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Tytuł:
Modelling environment and infrastructure of shipyard transportation systems and processes
Autorzy:
Blokus-Roszkowska, A.
Kołowrocki, K.
Powiązania:
https://bibliotekanauki.pl/articles/2069554.pdf
Data publikacji:
2008
Wydawca:
Uniwersytet Morski w Gdyni. Polskie Towarzystwo Bezpieczeństwa i Niezawodności
Tematy:
ship transportation system
ship operation process
semi-markov process
system in varying operation
Opis:
In the paper an analytical model of port transportation systems environment and infrastructure influence on their operation processes is constructed and presented in an example of shipyard rope transportation systems in Naval Shipyard in Gdynia. A general semi-markov model of a system operation process is proposed and the methods of its parameters statistical identification are presented. Further, the shipyard rope transportation system and the ship rope elevator operation processes are analyzed and their operation states are defined. A preliminary collection of statistical data necessary to the ship transportation systems’ operation processes identification is included.
Źródło:
Journal of Polish Safety and Reliability Association; 2008, 1; 77--84
2084-5316
Pojawia się w:
Journal of Polish Safety and Reliability Association
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Energy-efficient Ship Operation – Training Requirements and Challenges
Autorzy:
Baldauf, M.
Baumler, R.
Olcer, A.
Nakazawa, T.
Benedict, K.
Fischer, S.
Schaub, M.
Powiązania:
https://bibliotekanauki.pl/articles/116480.pdf
Data publikacji:
2013
Wydawca:
Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
Tematy:
Energy-Efficient Ship Operation
Maritime Environmental Protection Committee (MEPC)
Marpol
Opis:
The International Maritime Organization (IMO), through its Maritime Environmental Protection Committee (MEPC), has been carrying out substantive work on the reduction and limitation of greenhouse gas emissions from international shipping since 1997, following the adoption of the Kyoto Protocol and the 1997 MARPOL Conference. While to date no mandatory GHG instrument for international shipping has been adopted, IMO has given significant consideration of the matter and has been working in accordance with an ambitious work plan with a view to adopting a package of technical provisions. Beside the efforts undertaken by IMO, it is assumed that e.g. optimized manoeuvring regimes have potential to contribute to a reduction of GHG emissions. Such procedures and supporting technologies can decrease the negative effects to the environment and also may reduce fuel consumption. However, related training has to be developed and to be integrated into existing course schemes accordingly. IMO intends to develop a Model Course aiming at promoting the energy‐efficient operation of ships. This Course will contribute to the IMO’s environmental protection goals as set out in resolutions A.947(23) and A.998(25) by promulgating industry “best practices”, which reduce greenhouse gas emissions and the negative impact of global shipping on climate change. In this paper the outline of the research work will be introduced and the fundamental ideas and concepts are described. A concept for the overall structure and the development of suggested detailed content of the draft Model course will be exemplarily explained. Also, a developed draft module for the model course with samples of the suggested integrated practical exercises will be introduced and discussed. The materials and data in this publication have been obtained partly through capacity building research project of IAMU kindly supported by the International Association of Maritime Universities (IAMU) and The Nippon Foundation in Japan.
Źródło:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2013, 7, 2; 283-290
2083-6473
2083-6481
Pojawia się w:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A simulation analysis of behaviour of ship-borne helicopter main rotor due to ship motion
Autorzy:
Stanisławski, J.
Powiązania:
https://bibliotekanauki.pl/articles/243038.pdf
Data publikacji:
2016
Wydawca:
Instytut Techniczny Wojsk Lotniczych
Tematy:
helicopter
rotor blade
ship deck operation
Opis:
The paper presents a simulation method of analysis of the couplings between rotor blades motion and helicopter fuselage standing on ship deck at the phase of take-off or landing when whirling rotor generates thrust less than weight of the helicopter. The oscillating motion of the ship deck due to waves is considered. The physical model includes the helicopter fuselage treated as the stiff body supported by units of springs and dampers corresponding to landing gear characteristics. The rotor blades are modelled by elastic axes with distributed lumped masses of blade segments. The equations of fuselage and rotor blades motion are solved applying Runge-Kutta method. According to the Galerkin method, parameters of rotor blades motion are assumed as a resultant combination of considered blade torsion and bending eigen modes. Data of the light helicopter with three-bladed rotor are applied for the simulation of the rotorcraft behaviour aboard the ship. The calculations concerning helicopter standing on the fixed plane and on oscillating ship deck show influence of ship movement on fuselage motion and rotor blades deflections, flapping, and lead-lag motion. Moreover, simulations show influence of the side wind and control of the rotor swash-plate deflections. The additional unit of blade eigen modes and frequencies is applied to model the blade hitting to the flapping limiter, which can occur at the low rotation speed of the rotor. Temporary contact of the articulated blade with limiter changes its boundary conditions, which can rapidly increase the blade bending moments. The simulation method enables to determine conditions of safe operations of ship-borne helicopters without exceeding the limits and generating the excessive blade loads.
Źródło:
Journal of KONES; 2016, 23, 1; 313-320
1231-4005
2354-0133
Pojawia się w:
Journal of KONES
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Human and operational factors in the risk assessment of ship-to-ship operations
Autorzy:
Abramowicz-Gerigk, T.
Hejmlich, A.
Wilczyński, P.
Powiązania:
https://bibliotekanauki.pl/articles/135492.pdf
Data publikacji:
2018
Wydawca:
Akademia Morska w Szczecinie. Wydawnictwo AMSz
Tematy:
ship to ship operation
risk assessment
human factor
operational factors
ship handling errors
stress levels
Opis:
This paper presents human and operational factors related to risk assessment during the operations of crude oil, petroleum products, and liquefied gas transfer between ships, called Ship to Ship (STS) operations. The lessons learned from accidents during STS when both ships are underway show that the most frequent accidents occur due to ship handling errors. Several influencing factors have already been identified, however there is still a need to investigate the human factor. Both human and operational factors are interrelated as the operational factors influence the human stress level. This paper identifies the stressors related to the external pressures imposed on the ship’s staff, which can be limited to improve safety. The preliminary study of the influence of particular elements of human factors, e.g., personality traits and stress levels, on the probability of ship handling error is presented.
Źródło:
Zeszyty Naukowe Akademii Morskiej w Szczecinie; 2018, 56 (128); 73-77
1733-8670
2392-0378
Pojawia się w:
Zeszyty Naukowe Akademii Morskiej w Szczecinie
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Conditions of safe ship operation in sea waterway systems
Autorzy:
Gucma, S.
Powiązania:
https://bibliotekanauki.pl/articles/359136.pdf
Data publikacji:
2013
Wydawca:
Akademia Morska w Szczecinie. Wydawnictwo AMSz
Tematy:
marine traffic engineering
sea waterway systems
traffic control
safe ship operation
algorithm
Opis:
The article presents an algorithm developed for determining conditions of safe ship operation in a system of sea waterways consisting of three components, or subsystems: waterways, navigation and traffic control. A model of the optimization of sea waterway system parameters is described.
Źródło:
Zeszyty Naukowe Akademii Morskiej w Szczecinie; 2013, 36 (108) z. 1; 55-58
1733-8670
2392-0378
Pojawia się w:
Zeszyty Naukowe Akademii Morskiej w Szczecinie
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Steady-state Manoeuvring of a Generic ASD Tug in Escort Pull and Bow-rope Aided Push Operation
Autorzy:
Artyszuk, J.
Powiązania:
https://bibliotekanauki.pl/articles/116244.pdf
Data publikacji:
2014
Wydawca:
Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
Tematy:
Ship Operation
Generic ASD Tug
Manoeuvring
Steady-State Manoeuvring
Pushing Operation
Towing
Hydrodynamics
Tug's Dynamics
Opis:
This paper is devoted to expand the very promising research undertaken in the author's previous work, basically done on simplified modelling the escort push operation. Now, the other two modes of a tug's employment, as stated in the title, are covered. The special focus is again set on the indirect towing in that the towline force is much higher than the thruster force. The ratio of these two forces, referred to as the relative towing force (or amplification ratio) is evaluated together with the hull drift angle and the thruster(-s) angle for a given escort speed. This mutual relationship is known as the tug performance diagram. Although rather generic (container-type) formulas are derived, they are supplied for exemplification purposes with simple, analytically given hull hydrodynamic forces. The aim is also here to provide a basis for further sensitivity analysis of the model and possible improvement/optimisation to the tug design. The obtained charts also could serve as rough and clear guidance for towmasters while escorting.
Źródło:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2014, 8, 3; 449-457
2083-6473
2083-6481
Pojawia się w:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Possibilities of Fulfillment and Consequences of Introducing the Carbon Intensity Indicator in International Shipping
Autorzy:
Herdzik, Jerzy
Powiązania:
https://bibliotekanauki.pl/articles/27315759.pdf
Data publikacji:
2023
Wydawca:
Politechnika Koszalińska. Wydawnictwo Uczelniane
Tematy:
IMO regulations
ship operation
climate targets
energy efficiency indicators
environment protection
greenhouse gases
Opis:
Maritime transport contributes to stimulating the development of civilisation. According to the European Environment Agency, around 1/4 of the total CO2 emissions in the EU in 2019 came from the transport sector, of which 71.7% were from road transport. The share of CO2 emissions from maritime transport is estimated to be about 3% of the world's. In terms of energy demand for moving a specific load over a specific distance, it is currently the cheapest form of transport. The International Maritime Organization's activities aim to reduce the environmental impact of this form of transport. The article discusses the expected effects of the regulations introduced until 2023. Regulations have a significant impact on the increase in transport costs. There may be far-reaching changes in the shipping market that have an indirect (rather unintended) effect due to the introduced regulations. "Side effects" can be very severe, especially for shipowners with a small number of ships. The article attempts to draw attention to such threats.
Źródło:
Rocznik Ochrona Środowiska; 2023, 25; 250--255
1506-218X
Pojawia się w:
Rocznik Ochrona Środowiska
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Approximate Method of Calculating Forces on Rudder During Ship Sailing on a Shipping Route
Autorzy:
Żelazny, K.
Powiązania:
https://bibliotekanauki.pl/articles/116163.pdf
Data publikacji:
2014
Wydawca:
Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
Tematy:
Ship Operation
Rudder
Hydrodynamics
Plane Rudder
Ship Design
Forces on Plane Rudder
Hydrodynamic Forces
Forces Calculation
Opis:
Service speed of a ship in real weather conditions is a basic design parameter. Forecasting of this speed at preliminary design stage is made difficult by the lack of simple but at the same accurate models of forces acting upon a ship sailing on a preset shipping route. The article presents a model for calculating forces and moment on plane rudder, useful for forecasting of ship service speed at preliminary stages of ship design.
Źródło:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2014, 8, 3; 459-464
2083-6473
2083-6481
Pojawia się w:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Assessment of the concept of the new methodology for the evaluation of ship planned maintenance system
Autorzy:
Stanivuk, T.
Stazić, L.
Vidović, F.
Bratić, K.
Powiązania:
https://bibliotekanauki.pl/articles/2063953.pdf
Data publikacji:
2021
Wydawca:
Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
Tematy:
ship operation problems
maintenance system
Planned Maintenance System
assessment process
expert opinion
onboard maintenance
Opis:
The paper presents an attempt to develop better and cheaper methodology for evaluation of the quality of the ships’ computerized Planned Maintenance System databases. A concept for the better methodology has been developed following many times verified rule that faster and cheaper is better. The concept of the methodology has been checked in operation, tested on four different databases. Results of the evaluation performed by the concept are compared with an expert evaluation using old, verified methodology, performed on same databases. Comparison valuated the concept, bringing the verdict if it is functioning or not, showing that the old and verified rule is not functioning every time.
Źródło:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2021, 15, 3; 739--742
2083-6473
2083-6481
Pojawia się w:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Determination of the Cruise Vessels Seasonal Pattern in Eastern Adriatic
Autorzy:
Stanivuk, T.
Mišura, A.
Stazić, L.
Štolfa, I.
Powiązania:
https://bibliotekanauki.pl/articles/2063949.pdf
Data publikacji:
2021
Wydawca:
Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
Tematy:
ship operation problems
cruise vessels
Eastern Adriatic
Adriatic Sea
Cruise Ship Arrivals
seasonal pattern
ship size
duration of ship visit
Opis:
The notion of a seasonal pattern of cruise ships has been used frequently, but very few authors have analysed all the features of this pattern. This article adds some new insights on this topic by analysing cruise ship activity in the three largest ports on the east coast of Adriatic Sea in 2017 and 2018. The article presents an analysis of cruise ship arrivals at the ports and compares the analysis to the established pattern in the Mediterranean, revealing the nature of the seasonal pattern for the ports analysed. In addition, two further analyses were carried out, firstly the analysis of ship size, which determines new characteristics of the seasonal pattern. The second additional analysis considered the duration of ship visit during different times of the year and determined another pattern characteristic.
Źródło:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2021, 15, 3; 743--748
2083-6473
2083-6481
Pojawia się w:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A Method of Assessment of the Liquid Sloshing Impact on Ship Transverse Stability
Autorzy:
Krata, P.
Powiązania:
https://bibliotekanauki.pl/articles/117159.pdf
Data publikacji:
2014
Wydawca:
Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
Tematy:
ship operation
liquid sloshing phenomenon
liquid sloshing
computational fluid dynamics (CFD)
hydrodynamics
ship stability
ship transverse stability
dynamic heeling moment
Opis:
Liquid sloshing phenomenon taking place in partly filled ships’ tanks directly affects the stability of a vessel. However, only static calculations are carried out onboard ships nowadays and static transfer of liquid weight is taken into account in the course of routine stability calculation. The paper is focused on a dynamic heeling moment due to liquid sloshing in tanks onboard ships. The set of numerical simulations of liquid sloshing taking place in moving tanks is carried out. The realistic range of geometric parameters is taken into account. The conducted CFD simulations are experimentally verified. Finally, the method of an assessment of the liquid sloshing impact on ship transverse stability is worked out. The key point of the method is a dynamic coefficient describing relation of the researched dynamic heeling moment and the quasi-static one in terms of dynamic stability of a vessel which is related to the weather criterion of ship stability assessment.
Źródło:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2014, 8 no. 4; 535-541
2083-6473
2083-6481
Pojawia się w:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Performances in tank cleaning
Autorzy:
Panaitescu, V. A.
Panaitescu, M.
Panaitescu, F. V.
Martes, L.
Powiązania:
https://bibliotekanauki.pl/articles/116037.pdf
Data publikacji:
2018
Wydawca:
Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
Tematy:
tank cleaning
ship operation
chemicals
impact cleaning
rinsing
ultra-violet spectroscopy
MARPOL
Permanganate Time Test (PTT)
Opis:
There are several operations which must do to maximize the performance of tank cleaning. The new advanced technologies in tank cleaning have raised the standards in marine areas. There are many ways to realise optimal cleaning efficiency for different tanks. The evaluation of tank cleaning options means to start with audit of operations: how many tanks require cleaning, are there obstructions in tanks (e.g. agitators, mixers), what residue needs to be removed, are cleaning agents required or is water sufficient, what methods can used for tank cleaning. After these steps, must be verify the results and ensure that the best cleaning values can be achieved in terms of accuracy and reliability. Technology advancements have made it easier to remove stubborn residues, shorten cleaning cycle times and achieve higher levels of automation. In this paper are presented the performances in tank cleaning in accordance with legislation in force. If tank cleaning technologies are effective, then operating costs are minimal.
Źródło:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2018, 12, 1; 159-163
2083-6473
2083-6481
Pojawia się w:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Experiences with gas engines during practical ship operations – impact of load fluctuations during generator operations on the ship’s power grid
Autorzy:
Rother, S.
Watter, H.
Powiązania:
https://bibliotekanauki.pl/articles/135382.pdf
Data publikacji:
2018
Wydawca:
Akademia Morska w Szczecinie. Wydawnictwo AMSz
Tematy:
LNG
gas engine
dual-fuel engine
load fluctuation
MODELICA
simulation
fluid dynamics
thermodynamics
practical advice
ship operation
Opis:
Liquefied natural gas (LNG) qualifies as sustainable and secure marine fuel that is reliable in supply. The international standards (IGF Code) and classification regulations have been aligned. First experiences in ship operations and design are now available. Initial reports from the practical ship operations show that the lack of knowledge and misjudgements of original equipment manufacturers (OEM’s), suppliers, consulting services and flag state authorities have led to operational restrictions or expensive retrofitting. The aim of this paper is to illustrate first experiences and operating instructions using this new and different marine fuel; derive recommendations for instructions for education and training programmes at maritime colleges, universities and business partners; present action recommendations for future operational concepts.
Źródło:
Zeszyty Naukowe Akademii Morskiej w Szczecinie; 2018, 55 (127); 44-50
1733-8670
2392-0378
Pojawia się w:
Zeszyty Naukowe Akademii Morskiej w Szczecinie
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Drag and Torque on Locked Screw Propeller
Autorzy:
Tabaczek, T.
Bugalski, T.
Powiązania:
https://bibliotekanauki.pl/articles/117621.pdf
Data publikacji:
2014
Wydawca:
Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
Tematy:
Ship Operation
Locked Screw Propeller
Propulsion System
Propeller Drop
Propeller Torque
CFD Computations
Hydrodynamics
Sailboat Fixed Blade Propeller
Opis:
Few data on drag and torque on locked propeller towed in water are available in literature. Those data refer to propellers of specific geometry (number of blades, blade area, pitch and skew of blades). The estimation of drag and torque of an arbitrary propeller considered in analysis of ship resistance or propulsion is laborious. The authors collected and reviewed test data available in the literature. Based on collected data there were developed the empirical formulae for estimation of hydrodynamic drag and torque acting on locked screw propeller. Supplementary CFD computations were carried out in order to prove the applicability of the formulae to modern moderately skewed screw propellers.
Źródło:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2014, 8, 3; 441-447
2083-6473
2083-6481
Pojawia się w:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Considerations on limiting the elements of human factor influence on breakdowns of ships machinery illustrated by some case studies
Rozważania dotyczące ograniczenia wpływu elementów czynnika ludzkiego na awarie w siłowni okrętowej ilustrowane opisem pewnych charakterystycznych przypadków
Autorzy:
Listewnik, J.
Wiewióra, A.
Powiązania:
https://bibliotekanauki.pl/articles/258330.pdf
Data publikacji:
2007
Wydawca:
Sieć Badawcza Łukasiewicz - Instytut Technologii Eksploatacji - Państwowy Instytut Badawczy
Tematy:
czynnik ludzki
znaczenie
bezpieczna eksploatacja
statek
globalizacja załóg
human element
importance
safe ship operation issues
globalisation of crew
Opis:
The paper in the first part introduces the reader into general issues contributing to the complex role of the human factor in safe ship operation. Futher the capacity that the International Maritime Organisation (IMO) attaches to the human element in shipping is discussed. Next, the International Safety Management (ISM) role towards safer ship operation and the economic viability of a shipowner is highlighted. The last part of the paper contains two case studies, the first illustrating the need for training expertise and certification for shipboard electrical officers and the second case giving an example how not observing simple procedures and checklists by the crew can lead to fatal and costly accident.
Artykuł w pierwszej części wprowadza czytelnika w ogólne problemy mające swój wkład w złożoną rolę czynnika ludzkiego w bezpiecznej eksploatacji statku. Rozpatrywany jest zakres roli, jaką Międzynarodowa Organizacja Morska (IMO) przywiązuje do elementu ludzkiego w żegludze. Następnie została przedyskutowana rola Międzynarodowego kodu bezpiecznego zarządzania (International Safety Management - ISM) z punktu widzenia bezpiecznej eksploatacji statku i ekonomicznej korzyści dla armatora. Ostatnia część artykułu zawiera opisy dwóch specyficznych awarii na statkach; pierwszy opis awarii "A" ilustruje konieczność szkolenia ekspertów i wydawania odpowiednich świadectw dla oficerów elektryków, drugi przypadek "B" stanowi przykład, jak nieprzestrzeganie przez załogę prostych procedur i list sprawdzających może prowadzić do fatalnych i kosztownych awarii.
Źródło:
Problemy Eksploatacji; 2007, 3; 147-157
1232-9312
Pojawia się w:
Problemy Eksploatacji
Dostawca treści:
Biblioteka Nauki
Artykuł
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