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Wyświetlanie 1-10 z 26
Tytuł:
Vehicular flow simulators based on complex queuing systems
Autorzy:
Pasini, L.
Feliziani, S.
Powiązania:
https://bibliotekanauki.pl/articles/1955296.pdf
Data publikacji:
2013
Wydawca:
Politechnika Gdańska
Tematy:
traffic systems
queueing network
modeling and simulation
Opis:
The crux of this paper is to demonstrate how it is possible to model systems of vehicular trafic by means of complex queuing network models. The objects comprising the library that we define in this work all follow the approach whereby they are composed of one or more queuing networks of service systems that are traversed by customers (vehicles).
Źródło:
TASK Quarterly. Scientific Bulletin of Academic Computer Centre in Gdansk; 2013, 17, 3-4; 155--180
1428-6394
Pojawia się w:
TASK Quarterly. Scientific Bulletin of Academic Computer Centre in Gdansk
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Fuzzy Alliance and Coalitions that Can Be Formed by Alliance Agents
Autorzy:
Mashkov, Viktor
Smolarz, Andrzej
Lytvynenko, Volodymyr
Powiązania:
https://bibliotekanauki.pl/articles/27311942.pdf
Data publikacji:
2023
Wydawca:
Polska Akademia Nauk. Czasopisma i Monografie PAN
Tematy:
alliance
coalition
multi-agent systems
modeling and simulation
Opis:
The paper deals with alliances and coalitions that can be formed by agents or entities. It is assumed that alliance agents cooperate and form coalitions for performing the tasks or missions. It is considered that alliance agents are unselfish. That is, they are more interested in achieving the common goal(s) than in getting personal benefits. In the paper, the concept of fuzzy alliance was introduced. A fuzzy alliance is considered as generalization of traditional alliance allowing agents to decide on the capabilities that their agents can and wanted deliver to coalition. Coalitions that can be formed by fuzzy alliance agents were considered. The definition of the “best” coalition was explained. The method of how to find the “best” coalition among all possible coalitions was suggested and verified by computer simulation.
Źródło:
International Journal of Electronics and Telecommunications; 2023, 69, 4; 713--718
2300-1933
Pojawia się w:
International Journal of Electronics and Telecommunications
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The modelling and simulation method in computer aided cooperation
Autorzy:
Matuszek, J.
Moczała, A.
Powiązania:
https://bibliotekanauki.pl/articles/971014.pdf
Data publikacji:
2010
Wydawca:
Polska Akademia Nauk. Instytut Badań Systemowych PAN
Tematy:
production
co-operation
modeling and simulation
expert systems
Opis:
This paper presents a possibility of applying a modelling and simulation technique in designing a logistic chain in production enterprises. A new approach, based on simulation technique, together with utility function for partnership selection in cooperative production is the main element of the study. The work is oriented at practitioners, who use methods and ways of data exchange in cooperation and create new computer systems aiding in production cooperation. The capacity of simulation technique is illustrated by practical examples.
Źródło:
Control and Cybernetics; 2010, 39, 1; 117-131
0324-8569
Pojawia się w:
Control and Cybernetics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Computer support of ergonomic analysis of working conditions at workstations
Autorzy:
Kolny, Damian
Kurczyk, Dawid
Matuszek, Józef
Powiązania:
https://bibliotekanauki.pl/articles/118211.pdf
Data publikacji:
2019
Wydawca:
Polskie Towarzystwo Promocji Wiedzy
Tematy:
work ergonomics
modeling and simulation
ergonomia pracy
modelowanie i symulacja
Opis:
The article shows issues of using computer-aided technologies for ergonomic analysis at worksplaces using a dedicated tool in the Delmia environment. The scope of the ergonomic evaluation has been limited to the analysis of RULA and NIOSH, the data needed for it was gathered on the basis of observation, interview and task analysis. The results of the research showed the strenous nature of the work, therefore improvements within undertaken workplace area were proposed and re-analyzed. The obtained results proved reduction of strenousness, which was the basis for the practical implementation of the proposed changes.
Źródło:
Applied Computer Science; 2019, 15, 1; 49-61
1895-3735
Pojawia się w:
Applied Computer Science
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Modeling, simulation and control of high speed nonlinear hydraulic servo system
Autorzy:
Maneetham, D.
Afzulpurkar, N.
Powiązania:
https://bibliotekanauki.pl/articles/384503.pdf
Data publikacji:
2010
Wydawca:
Sieć Badawcza Łukasiewicz - Przemysłowy Instytut Automatyki i Pomiarów
Tematy:
modeling and simulation
hydraulic servo system
high speed hydraulic machine control
Opis:
The purpose of this paper is to present for modeling and simulation a hydraulic servo system (HSS). This work describes the design and implementation of a control system for the operation of a hydraulic mini press machine. First, the system develops mathematical models for obtaining the system responses. While, the closed loop system is based on linearized model of feedback regulator of PD controller for high-speed control. The simulation experiment is performed using MATLAB and SIMULINK. An experimental set-up is constructed, which consists of microcontroller PIC 18F458 as controller. The simulation results, showing the effectiveness of the proposed approach.
Źródło:
Journal of Automation Mobile Robotics and Intelligent Systems; 2010, 4, 1; 94-103
1897-8649
2080-2145
Pojawia się w:
Journal of Automation Mobile Robotics and Intelligent Systems
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Modelling and characterization of laser welded incoloy 800 HT joints
Autorzy:
Arun Kumar, S.
Paulraj, S.
Powiązania:
https://bibliotekanauki.pl/articles/102190.pdf
Data publikacji:
2016
Wydawca:
Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Tematy:
incoloy 800 HT
laser welding
modeling and simulation
mechanical and metallurgical characteristics
Opis:
This study aims at finding the effect of laser welding speed on incoloy 800 HT. This alloy is one of the potential materials for Generation IV nuclear plants. Laser welding has several advantages over arc welding such as low fusion zone, low heat input and concentrated heat intensity. Three different welding speeds were chosen and CO2 laser welding was performed. 2D modeling and simulation were done using ANSYS 15 to find out the temperature distribution at different welding speeds and it was found that an increase in the welding speed decreased the temperature. Mechanical properties such as tensile strength, toughness and hardness were evaluated. The effect of welding speed on metallurgical characteristics was studied using optical microscopy (OM), Scanning Electron Microscopy (SEM) with EDS, X-Ray Diffraction (XRD) technique and fractographic analysis. From the results it was found that high welding speed (1400 mm/min) decreased the joint strength. The M23C6 and Ni3Ti carbides were formed in a discrete chain and in a globular form along the grain boundaries of the weld region which increased the strength of the grain boundaries. Fractographic evaluations of the tested specimens for welding speed (1000 and 1200) mm/min showed deep and wide dimples indicating ductile failures.
Źródło:
Advances in Science and Technology. Research Journal; 2016, 10, 30; 115-126
2299-8624
Pojawia się w:
Advances in Science and Technology. Research Journal
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Modelowanie maszyn synchronicznych w ujęciu grafów wiązań
Modelling of synchronous machines using bond graphs
Autorzy:
Ronkowski, M.
Powiązania:
https://bibliotekanauki.pl/articles/320282.pdf
Data publikacji:
2006
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Tematy:
maszyny synchroniczne
modelowanie
symulacja
grafy wiązań
synchronous machines
modeling and simulation
bond graphs
Opis:
Celem artykułu jest jednolite i zwięzłe przedstawienie modelowania maszyn synchronicznych metodą grafów wiązań (GW) na potrzeby symulacji szeroko pojętych systemów energetycznych (SE) i systemów napędowych (SN), w szczególności systemów o naturze hybrydowej. Omówiono ogólne założenia modelowania maszyny synchronicznej (MS) w ujęciu grafów wiązań, bazującego na koncepcji dwóch sprzężeń podstawowych - wzorcowego sprzężenia transformatorowego i wzorcowego sprzężenia elektromechanicznego. Na podstawie tak sformułowanego założenia przedstawiono model MS o wzbudzeniu elektromagnetycznym. Model opracowano z zastosowaniem edytora symulatora 20-sim.
The paper presents the bond graphs approach to modelling a synchronous machine (MS) for simulations the power conversion systems - systems of hybrid physical nature. In the first part the fundamentals of bond graph modelling approach are presented (Fig. 1-2). In the second part the model of SM in terms of bond graphs is described (Fig. 3). The model is based on the models of ideal couplings [8]: transformer and electromechanical. The model is elaborated using the editor of 20-sim simulator [14].
Źródło:
Elektrotechnika i Elektronika; 2006, 25, 2; 192-196
1640-7202
Pojawia się w:
Elektrotechnika i Elektronika
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Remote sensing applications - new vistas for measurement and control
Autorzy:
Zaremba, M.
Powiązania:
https://bibliotekanauki.pl/articles/384259.pdf
Data publikacji:
2008
Wydawca:
Sieć Badawcza Łukasiewicz - Przemysłowy Instytut Automatyki i Pomiarów
Tematy:
remote sensing
satellite imagery
lidar
image processing
data fusion
distributed control
modeling and simulation
Opis:
The field of remote sensing is an area of science and technology that has undergone rapid development in recent years. This paper focuses primarily on how to exploit the capabilities made available by remote sensing and how to put them to use by combining them with a sys-temic approach to design and analysis in various measurement and control applications. The emphasis is placed on high-resolution satellite and Lidar sensors – the most prevalent remote sensing technologies. Following the presentation of some general issues related to low- and high-level processing of remote sensing data, such as data dimensionality reduction, data fusion, and change detection, the paper provides examples of control-related applications of remote sensing technologies. It is argued that successful exploitation of new generations of remote sensing technologies will require extensive development of new algorithms based on a variety of approaches, such as machine vision, statistical learning, and artificial intelligence.
Źródło:
Journal of Automation Mobile Robotics and Intelligent Systems; 2008, 2, 3; 3-12
1897-8649
2080-2145
Pojawia się w:
Journal of Automation Mobile Robotics and Intelligent Systems
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Historical-pedagogical analysis of model and simulation development as a part of tactical training of military professionals
Autorzy:
KOS, Mykola
Powiązania:
https://bibliotekanauki.pl/articles/455537.pdf
Data publikacji:
2013
Wydawca:
Uniwersytet Rzeszowski
Tematy:
simulation and modeling
imitation
modeling
simulation
model
Opis:
We have provided a short description of development of models and simulation of tactical and strategic actions in training of military professional. We believe that better and more rigorous research of development and new trends of models and simulation is needed in order to gain the necessary knowledge on how to use their experience in development of perspective systems of models and simulation of combat actions for Ukrainian Armed Forces. This is especially true for the training of future officers in Military Higher Education Institutions. A further line of research may be the analysis of development of national models and simulation of various actions in military sphere, particularly in system of military education.
Źródło:
Edukacja-Technika-Informatyka; 2013, 4, 1; 410-412
2080-9069
Pojawia się w:
Edukacja-Technika-Informatyka
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Parametric studies of failure mechanisms in thermal barrier coatings during thermal cycling using FEM
Autorzy:
Srivathsa, B.
Das, D. K.
Powiązania:
https://bibliotekanauki.pl/articles/266255.pdf
Data publikacji:
2015
Wydawca:
Uniwersytet Zielonogórski. Oficyna Wydawnicza
Tematy:
thermal barrier coatings
residual stress
failure mechanisms
modeling and simulation
naprężenia szczątkowe
mechanizm uszkodzenia
modelowanie
symulacja
Opis:
Thermal barrier coatings (TBCs) are widely used on different hot components of gas turbine engines such as blades and vanes. Although, several mechanisms for the failure of the TBCs have been suggested, it is largely accepted that the durability of these coatings is primarily determined by the residual stresses that are developed during the thermal cycling. In the present study, the residual stress build-up in an electron beam physical vapour deposition (EB-PVD) based TBCs on a coupon during thermal cycling has been studied by varying three parameters such as the cooling rate, TBC thickness and substrate thickness. A two-dimensional thermomechanical generalized plane strain finite element simulations have been performed for thousand cycles. It was observed that these variations change the stress profile significantly and the stress severity factor increases non-linearly. Overall, the predictions of the model agree with reported experimental results and help in predicting the failure mechanisms.
Źródło:
International Journal of Applied Mechanics and Engineering; 2015, 20, 4; 899-915
1734-4492
2353-9003
Pojawia się w:
International Journal of Applied Mechanics and Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-10 z 26

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