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Tytuł:
Model of ferry captain’s manoeuvres decision
Autorzy:
Kowalski, A.
Powiązania:
https://bibliotekanauki.pl/articles/359020.pdf
Data publikacji:
2012
Wydawca:
Akademia Morska w Szczecinie. Wydawnictwo AMSz
Tematy:
ferry manoeuvres
Bayesian networks
probabilistic model
decision model
Opis:
The paper introduces the results of research concerning modelling of ferry captain’s manoeuvres decision. The author’s probabilistic model has been validated with real time manoeuvres of the ferry m/f “Polonia” at the Ystad harbour by using Bayesian belief networks. Variables, quality factors, network example, model’s suggested settings of propellers and rudder for selected real manoeuvres have also been presented. Comparison to existing methods and models has also been presented. Finally, there are some conclusions concerning the described model. Are also included some proposed practical applications.
Źródło:
Zeszyty Naukowe Akademii Morskiej w Szczecinie; 2012, 32 (104) z. 2; 98-102
1733-8670
2392-0378
Pojawia się w:
Zeszyty Naukowe Akademii Morskiej w Szczecinie
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Risk Analysis of Ships Manoeuvres Carried Out on the Basis of Integrated Navigation Systems (INS) Indications
Autorzy:
Tomczak, A.
Powiązania:
https://bibliotekanauki.pl/articles/320859.pdf
Data publikacji:
2010
Wydawca:
Polskie Forum Nawigacyjne
Tematy:
risk
ship's manoeuvres
navigation
Opis:
In the safety evaluation of manoeuvres carried out on the basis of INS indications, the real ship's dimensions are used to determine navigation safety level. The paper presents a new approach to this problem. The ship's maneuvering area and collision probability were calculated incorporating uncertainty areas of ship's plan geometry at given probability level for typical configuration of navigational equipment applied in existing pilot systems. The widening coefficients of safety factors for each configuration set were determined and discussed. The most economically advantageous configuration of navigation system was chosen.
Źródło:
Annual of Navigation; 2010, 16; 131-139
1640-8632
Pojawia się w:
Annual of Navigation
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Classification of elemental manoeuvres observed during ship handling training employing manned ship models
Autorzy:
Misiąg, W. A.
Powiązania:
https://bibliotekanauki.pl/articles/260323.pdf
Data publikacji:
2007
Wydawca:
Politechnika Gdańska. Wydział Inżynierii Mechanicznej i Okrętownictwa
Tematy:
manoeuvring
elemental manoeuvres
fuzzy clustering
trajectory
manned models
Opis:
The paper presents a concept of elemental manoeuvres that may be used for analysis of ship handling training (including the training with manned model ships) and for simulation of complex manoeuvring scenarios. It shows a set of postulated elemental manoeuvres. A fuzzy clustering method is introduced and applied for the classification of manoeuvring patterns. The fuzzy clustering algorithm is used for the extraction of elemental manoeuvres from the records of ship handling manoeuvres of LCC model ship. The best set of variables for the extraction of elemental manoeuvres consists of normalised ship velocities and controls.
Źródło:
Polish Maritime Research; 2007, S 2; 54-59
1233-2585
Pojawia się w:
Polish Maritime Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Evolutionary sets of safe ship trajectories with speed reduction manoeuvres within traffic separation schemes
Autorzy:
Szłapczyński, R.
Powiązania:
https://bibliotekanauki.pl/articles/260256.pdf
Data publikacji:
2014
Wydawca:
Politechnika Gdańska. Wydział Inżynierii Mechanicznej i Okrętownictwa
Tematy:
collision avoidance manoeuvres
track planning
Traffic Separation Schemes
speed reduction
Opis:
In the previous paper the author presented the evolutionary ship trajectory planning method designed to support Traffic Separation Schemes (TSS). This time the extensions of this method are described which allow to combine evolutionary trajectory planning with speed reduction manoeuvres. On TSS regions with higher than usual density of traffic and smaller distances between ships, the course alterations alone are not always sufficient or effective means of collision avoidance. Therefore they must be supplemented by speed reduction manoeuvres to a larger extent than on open waters. The paper includes a brief description of the optimisation problem, descriptions of the new elements of the method (fitness function, algorithms and the evolutionary cycle) and the examples of how the extended method successfully solves the problems unsolvable without applying speed reduction.
Źródło:
Polish Maritime Research; 2014, 1; 20-27
1233-2585
Pojawia się w:
Polish Maritime Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Model of sea going ferries moorings manoeuvres decisions
Model decyzji manewrowych cumowania promów morskich
Autorzy:
Kowalski, A.
Powiązania:
https://bibliotekanauki.pl/articles/359451.pdf
Data publikacji:
2010
Wydawca:
Akademia Morska w Szczecinie. Wydawnictwo AMSz
Tematy:
decyzje manewrowe
model manewrowania
proces budowy modelu
manoeuvres decisions
manoeuvring model
process of model building
Opis:
The paper presents the researches of manoeuvring model of the ferry m/f "Polonia" at the Ystad harbour. Manoeuvring decisions recognition system based on probabilistic model by using the Bayesian belief networks has been proposed. Suggested variables necessary for defined nodes of network, methods of converting into discrete variables have also been presented. Finally there are some conclusions and suggestions concerning constructed model.
W artykule przedstawiono model manewrowania promu m/f "Polonia" w porcie Ystad. Omówiono koncepcję budowy systemu rozpoznawania decyzji manewrowych, bazującego na wykorzystaniu sieci bayerowskich. Zaprezentowano zmienne konieczne do zdefiniowania węzłów sieci wraz z możliwościami ich dyskretyzacji. W zakończeniu artykułu zamieszczono spostrzeżenia i wnioski dotyczące procesu budowy modelu.
Źródło:
Zeszyty Naukowe Akademii Morskiej w Szczecinie; 2010, 20 (92); 71-74
1733-8670
2392-0378
Pojawia się w:
Zeszyty Naukowe Akademii Morskiej w Szczecinie
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Traffic engineering methods solutions of problems concerning ship’s manoeuvres and sailing on the large rivers of Central America
Autorzy:
Kowalski, A.
Powiązania:
https://bibliotekanauki.pl/articles/359629.pdf
Data publikacji:
2013
Wydawca:
Akademia Morska w Szczecinie. Wydawnictwo AMSz
Tematy:
ocean going ships river’s navigation
manoeuvres
traffic engineering
sea transport safety
navigational practice
Opis:
The paper introduces some aspects of maximum size ocean going ship’s safety during the sailing on Central American rivers. Based on solution of above problems, presented necessary hydrographical information concerning River Orinoco, Mississippi, Rio Magdalena and the most biggest of the World – Amazon River. Solutions of several river’s navigational and manoeuvres problems suggested by Traffic Engineering have also been presented. Independently, there are suggestions concerning improvements of the sea transport safety in the river’s estuary.
Źródło:
Zeszyty Naukowe Akademii Morskiej w Szczecinie; 2013, 33 (105); 57-61
1733-8670
2392-0378
Pojawia się w:
Zeszyty Naukowe Akademii Morskiej w Szczecinie
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
CFD Based Hull Hydrodynamic Forces for Simulation of Ship Manoeuvres
Autorzy:
Tabaczek, T.
Gornicz, T.
Kulczyk, J.
Powiązania:
https://bibliotekanauki.pl/articles/117623.pdf
Data publikacji:
2009
Wydawca:
Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
Tematy:
Manoeuvring
Simulation of Ship Manoeuvres
Equations of Ship's Movement
Hydrodynamic Forces
CFD Computations
Hydrodynamic Characteristics
Ship's Motion
mathematical model
Opis:
There have been developed numerous mathematical models describing the motion of a ship. In opinion of present authors the CFD is mature enough to determine with confidence the hydrodynamic characteristics necessary to simulate ship manoeuvres. In this paper the authors present the attempt to determine the hull hydrodynamic forces using the results of CFD computations of ship flow. Results show qualitative agreement with reference data and reveal shortcomings due to simplifying assumptions applied in CFD computations.
Źródło:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2009, 3, 1; 31-35
2083-6473
2083-6481
Pojawia się w:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
An improved numerical approach for inverse simulations of aircraft manoeuvres
Autorzy:
Kowaleczko, G.
Powiązania:
https://bibliotekanauki.pl/articles/280603.pdf
Data publikacji:
2001
Wydawca:
Polskie Towarzystwo Mechaniki Teoretycznej i Stosowanej
Tematy:
inverse simulation
flight dynamics
Opis:
Method of spatial manoeuvres modelling based on solving the inverse problem of dynamics is presented in this paper. A detailed description of the inverse problem solution is shown. To illustrate the method, results of numerical simulations for two selected manoeuvres are also included.
Modyfikacja numeryczna symulacji odwrotnej manewrów statków powietrznych. W pracy przedstawiono metodę numerycznej symulacji manewrów przestrzennych statków powietrznych. Metoda ta oparta jest rozwiązaniu zagadnienia odwrotnego. Bazuje ona na linearyzacji problemu wokół bieżącego położenia w przestrzeni stanów. Pokazano wyniki symulacji "beczki" wykonywanej przez samolot oraz "wyskoku do zawisu" realizowanego przez śmigłowiec. W drugim przypadku wyniki symulacji porównano z zapisami parametrów lotu zarejestrowanymi w czasie wykonywania takiego manewru.
Źródło:
Journal of Theoretical and Applied Mechanics; 2001, 39, 1; 65-78
1429-2955
Pojawia się w:
Journal of Theoretical and Applied Mechanics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Modelling of helicopter main rotor aerodynamic loads in manoeuvres
Autorzy:
Kowaleczko, Grzegorz
Leśniczak, Andrzej
Powiązania:
https://bibliotekanauki.pl/articles/241695.pdf
Data publikacji:
2019
Wydawca:
Instytut Techniczny Wojsk Lotniczych
Tematy:
helicopter
main rotor
aerodynamic loads
Opis:
The article discusses the method of modelling of the helicopter main rotor aerodynamic loads during steady state flight and manoeuvres. The ability to determine these loads was created by taking into account the motion of each blade relative to the hinges and was a result of the applied method of aerodynamic loads calculating. The first part of the work discusses the basic relationships that were used to build the mathematical model of helicopter flight. The focus was also on the method of calculating of the aerodynamic forces generated by the rotor blades. The results of simulations dedicated to the "jump to hover" manoeuvre were discussed, showing the possibilities of analysing aerodynamic loads occurring in unsteady flights. The main rotor is considered separately in an “autonomous” way and treated as a source of averaged forces and moments transferred to the hub. The motion of individual blades is neglected, and their aerodynamic characteristics are radically simplified. The motion of individual blades is neglected, and their aerodynamic characteristics are radically simplified. This can lead to significant errors when attempting to model dynamic helicopter manoeuvres. The more complex model of helicopter dynamics is discussed.
Źródło:
Journal of KONES; 2019, 26, 4; 273-284
1231-4005
2354-0133
Pojawia się w:
Journal of KONES
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Supporting navigator’s decisions by visualizing ship collision risk
Autorzy:
Szłapczyński, R.
Śmierzchalski, R.
Powiązania:
https://bibliotekanauki.pl/articles/258668.pdf
Data publikacji:
2009
Wydawca:
Politechnika Gdańska. Wydział Inżynierii Mechanicznej i Okrętownictwa
Tematy:
ARPA display
collision avoidance manoeuvres
collision risk
navigation
Opis:
The paper introduces a visualization method that enables the navigator to estimate an encounter situation and choose collision avoidance manoeuvre, if necessary. It is based on the Collision Threat Parameters Area method and offers new features: fuzzy sectors of forbidden speed and course values, the possibility to use any given ship domain and a new formula of collision risk assessment. All these elements result in a method, which enables the navigator to differentiate between varying levels of risk and to point out the direct threats. The method is fast enough to be applied in the real-time decision support system.
Źródło:
Polish Maritime Research; 2009, 1; 83-88
1233-2585
Pojawia się w:
Polish Maritime Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Precision of ship steering along a waterway bend with the use of ARPA information
Autorzy:
Juszkiewicz, W.
Powiązania:
https://bibliotekanauki.pl/articles/320649.pdf
Data publikacji:
2009
Wydawca:
Polskie Forum Nawigacyjne
Tematy:
ARPA
manewry statków
ship's manoeuvres
Opis:
The usage of stationary object tracking information while steering a ship along a marked waterway relies on the constant estimation of the object passing distance made by the navigator. This information is available both in the alphanumeric form (target data) and in the graphic form (relative vectors). While making decisions, the navigator has to take into consideration the limitations of ARPA devices, particularly delays in transferring information about tracked objects occurring when ships are making manoeuvres. The results of the experiment performed in the radar-navigation NMS-90 simulator, which has been conducted in order to establish the usability of the stationary object tracking information in the process of ship steering along a marked waterway are described in this article.
Źródło:
Annual of Navigation; 2009, 15; 49-53
1640-8632
Pojawia się w:
Annual of Navigation
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Evolutionary approach to ship’s trajectory planning within Traffic Separation Schemes
Autorzy:
Szłapczyński, R.
Powiązania:
https://bibliotekanauki.pl/articles/259049.pdf
Data publikacji:
2012
Wydawca:
Politechnika Gdańska. Wydział Inżynierii Mechanicznej i Okrętownictwa
Tematy:
marine navigation
Traffic Separation Schemes
collision avoidance manoeuvres
evolutionary computing
Opis:
The paper presents the continuation of the author’s research on evolutionary approach to ship trajectory planning. While the general problem of the evolutionary trajectory planning has already been solved, no one has yet touched one of its specific aspects: evolutionary trajectory planning within Traffic Separation Schemes. Traffic Separation Scheme (TSS) is a traffic-management route-system complying with rules of the International Maritime Organization. In brief, the ships navigating within a TSS all sail in the direction assigned to a particular traffic lane or they cross at a course angle as close to 90 degrees as possible. This and other TSS rules largely affect the evolutionary method. The paper presents a proposal of the extended evolutionary method, with a focus on changes that have to be made to obey TSS rules, especially the changes in the phases of evaluation and specialised operators of the evolutionary cycle.
Źródło:
Polish Maritime Research; 2012, 1; 11-20
1233-2585
Pojawia się w:
Polish Maritime Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Stopping of Ships Equipped with Azipods
Autorzy:
Nowicki, J.
Powiązania:
https://bibliotekanauki.pl/articles/117172.pdf
Data publikacji:
2014
Wydawca:
Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
Tematy:
Azipods, Propeller
Stopping od Ships
Ship Propulsion
ship model
Stopping Tests
LNG Carrier
Stopping Manoeuvres
Opis:
The paper contains a description of different possibilities of stopping a large ship equipped with azipods. The model tests were carried out to compare the effectiveness of stopping the ship using the different methods. The ship model used in stopping tests reproduces a large LNG carrier of capacity ~150 000 m3.
Źródło:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2014, 8, 3; 373-376
2083-6473
2083-6481
Pojawia się w:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Numerical analysis of MOB manoeuvres in regard to a body suffering from hypothermia
Autorzy:
Kulbiej, E.
Rosik, R.
Powiązania:
https://bibliotekanauki.pl/articles/135324.pdf
Data publikacji:
2018
Wydawca:
Akademia Morska w Szczecinie. Wydawnictwo AMSz
Tematy:
MOB
search and rescue
maneuver
Williamson turn
hypothermia
survival
Opis:
The following paper’s aim is to provide a numerical analysis of well-known man overboard (MOB) manoeuvres undertaken by vessels’ masters’ in critical situations, when a passenger or crew member falls out from a vessel. The simulation, based on a complex hydrodynamical model of a merchant ship, which compares 3 variants of this manoeuvre, shows that the Scharnov turn is the shortest and the quickest one, but the ship finishes the Anderson turn with the lowest velocity. Also, the time of the Williamson turn is short enough, to successfully finish the operation. The duration of MOB manoeuvres is likened to the results of a medical overview, with not only the duration of MOB, but also the time between falling overboard and the beginning of the manoeuvre playing a crucial role in saving a casualty’s life.
Źródło:
Zeszyty Naukowe Akademii Morskiej w Szczecinie; 2018, 54 (126); 120-126
1733-8670
2392-0378
Pojawia się w:
Zeszyty Naukowe Akademii Morskiej w Szczecinie
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Ships turning basins in ports for big container vessels
Manewry obrotu dużych kontenerowców w basenach portowych
Autorzy:
Paulauskas, V.
Powiązania:
https://bibliotekanauki.pl/articles/359437.pdf
Data publikacji:
2010
Wydawca:
Akademia Morska w Szczecinie. Wydawnictwo AMSz
Tematy:
kontenerowiec
infrastruktura portowa
manewry
container vessel
ports infrastructure
manoeuvres
Opis:
Container traffic grew very fast and many ports have prepared infrastructure and superstructure for the container vessels. During the last decade, many of Eastern Baltic ports container terminals started working with container vessels and in the same time looked for the bigger container vessels with limited possible investments (1). In many ports are very limit space inside the ports and it make additional difficulties increase entry to the ports ships size. Container terminals usually are located in the middle or in the end parts of the ports and find enough space for the ships turning basins raise difficulties. Big container vessels navigational safety must be linked with ports infrastructure, but very often ports are orientated on the old standards and design recommendations, so are trying to keep big safety coefficients regarding water ways depths, widths, and hydrometeorological conditions limitations. Old standards did not include new accuracy navigational equipment such as RTK systems, which are implemented in many ports and increase navigational possibilities and navigational safety. This paper addresses the theoretical approach of the influence of new big container vessels sailing within ports areas, namely ships turning basins, possibilities and navigational safety of the ships, which have big wind surface and good manoeuvrability.
Intensywny wzrost ruchu kontenerowców narzucił konieczność odpowiedniego przygotowania infrastruktury portowej. W ciągu ostatniej dekady wiele spośród terminali portowych na Bałtyku Wschodnim rozpoczęło współpracę ze statkami kontenerowymi, poszukując równocześnie innych dużych jednostek tego typu z ograniczonymi możliwościami inwestowania (1). W wielu portach powierzchnie ich basenów nie odpowiadają potrzebom kontenerowców, co powoduje trudności przy wejściu. Terminale dla statków kontenerowych zwykle położone są w środku lub na końcu portu i znalezienie tam odpowiedniej powierzchni, by wykonać manewr obrotu stwarza wiele trudności. Bezpieczeństwo nawigacji w przypadku dużych jednostek musi być powiązane z infrastrukturą portową, jednak bardzo często porty pracują w oparciu o stare normy i zalecenia, w związku z czym starają się zachować wysoki współczynnik bezpieczeństwa pod względem głębokości i szerokości dróg wodnych oraz warunków hydrometeorologicznych. Stare standardy nie uwzględniają też nowoczesnych urządzeń, takich jak systemy RTK, służących dokładności nawigacyjnej, które są wprowadzone w wielu portach i zwiększają możliwości i bezpieczeństwo. Artykuł stanowi teoretyczne ujęcie żeglugi nowych kontenerowców w obszarze basenów portowych, omawia bezpieczeństwo i możliwości nawigacyjne statków o dużych gabarytach i dobrej sterowności.
Źródło:
Zeszyty Naukowe Akademii Morskiej w Szczecinie; 2010, 20 (92); 102-106
1733-8670
2392-0378
Pojawia się w:
Zeszyty Naukowe Akademii Morskiej w Szczecinie
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Automatic driving comfort analysis and intelligent identification of uncomfortable manoeuvres based on vehicle-following scenario
Autorzy:
Feng, Jiacheng
Powiązania:
https://bibliotekanauki.pl/articles/2086975.pdf
Data publikacji:
2022
Wydawca:
Polskie Towarzystwo Mechaniki Teoretycznej i Stosowanej
Tematy:
automatic driving
driving comfort
evaluation algorithm
wavelet filtering
neural network
Opis:
Driving comfort and performance is of vital importance to evaluate the control quality of an automatic driving system. The control quality and calibration of the automatic driving system not only affects comfort but also psychological load and tension. Therefore, this paper proposed an analysis method of driving comfort combined with subjective and objec- tive factors, including multidimensional analysis based on the velocity domain, acceleration energy and power analysis, perceived risk and deviation analysis. Moreover, the feature of typical uncomfortable manoeuvres is analysed and generates an intelligent identification al- gorithm. It has been found that the uncomfortable identification performance is excellent (the accuracy reached 99%).
Źródło:
Journal of Theoretical and Applied Mechanics; 2022, 60, 2; 303--316
1429-2955
Pojawia się w:
Journal of Theoretical and Applied Mechanics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The analysis of energy recovered by an electric vehicle during selected braking manoeuvres
Autorzy:
Szumska, Emilia M.
Adriana, Skuza
Jurecki, Rafał
Powiązania:
https://bibliotekanauki.pl/articles/2200809.pdf
Data publikacji:
2023
Wydawca:
Sieć Badawcza Łukasiewicz. Przemysłowy Instytut Motoryzacji
Tematy:
regenerative braking
regenerative energy
electric vehicle
vehicle testing
Opis:
Electrical vehicles have the ability to partially recover some kinetic energy during braking. Kinetic energy is transformed into electric energy, which is fed to the battery by the control system and stored there for further use. The aim of this paper was to analyse the levels of energy recovered by an electric vehicle during braking at various speeds and with different braking intensities. The first phase of testing consisted of vehicle braking tests in real-life conditions. The registered speed profiles were then used as input data for the simulation software. The authors have also analysed the effect of the state of charge of the battery and of the vehicle’s load on the amount of energy recovered during braking. The performed simulation tests demonstrated that the level of recovered energy is significantly affected by the initial braking speed and by the force of pressure applied to the brake pedal. The amount of recovered energy is less affected by the state of charge (SOC) of the battery and by the vehicle’s load. Energy regeneration during braking is currently an important research topic. The efficiency of an electric vehicle depends on the range, which can be extended thanks to the additional energy recovered during braking maneuvers. The presented preliminary simulation results are intended to assess the level of energy recovery in electric vehicles. The authors are aware that a full, comprehensive analysis requires additional research using electric vehicles that will verify the results presented in the paper.
Źródło:
Archiwum Motoryzacji; 2023, 99, 1; 18--29
1234-754X
2084-476X
Pojawia się w:
Archiwum Motoryzacji
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
An analysis of collision avoidance manoeuvres in emergency traffic situations
Autorzy:
Jurecki, R. S.
Powiązania:
https://bibliotekanauki.pl/articles/1363764.pdf
Data publikacji:
2016
Wydawca:
Sieć Badawcza Łukasiewicz. Przemysłowy Instytut Motoryzacji
Tematy:
driver testing
driver performance
avoidance manoeuvre
response intensity
badanie kierowcy
wydajność kierowcy
manewr ominięcia
intensywność reakcji
Opis:
This paper provides an overview of the research into the driver behaviour in simulated near collision situations. The aim of such investigations is to determine various parameters characterising the driver performance, e.g. driver response time. The driver response time is a very important parameter used, for example, to analyse road accidents. The results presented in this paper come from a study performed for two different emergency traffic situations using some predefined procedures (scenarios). The tests included situations in which a person driving a subject vehicle on a test track was to respond to obstacle mock-ups on a conflicting path (intrusion of a pedestrian from the left or from the right and intrusion of a vehicle from the right). The test data was used to determine the parameters describing the driver behaviour, i.e. the braking response time (braking manoeuvre), the steering response time (steering manoeuvre) and the intensity of the two manoeuvres. This paper compares the values of the driver response time for two scenarios, each with two variants. The average values of the braking response time and the steering response time were determined on a closed track in relation to the Time-To-Collision (TTC) in the range 0,6÷3s, characterising a near collision situation. Another parameter describing the driver behaviour discussed in this paper is the intensity of an avoidance manoeuvre. In the case of braking, the relative brake pedal displacement was analysed, while in the steering manoeuvre, the steering angle was taken into account. The average values of the braking displacement and the steering angle were presented in the function of the TTC. This paper looks at the relationship between the intensity of the driver response (braking, steering), the driver response time and the TTC.
Źródło:
Archiwum Motoryzacji; 2016, 72, 2; 73-93
1234-754X
2084-476X
Pojawia się w:
Archiwum Motoryzacji
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Simulation-Augmented Methods for Safe and Efficient Manoeuvres in Harbour Areas
Autorzy:
Benedict, K.
Kirchhoff, M.
Gluch, M.
Fischer, S.
Schaub, M.
Baldauf, M.
Powiązania:
https://bibliotekanauki.pl/articles/116369.pdf
Data publikacji:
2016
Wydawca:
Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
Tematy:
manoeuvres in harbour areas
harbour areas
Simulation-Augmented Manoeuvring Design and Monitoring (SAMMON)
Fast-Time Manoeuvring Simulation Technology (FTS)
Co-operative Ship Operation in Integrated Maritime Traffic Systems (COSINUS)
Maritime Unmanned Navigation through Intelligence in Networks (MUNIN)
Innovative Ship Simulation and Maritime Systems (ISSIMS) Navigational Methods Development
Opis:
Safety of navigation is especially challenging and critical when a ship approaches and manoeuvres in harbour areas. Improving the safety especially in the first and last phase of a voyage is crucial and requires measures addressing both the human and technical-technological elements including support systems that shall provide human operators with information relevant for decision making. The present situation is characterized by the introduction of numerous sophisticated technical and support systems often integrated with several components becoming increasingly complex. On the users end, changes are not that obvious and not that rapid as for technology. However, new approaches are under development or already in use. They are characterized by applying and adapting solutions from other transport modes. In this way, tasks and procedures on ships, that are highly safety-relevant and containing high portions of manoeuvring activities have been changed to high back-up procedures as in air planes. For port manoeuvres e.g. the system of pilot/co-pilot was introduced on ferries in a sense that one officer is operating and the other is monitoring and checking the safe performance. In cruise shipping, new structures replacing the traditional rank-based with a flexible system based on job functions. This system creates a kind of a safety net around the person conning the vessel. Each operation is cross checked before execution by one or two other persons. The first obvious consequence is higher costs due to doubling personnel. On the other hand there is also a need for a technology appropriately supporting the checking officer by enabling her or him to monitor what the conning officer is doing. “Fast-Time Manoeuvring Simulation Technology” (FTS) developed at the Institute for Innovative Ship Simulation and Maritime Systems (ISSIMS) has huge potential to fulfil this task. FTS calculates within one second of computing time up to 1000 seconds of real manoeuvring time by a very complex ship-dynamic simulation model for rudder, engine and thruster manoeuvres. It enables prompt prediction of all manoeuvres carried out by the conning officer for the observing officer, too. Predictions of path and motion status allow all officers to see whether the manoeuvring actions have at least the correct tendency or indicating the need for corrections. This new type of support is called Simulation-Augmented Manoeuvring Design and Monitoring (SAMMON) – it allows not only overlooking the next manoeuvring segment ahead but also for the following or even for series of manoeuvring segments. This technology has been used within two research projects: COSINUS (Co-operative Ship Operation in Integrated Maritime Traffic Systems) set out for implementing FTS into integrated ship bridges and to also communicate the manoeuvre plans and display it to VTS centres. Within the European project MUNIN (Maritime Unmanned Navigation through Intelligence in Networks) this technology has been used to investigate if it is possible to steer autonomous ships, in case it would be necessary.
Źródło:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2016, 10, 2; 193-201
2083-6473
2083-6481
Pojawia się w:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Pivot point in ship manoeuvring
Pojęcie chwilowego środka obrotu w manewrowaniu statkiem
Autorzy:
Artyszuk, J.
Powiązania:
https://bibliotekanauki.pl/articles/359165.pdf
Data publikacji:
2010
Wydawca:
Akademia Morska w Szczecinie. Wydawnictwo AMSz
Tematy:
chwilowy środek obrotu
położenie chwilowego środka obrotu
manewry statku
pivot point
notion of pivot point
ship's manoeuvres
Opis:
This paper is aimed to clarify the notion of instant pivot point (as being well established in rigid body mechanics) and review its application in practical ship manoeuvring. The extension of the Vasco Costa original results to arbitrary initial ship manoeuvring motions is performed and a transient phase of the pivot point change is studied, especially with regard to ship crash stopping and turning (including inter alia a bow thruster application).
W artkule podjęto problem położenia chwilowego środka obrotu w różnych etapach manewrowania statkiem. Wskazano na jego praktyczne znaczenie, przedstawiono ścisłe podstawy teoretyczne i wyniki symulacji dla wybranych manewrów. Wzdłużne położenie środka obrotu jest często niepoprawnie lub nie w pełni rozumiane i tym samym niewłaściwie wykorzystywane wśród nawigatorów.
Źródło:
Zeszyty Naukowe Akademii Morskiej w Szczecinie; 2010, 20 (92); 13-24
1733-8670
2392-0378
Pojawia się w:
Zeszyty Naukowe Akademii Morskiej w Szczecinie
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Evaluation of the correctness of performance of typical vehicle drive manoeuvres vs. steering effort
Autorzy:
Nogowczyk, P.
Powiązania:
https://bibliotekanauki.pl/articles/244175.pdf
Data publikacji:
2009
Wydawca:
Instytut Techniczny Wojsk Lotniczych
Tematy:
objective function
correct execution of a manoeuvre
steering effort
steering control quality evaluation
simulation of a manoeuvre
Opis:
The paper concerns the modelling of lateral dynamics of vehicle movement. Two concepts related to vehicle steering were presented and compared with each other in this paper. One of them was related to the idea of a curvilinear motion assistance system, which might be used for automatic vehicle driving or for the correction of driver's actions. It aimed at the optimization of the steering wheel input in terms of the correctness of performance of typical manoeuvres. The other one was related to the realization of steering assistance. It concerned the evaluation of steering control guality by determination of the steering effort value. For the analysis of the correctness of typical manoeuvres performance, a double lane-change manoeuvre was chosen. To evaluate the correct performance of the manoeuvre an objective function was adopted and presented in the paper. A computer simulation oftwo examples of the typical double lane-change manoeuvre was carried out. The first example concerned an avoidance of an obstacle having suddenly sprung up and the second one concerned an avoidance of an obstacle without the element of surprise. Some examples of computer simulation results were presented and discussed in the paper.
Źródło:
Journal of KONES; 2009, 16, 1; 367-377
1231-4005
2354-0133
Pojawia się w:
Journal of KONES
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Approach parameters in marine navigation - graphical interpretations
Autorzy:
Lenart, A. S.
Powiązania:
https://bibliotekanauki.pl/articles/117260.pdf
Data publikacji:
2017
Wydawca:
Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
Tematy:
anti-collision
graphical interpretations
approach parameters
marine navigation
closest point of approach (CPA)
tome to the closest point of approach (TCPA)
collision avoidance
tactical manoeuvres
Opis:
In this paper approach parameters widely used collision avoidance systems such as the distance at closest point of approach and time to the closest point of approach and less known and used as the distance on course, the distance abeam and any distance and the times intervals to their occurrences are derived, analyzed and graphically interpreted in the combined coordinate system for position and motion. They can be used in collision avoidance systems and for reversed purposes - manoeuvring to required approach parameters, intentional approaches and naval tactical manoeuvres.
Źródło:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2017, 11, 3; 521-529
2083-6473
2083-6481
Pojawia się w:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Steady State Ship Attitude during Manoeuvres in a Bank Vicinity
Równowaga statku podczas oddziaływania efektu brzegowego
Autorzy:
Artyszuk, J.
Powiązania:
https://bibliotekanauki.pl/articles/360183.pdf
Data publikacji:
2004
Wydawca:
Akademia Morska w Szczecinie. Wydawnictwo AMSz
Tematy:
manewrowanie
model matematyczny
efekt brzegowy
kanał
EXPLO-SHIP 2004
manoeuvring
mathematical model
restricted water
bank effect
canal
Opis:
The existing regression models on the bank (wall) effect are compared to one another both dynamically (force level) and kinematically (counteracting helm and hull drift attitude during a steady-state passage along a bank). A small chemical tanker of known hull and rudder hydrodynamics is used as an example of computations. A lot of essential qualitative and quantitative discrepancies have been found, which might claim the regression models of little use in an adequate bank effect simulation. Further research is required in this field.
Przeprowadzono symulację efektu brzegowego w kanale dla małego chemikaliowca, wykorzystując dostępne modele regresyjne tego zjawiska. Główny nacisk położono na wielkość dryfu i wychylenie steru potrzebne do zrównoważenia efektu brzegowego podczas ustalonego ruchu jednostki poza osią kanału. Stwierdzono zasadnicze różnice między poszczególnymi modelami, co uniemożliwia uzyskanie prawdziwego ilościowego obrazu zjawiska. Konieczne są dalsze prace nad modelowaniem efektu brzegowego.
Źródło:
Zeszyty Naukowe Akademii Morskiej w Szczecinie; 2004, 2 (74); 45-57
1733-8670
2392-0378
Pojawia się w:
Zeszyty Naukowe Akademii Morskiej w Szczecinie
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Concept of the automatization of dangerous driving manoeuvres
Autorzy:
Gidlewski, M.
Jemioł, L.
Żardecki, D.
Powiązania:
https://bibliotekanauki.pl/articles/247675.pdf
Data publikacji:
2018
Wydawca:
Instytut Techniczny Wojsk Lotniczych
Tematy:
motor vehicle
active safety
lateral dynamics
avoidance automatization
obstacle voidance
model tests
simulation tests
pojazd silnikowy
bezpieczeństwo aktywne
testy modelowe
testy symulacyjne
Opis:
Automatic control is one of the main characteristic features of the present-day “electrified” motor vehicle. The avoidance of a suddenly appearing obstacle, including a rapid lane-change manoeuvre, is counted among the driving manoeuvres that are most dangerous and difficult to be automatized. Note that this seems to be a fundamental problem for autonomous cars. The authors have shown general vehicle automatization concepts derived from the control systems theory. Against this background, they have presented results of their own analytical studies and simulation research related to the system of automatic controlling of a rapid lane-change manoeuvre. A controller algorithm developed within this work, where a simplified reference model of the lateral dynamics of a motor vehicle was used (transmittance-type model based on well known “bicycle model” but transformed and linearized), was successfully examined in exhaustive simulation tests. The virtual object used for the simulation tests was an extensive simulation model (3D, nonlinear, MBS type) of a two-axle motor truck of medium load capacity, driven with quite a high speed. This detail model had been experimentally verified. In the article, only a fragment of a large research project has been described.
Źródło:
Journal of KONES; 2018, 25, 1; 111-122
1231-4005
2354-0133
Pojawia się w:
Journal of KONES
Dostawca treści:
Biblioteka Nauki
Artykuł
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