course and speed were indicated. Information contained in this paper may facilitate selecting appropriate design assumptions for a propulsion control system to be applied on the above mantioned ships.
Źródło:
Polish Maritime Research; 2004, S 1; 83-86
1233-2585
Pojawia się w:
Polish Maritime Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Computational model for simulation of lifeboat motions during its launching from ship in rough seas
Autorzy:
Dymarski, P.
Dymarski, C.
Powiązania:
https://bibliotekanauki.pl/articles/259137.pdf
Data publikacji:
2012
Wydawca:
Politechnika Gdańska. Wydział Inżynierii Mechanicznej i Okrętownictwa
Tematy:
ship in rough seas
life saving appliances (LSA)
lifeboat launching
lifeboat motions
lifeboat launching simulation
Opis:
This paper presents a computational model which describes motion of an object of six degrees of freedom (DoF), intended for simulation of spatial motion of one- or two- rope-sling lifeboat or rescue boat during its launching from ship in rough sea. This is a complex model which accounts for sea conditions as well as elasticity and damping properties of davit’s elements and mechanisms, rope and boat hull. Also, are presented results of example calculations for an assumed set of technical parameters of davit and boat as well as sea conditions.
Źródło:
Polish Maritime Research; 2012, 3; 45-52
1233-2585
Pojawia się w:
Polish Maritime Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A numerical model to simulate the motion of a lifesaving module during its launching from the ship’s stern ramp
Autorzy:
Dymarski, P.
Dymarski, C.
Powiązania:
https://bibliotekanauki.pl/articles/260530.pdf
Data publikacji:
2014
Wydawca:
Politechnika Gdańska. Wydział Inżynierii Mechanicznej i Okrętownictwa
Tematy:
lifeboat
rescue boat launch
innovation
launch ramp aft
computational model for simulation
Opis:
The article presents a numerical model of object motion in six degrees of freedom (DoF) which is intended to be used to simulate 3D motion of a lifesaving module during its launching from a ship using a stern ramp in rough sea. The model, of relatively high complexity, takes into account both the motion of the ship on water in changing sea conditions, and the relative motion of the ramp with respect to the ship. The motion of the ramp changes and strongly depends on its constructional and geometrical parameters. The presented model takes into account the displacement of the submerged part of the ramp, as well as its damping in the water and the interaction with the module moving on it. The results of test simulation of a module launching from the ship in still water are included.
Źródło:
Polish Maritime Research; 2014, 2; 34-40
1233-2585
Pojawia się w:
Polish Maritime Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Numerical investigations of the engine cooling system in a small power vessel pod propulsion system
Autorzy:
Dymarski, C.
Leśniewski, W.
Powiązania:
https://bibliotekanauki.pl/articles/258590.pdf
Data publikacji:
2008
Wydawca:
Politechnika Gdańska. Wydział Inżynierii Mechanicznej i Okrętownictwa
Tematy:
azimuthing electric propulsion
pod propeller
heat transfer
cooling system
Opis:
The development of electronics and electrotechnology enabled to put electric motors of the alternating current in the pod and to use them for the main drive of ships. A lot of heat which must be picked up from the system is a problem which is turning up at applying the system of this type. Many big ships lately contended with these problems. Building the small propeller for the boat powered with solar power we decided to check the influence of the chilling middle on the temperature of the work of an engine. In the article we are presenting a built propeller and a way, into which an issue of the exchange of the heat was analysed using the Fluent software.
Źródło:
Polish Maritime Research; 2008, 4; 59-65
1233-2585
Pojawia się w:
Polish Maritime Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Calculation of motion trajectory and geometric parameters of the trawl during pelagic fishing
Autorzy:
Dymarski, C.
Nakielski, J.
Powiązania:
https://bibliotekanauki.pl/articles/259109.pdf
Data publikacji:
2009
Wydawca:
Politechnika Gdańska. Wydział Inżynierii Mechanicznej i Okrętownictwa
Tematy:
sea fishing
trawl fishing
physical and mathematical model of trawling
Opis:
This paper presents a mathematical model of the mass centre motion trajectory of the trawl, its main geometrical parameters, way of solving the model as well as its example results. It could be useful to define optimum parameters of safe, effective and environmentally friendly pelagic fishing.
Źródło:
Polish Maritime Research; 2009, 4; 51-56
1233-2585
Pojawia się w:
Polish Maritime Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Laboratory test rig for examining aggregate mining from seabed using the Airlift method
Autorzy:
Dymarski, C.
Pająk, T.
Powiązania:
https://bibliotekanauki.pl/articles/259587.pdf
Data publikacji:
2018
Wydawca:
Politechnika Gdańska. Wydział Inżynierii Mechanicznej i Okrętownictwa
Tematy:
Airlift method
Airlift test rig
deep-level mining
Opis:
The use of the Airlift method for transporting the mined aggregate from the seabed to the deck of the mining ship is an alternative for presently used solutions, such as suction pumps or scoop transport for instance. Building the laboratory test rig was preceded by tests in natural conditions. The rig was designed in such a way as to model these conditions as close as possible, and to have potential for further development.
Źródło:
Polish Maritime Research; 2018, S 1; 145-150
1233-2585
Pojawia się w:
Polish Maritime Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Comparative analysis of selected design variants of propulsion system for an inland waterways ship
Autorzy:
Dymarski, C.
Rolbiecki, R.
Powiązania:
https://bibliotekanauki.pl/articles/259631.pdf
Data publikacji:
2006
Wydawca:
Politechnika Gdańska. Wydział Inżynierii Mechanicznej i Okrętownictwa
Tematy:
elektryczny układ napędowy
hydrauliczny układ napędowy
układ napędowy statku
ship propulsion systems
combustion-electric driving system
combustion-hydraulic driving system
Opis:
In this paper are presented design assumptions and technical conditions as well as selected design versions of propulsion system for an inland waterways ship, and also a preliminary comparative analysis of two solutions. In the first version this is a combustion-electric system fitted with frequency converter and in the other - combustion-hydraulic one with hydrostatic reduction gear.
Źródło:
Polish Maritime Research; 2006, 1; 3-7
1233-2585
Pojawia się w:
Polish Maritime Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-15 z 25

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