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Wyszukujesz frazę "simulation tools" wg kryterium: Temat


Tytuł:
Optimisation of Logistics Processes Using Simulation Tools
Autorzy:
Kuczyńska-Chałada, Marzena
Poloczek, Roksana
Tematy:
production logistics
simulation tools
Flexsim
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Wydawca:
STE GROUP
Powiązania:
https://bibliotekanauki.pl/articles/2064903.pdf  Link otwiera się w nowym oknie
Opis:
Optimization of production logistics processes through the use of simulation tools brings a lot of benefits to a production company, and thus significantly reduces production costs. Increasing competition resulting from the use of production automation to increase productivity has increased the complexity of production systems that can only be analysed by simulation. Production logistics performs management functions such as planning, motivating, organising and controlling. It does not deal with technological processes, but the organisation of physical delivery and displacement of components and information in the system. An important feature of production logistics is combining supply logistics with distribution logistics. If the production logistics is properly organised, it provides access to all materials and components of a given product during the implementation of a specific order. Simulation tools ensure continuity and rhythm of production after it is started, as well as convenient conditions for using modern internal transport. The article presents the Flexsim simulation tool, which was used to improve production logistics in the studied enterprise. The programme also contributed as an opportunity to improve and shorten production cycles, maintain optimal inventories, select packaging and logistics units, as well as the ability to use automatic identification of raw materials, materials or semi-finished products.
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The influence of order picking zone’s configuration on the time of the order picking process
Autorzy:
Jakubiak, Michał
Tematy:
logistics
order-picking
simulation tools
warehouse management
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Wydawca:
Wydawnictwo Uniwersytetu Ekonomicznego we Wrocławiu
Powiązania:
https://bibliotekanauki.pl/articles/424933.pdf  Link otwiera się w nowym oknie
Opis:
The pressure connected with cost cutting parallel to an increase in consumer service quality as well as speeding up the flow of goods are the result of a worldwide economy trend connected with big competition in the market. That is why in modern economy even small movements of goods at short distances are becoming more and more important. The order picking problems in a warehouse are an important aspect in improving the productivity of modern logistic hubs. According to various estimates, the costs associated with order picking in a warehouse are from 55 to 65% of the total material handling costs. The author, using simulation tools, examines the influence of order picking zone’s configuration on the time of the order picking process. By means of the implemented simulation methods, it is possible to match the appropriate order picking process to the needs of a given enterprise.
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Evaluation of efficiency and reliability of airport processes using simulation tools
Autorzy:
Gołda, Paweł
Zawisza, Tomasz
Izdebski, Mariusz
Tematy:
efficiency
airport processes
simulation tools
safety of airport operations
genetic algorithm
reliability airport processes
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Wydawca:
Polska Akademia Nauk. Polskie Naukowo-Techniczne Towarzystwo Eksploatacyjne PAN
Powiązania:
https://bibliotekanauki.pl/articles/2038035.pdf  Link otwiera się w nowym oknie
Opis:
The purpose of this paper is to evaluate the efficiency of airport processes using simulation tools. A critical review of selected scientific studies relating to the performance of airport processes with respect to reliability, particularly within the apron, has been undertaken. The developed decision-making model evaluates the efficiency of airport processes in terms of minimizing penalties associated with aircraft landing before or after the scheduled landing time. The model takes into account, among other things, aircraft take-offs and landings and separation times between successive aircraft. In order to be able to verify the correctness of the decision-making model, a simulation tool was developed to support decision making in the implementation of airport operations based on a genetic algorithm. A novel development of the structure of a genetic algorithm as well as crossover and mutation operators adapted to the determination of aircraft movement routes on the apron is presented. The developed simulation tool was verified on real input data.
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The EMITRANSYS model and the possibilities of its application for the analysis of the development of sustainable transport systems
Autorzy:
Jacyna, Marianna
Żak, Jolanta
Gołębiowski, Piotr
Tematy:
development of transport system
simulation tools
EMITRANSYS
mathematical model
rozwój systemu transportowego
narzędzia symulacyjne
model matematyczny
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Wydawca:
Polskie Towarzystwo Naukowe Silników Spalinowych
Powiązania:
https://bibliotekanauki.pl/articles/132999.pdf  Link otwiera się w nowym oknie
Opis:
The transport system has a direct impact on the economic and socio-economic situation of each country. Planning its development is an important element of policy. Bearing in mind the importance and complexity of this issue, it should be considered using both quantitative methods and mathematical models, as well as advanced simulation tools for modelling transport. The article presents a proposal for an approach to simulation tests of the different transport system in the aspect of the emission of harmful exhaust gas compounds from road transport. The tool for analysing and assessing the functioning of existing or designed systems is a model in which the properties of the real system, which are important from the point of view of the research objective, should be mapped. The Model of Proecological Transport System (MEST) was presented formally as an ordered four. Also elements of optimization taks shaping of proecological transport system in form of datas, decision variables, conditions and goal function were presented. An example of tests on simulation model was shown.
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Development of a simulation tool for the dynamic analysis of railway vehicle - track interaction
Rozwój symulacyjnego narzędzia do analizy dynamiki interakcji pojazd szynowy - tor
Autorzy:
Shaltout, R.
Ulianov, C.
Baeza, L.
Tematy:
multibody
dynamic simulation
vehicle-track interaction
railway modelling
simulation tools
rail vehicle
symulacja dynamiczna
interakcja pojazd-tor
modelowanie kolejowe
narzędzia symulacyjne
pojazd szynowy
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Wydawca:
Politechnika Śląska. Wydawnictwo Politechniki Śląskiej
Powiązania:
https://bibliotekanauki.pl/articles/374713.pdf  Link otwiera się w nowym oknie
Opis:
The importance of modelling and simulation in the field of railway systems has greatly increased in the last decades. Various commercial simulation packages have been developed and are used to analyse the dynamic performance of railway systems. However, although sometimes the user needs to analyse various non-standard solutions, the possibility to integrate further modifications into the structure of such software is quite limited. Therefore, in some cases, in particular for specific modelling and analysis tasks, a feasible option is to develop flexible and robust simulation tools capable of using different configurations by modifying the models performing the dynamic analysis. The paper presents the mathematical modelling background and the conceptual design of a new of a new computational tool for the dynamic simulation of railway vehicle systems. The formulations employed in the proposed mathematical model are based on the multibody techniques. The developed model uses a combined frame of references that allows the use of independent coordinates without the possibility to have singularity configurations depending on the rotation sequence. The simulation tool is designed in a flexible form that enables the study of different configurations of the railway vehicles, as well as various track combinations.
W ostatnich dziesięcioleciach znacznie wzrosło znaczenie modelowania i symulacji w dziedzinie systemów kolejowych. Różne rodzaje symulacji komercyjnych pakietów zostały opracowane i są używane do analizy dynamiki wydajności systemów kolejowych. Jednak czasami użytkownik musi analizować różne niestandardowe rozwiązania, a możliwość integracji dalszych zmian w strukturze takiego oprogramowania jest dość ograniczona. W związku z tym w niektórych przypadkach, w szczególności dla konkretnych zadań modelowych, realną opcją jest opracowanie narzędzi symulacyjnych, pozwalających na elastyczne i niezawodne użycie różnych konfiguracji modeli przy wykonywaniu analizy dynamicznej. Artykuł prezentuje nowe narzędzie modelowania i obliczania dynamicznych symulacji układów pojazdu szynowego. Formuły stosowane w proponowanym modelu matematycznym są oparte na technikach wieloobiektowych.
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Elements of the model positioning of aircraft on the apron
Autorzy:
Gołda, Paweł
Kowalski, Miroslaw
Wasser, Cezary
Dygnatowski, Paweł
Szporka, Aleksander
Tematy:
airport
aircraft traffic management
traffic organization
aircraft operation
airport processes
simulation tools
lotnisko
zarządzanie ruchem lotniczym
organizacja ruchu
operacje lotnicze
symulacja
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Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Powiązania:
https://bibliotekanauki.pl/articles/224227.pdf  Link otwiera się w nowym oknie
Opis:
The design of airports and the organization of their work requires the recognition of the basic components of the air transport process, consisting of an "aerial" part, including the landing phase and the landing operation itself, as well as take-off, the "ground" part, including the task of taxiing aircraft on apron, ground handling tasks, "terminal" part, including passenger handling tasks. These elements form a cause-and-effect sequence, or a series-parallel structure that determines the quality of services provided by the airport, their efficiency, reliability and price. The article presents the issues of decision support for the operation and maintenance of airport infrastructure and traffic management on the ramp and within the airport, i.e. the operation of allocating aircraft to the gates of "gates" using simulation tools. Aircraft taxiing operations on the tarmac integrate the flight phase (along with its components and its problems, such as arriving and departing sequencing) with the ground handling phase of aircraft and passengers at terminals. The model presented in the article is a single element of a holistic approach to the operation of an airport. The overall model consists of the development of decision models for the organization of aircraft traffic on the apron, algorithms for their solution and the possibility of practical application as a simulation tool for analyzing and assessing aircraft traffic processes in the take-off, taxiing and landing phase. To describe the model, a formal mapping of the structure of the necessary airport elements was proposed. A formal record of boundary conditions and criteria relevant to aircraft allocation processes is presented due to the minimization of travel time of passengers transferring between two aircraft assigned to two different gates. Test results can be used in practice, among others by airspace controllers and airport designers for: analyzing and assessing the possibilities of increasing airport capacity, analyzing and assessing the determination of taxiway lengths, maintaining high safety reserves, etc.
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Common driving notification protocol based on classified driving behavior for cooperation intelligent autonomous vehicle using vehicular ad-hoc network technology
Autorzy:
Lin,, C.-H.
Dong, F. -Y.
Hirota, K.
Tematy:
common driving notification protocol
CDNP
intelligent autonomous vehicle
identification
simulation tools
NS-3
SUMO
data packet transmission
vehicle mobility
inteligentny pojazd autonomiczny
identyfikacja
narzędzia symulacyjne
transmisja danych pakietowych
mobilność pojazdu
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Wydawca:
Społeczna Akademia Nauk w Łodzi. Polskie Towarzystwo Sieci Neuronowych
Powiązania:
https://bibliotekanauki.pl/articles/91784.pdf  Link otwiera się w nowym oknie
Opis:
A protocol, called common driving notification protocol (CDNP), is proposed based on the classified driving behavior for intelligent autonomous vehicles, and it defines a standard with common messages and format for vehicles. The common standard format and definitions of CDNP packet make the autonomous vehicles have a common language to exchange more detail driving decision information of various driving situations, decrease the identification time for one vehicle to identify the driving decisions of other vehicles before or after those driving decisions are performed. The simulation tools, including NS- 3 and SUMO, are used to simulate the wireless data packet transmission and the vehicle mobility; the experiment results present that the proposed protocol, CDNP, can increase the reaction preparing time with maximum value 250 seconds, decrease the identification time and the average travel time. Prospectively, it is decided to implement the CDNP as a protocol stack in the Linux kernel to provide the basic protocol capability for real world transmission testing.
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Środowisko Webench Design jako narzędzie edukacyjne
Webench Design Environment as an Educational Tool
Autorzy:
LIPIŃSKI, SEWERYN
MACIĄG, ANNA
Tematy:
Webench Design
symulacja układów elektronicznych narzędzia edukacyjne
dydaktyka elektroniki
simulation of electronic circuits educational tools
didactics of electronics
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Wydawca:
Uniwersytet Rzeszowski
Powiązania:
https://bibliotekanauki.pl/articles/455718.pdf  Link otwiera się w nowym oknie
Opis:
Artykuł podejmuje temat zastosowania środowiska Webench Design w procesie nauczania elektroniki, szczególnie analogowej. Obecnie przekazywanie wiedzy z tego zakresu z wielu powodów jest dużym wyzwaniem dydaktycznym. W tym kontekście wykorzystanie darmowego i dostępnego online oprogramowania projektowo-symulacyjnego pozwala na uniknięcie części problemów pojawiających się w tym procesie i efektywne przekazanie wiedzy. W niniejszym opracowaniu środowisko Webench Design najpierw zostało opisane w sposób ogólny, a następnie na konkretnym przykładzie, jakim był aktywny filtr górnoprzepustowy, zaprezentowano część jego możliwości.
The article deals with the application of the Webench Design environment in the electronics teaching, especially in analog circuits. Nowadays, transferring knowledge in this field is a big didactic challenge for many reasons. In this context, the use of project-simulation software that is free of charge and onlineavailable, allows avoiding some of the problems that arise in this process and transfer knowledge much more effectively. In the work, the Webench Design environment was first described in a general way, and then on a specific example, which was an active high- -pass filter, some of its capabilities were presented.
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Computer simulation of vibration surveillance of discretely idealised mechanical systems. Part II: Tool-workpiece vibration in a non-stationary model of the cutting process
Autorzy:
Kaliński, K. J.
Tematy:
machine tools
modelling
control
simulation
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Wydawca:
Politechnika Gdańska
Powiązania:
https://bibliotekanauki.pl/articles/1955704.pdf  Link otwiera się w nowym oknie
Opis:
The problems of tool-workpiece vibration surveillance during machining have been researched. The object of investigation has been analysed, and cutting dynamics and calculation model creation described. Various approaches to and computer simulations of non-stationary model vibration surveillance are explained, based upon optimal spindle speed control and step-changing spindle speed control. A procedure is developed for computer prediction of results of the programme-controlled spindle speed surveillance strategy. Performance results are compared with those measured on a VMC FADAL 4020HT milling machine.
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A mechatronic study on a model-based compensation of inertial vibration in a high-speed machine tool
Autorzy:
Parenti, P.
Bianchi, G.
Cau, N.
Albertelli, P.
Monno, M.
Tematy:
machine tools
mechatronic simulation
vibration control
inertial deformation
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Wydawca:
Wrocławska Rada Federacji Stowarzyszeń Naukowo-Technicznych
Powiązania:
https://bibliotekanauki.pl/articles/99723.pdf  Link otwiera się w nowym oknie
Opis:
A significant limitation to machine tool productivity in high-speed operations is due to inertial vibrations. During strong accelerations, inertial forces generate oscillations that are translated into surface geometrical errors on the machined parts. Machine tools users minimize these problems by reducing machine axes quickness, thus affecting productivity. In this paper the effects of inertial deformations on machine tool accuracy have been studied to evaluate the possibility of adopting a software compensation strategy. The proposed model-based solution, based on a reduced model of the machine tool dynamics, has been tested in a mechatronic simulation environment. In order to meet industrial needs, the compensation scheme has been designed to allow its implementation on standard numerical controllers. A detailed feasibility analysis has been carried out studying all aspects that can potentially impede the application of such approach. Simulations and some preliminary experiment tests prove the effectiveness of the developed technique on a five-axis machining center.
Dostawca treści:
Biblioteka Nauki
Artykuł

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