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Materiały i nowoczesne techniki badawcze – Komitet Studiów D1

Szewczyk Marcin

Energetyka

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2023

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nr 3

239--246

PL

W artykule omówiono wybrane referaty spośród 55 prac zaprezentowanych w czasie sesji CIGRE 2022 w ramach Komitetu Studiów D1 Materiały i nowoczesne techniki badawcze. Problematyka referatów skupiona była wokół trzech tematów wiodących: PS1 – Diagnostyka i monitoring urządzeń elektroenergetycznych, PS2 – Materiały do zastosowań elektrotechnicznych oraz PS3 – Narzędzia symulacyjne wspomagające techniki pomiarowe. Komitet Studiów D1 stanowi platformę międzynarodowej wymiany informacji i studiów w zakresie materiałów i technik diagnostycznych urządzeń elektroenergetyki, umożliwiając opracowywanie nowych materiałów i technik, a także opracowywanie nowych zaleceń i wytycznych dotyczących projektowania, eksploatacji i utrzymania tych urządzeń.

EN

Discussed are selected papers from among 55 presented as part of the Study Committee D1 - Materials and Emerging Test Techniques during the CIGRE 2022 Session. The papers were focused on three leading topics: PS1 - Testing, Monitoring and Diagnostics of Power Equipment, PS2 - Materials for Electrotechnical Applications, PS3 - Simulation Tools with Measurement Techniques. The Study Committee D1 is a platform for international exchange of information and studies in the field of materials and diagnostic techniques of power equipment, enabling the development of new materials and techniques as well as elaboration of new recommendations and guidelines for the design, operation, and maintenance of these devices.

2

Evaluation of efficiency and reliability of airport processes using simulation tools

Gołda Paweł, Zawisza Tomasz, Izdebski Mariusz

Eksploatacja i Niezawodność

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2021

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Vol. 23, no. 4

659--669

EN

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.

3

Optimisation of Logistics Processes Using Simulation Tools

Kuczyńska-Chałada Marzena, Poloczek Roksana

Multidisciplinary Aspects of Production Engineering

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2020

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Vol. 3, Iss. 1

184--194

EN

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.

4

The EMITRANSYS model and the possibilities of its application for the analysis of the development of sustainable transport systems

Jacyna Marianna, Żak Jolanta, Gołębiowski Piotr

Combustion Engines

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2019

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R. 58, nr 4

243--248

EN

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.

5

Elements of the model positioning of aircraft on the apron

Gołda Paweł, Kowalski Mirosław, Wasser Cezary, Dygnatowski Paweł, Szporka Aleksander

Archives of Transport

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2019

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Vol. 51, iss. 3

101--108

EN

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.

6

Development of a simulation tool for the dynamic analysis of railway vehicle - track interaction

Shaltout R., Ulianov C., Baeza L.

Transport Problems

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2015

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T. 10, z. spec.

47--58

EN

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.

PL

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.

7

Common driving notification protocol based on classified driving behavior for cooperation intelligent autonomous vehicle using vehicular ad-hoc network technology

Lin, C.-H. C.-H., Dong F. -Y., Hirota K.

Journal of Artificial Intelligence and Soft Computing Research

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2015

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Vol. 5, No. 1

5--21

EN

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.

8

Transit demand forecast and emission estimation for electric bus fleet operation using activity based simulation

Czogalla O.

Logistyka

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2014

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nr 4

2739--2749

EN

The forecast of transit demand is an important premise to analyze potential effects of electric bus fleet deployment in the public transport domain in order to generate realistic and robust data on transport mass between transit stops as an input for a transit vehicle model. In addition, the reduction of climate relevant gases such as carbon dioxide constitutes a major target of local policies of administrations within the European Union. Numerous cities seek for a significant reduction of emissions until 2050 [4]. Traffic and transport account for approximately 30 percent of total emissions. In this respect, exists a considerable potential by deployment of electric bus vehicles to contribute to a substantial reduction of energy consumption and tailpipe emissions in the domain of public transit. The gradual replacement of fossil fuelled vehicle fleet by electrically driven buses requires estimation of effects on emission rates within the transit system and total reduction potentials for a regional deployment. To estimate emission reductions internal emission models of Transportation Analysis and Simulation System (TRANSIMS) [8] have been calibrated and applied to conditions of the modeled urban network and bus vehicle emission rates.

PL

Prognoza popytu na przemieszczenia jest ważną przesłanką przy analizach rozmieszczenia floty autobusowej zasilanej napędem elektrycznym. Celem tych analiz jest generowanie wiarygodnych wielkości przewozów między przystankami, które stanowią dane wejściowe w modelu ruchu. Ponadto, redukcja gazów cieplarnianych, takich jak dwutlenek węgla, stanowi istotny cel polityki Unii Europejskiej. Wiele miast dąży do znacznego zmniejszenia emisji do roku 2050. Transport wytwarza około 30 procent całkowitej emisji. W tym kontekście, zastosowanie elektrycznych autobusów może przyczynić się do istotnego zmniejszenia zużycia energii i emisji zanieczyszczeń w transporcie publicznym. Stopniowe zastępowanie floty pojazdów wykorzystujących paliwa kopalniane przez floty autobusów zasilanych w sposób elektryczny wymaga oszacowania wpływu takiej zmiany na poziom emisji. Przy oszacowaniu zmniejszenia emisji wykorzystano modele zaimplementowane w aplikacji TRANSIMS, służącej do analiz i symulacji transportu. Modele te zostały odpowiednio skalibrowane oraz dostosowane do analizowanej sieci miejskiej i poziomu emisji autobusów.