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Wyszukujesz frazę "Trams" wg kryterium: Temat


Wyświetlanie 1-3 z 3
Tytuł:
Energy-saving coordination of traffic of some trams driven by induction motors
Autorzy:
Rawicki, S.
Nowak, M.
Powiązania:
https://bibliotekanauki.pl/articles/376025.pdf
Data publikacji:
2016
Wydawca:
Politechnika Poznańska. Wydawnictwo Politechniki Poznańskiej
Tematy:
trams
energy-saving traffic
induction motors
light signalling
Opis:
The paper deals with new software ensuring the ride of some interdependent tram vehicles in accordance with the criterion of the minimum energy consumption. All trams have been driven by vectorially controlled and field oriented three-phase induction motors supplied from the modern inverters. First of all, the influence of light signalling on the coordinated energy-saving traffic of trams has been taken into consideration. In one example there was shown the possible case for three trams ride free from the possibility of collisions. Here the energy savings were the biggest. Every time it is very difficult to ensure the green light for every tram vehicle at the same crossing. There were analysed two variants of disturbances caused by the light signalling: additional short and long tram stop. In the instance of large time lags of the traffic, the ride delay must be liquidated during the run between some succeeding stops.
Źródło:
Poznan University of Technology Academic Journals. Electrical Engineering; 2016, 85; 447-457
1897-0737
Pojawia się w:
Poznan University of Technology Academic Journals. Electrical Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Between elitism and egalitarianism: The Heritage Tram Line in Wrocław as an example of a search for an acceptable tourist product
Autorzy:
Kołodziejczyk, Krzysztof
Powiązania:
https://bibliotekanauki.pl/articles/627400.pdf
Data publikacji:
2020
Wydawca:
Uniwersytet Łódzki. Wydawnictwo Uniwersytetu Łódzkiego
Tematy:
technical monuments
historic trams
transport in tourism
tourist lines
tourist product
Wrocław
Opis:
The Heritage Tram Line is one of the tourist attractions of Wrocław. It is a way of making use of a large and diverse collection of historic trams that illustrate the development of public transport in the capital of Lower Silesia and, more broadly, in Central Europe. Although it has been operating since 2009, in recent years major modifications have been introduced including increasing the number of routes, a guided commentary on selected journeys, diversifying the historic tram cars and changing the ticket prices. The aim of the article is to evaluate these changes from the perspective of the interest of its users. The data on the frequency of operation and sales of tickets in the 2019 season have been analysed and compared with data from the previous year. This takes into account the increase in availability of the offer, as a consequence of a considerable reduction in ticket prices and introducing a larger number of stops, which has made the Heritage Tram Line more similar to a regular one. The changes introduced have resulted in a greater number of passengers, but also lower revenues as well as certain organisational problems such as ensuring the quality of guided services when passengers are being exchanged at intermediate stops. These issues are considered in the context of how to design a tourist product.
Źródło:
Turyzm; 2020, 30, 1; 105-121
0867-5856
2080-6922
Pojawia się w:
Turyzm
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Identification of safety hazards and operating conditions of the low-floor tram with independently rotating wheels with various drive control algorithms
Autorzy:
Konowrocki, Robert
Kalinowski, Dariusz
Szolc, Tomasz
Marczewski, Artur
Powiązania:
https://bibliotekanauki.pl/articles/1841837.pdf
Data publikacji:
2021
Wydawca:
Polska Akademia Nauk. Polskie Naukowo-Techniczne Towarzystwo Eksploatacyjne PAN
Tematy:
maintenance of safety
reliability of trams
derailment of tramcar
numerical tests
drive with independently rotating wheel
SIMPACK Rail
Opis:
The aim of the article is to develop a method for the analysis of tram dynamics related to safety during operation. To achieve this, a mathematical model of the vehicle represented by a multibody simulation MBS system is used. Models of tram with a classic and innovative drive, based on a system of independently rotating wheels on crank axles are analyzed. A new configuration of an innovative drive control of the considered vehicle with the use of braking of independent wheels is proposed. A new geometry of test track is presented. During numerical investigation the values of ‘Y’ leading forces of tram wheels with the considered innovative drive proved to be lower than in the corresponding vehicle with standard wheelsets. It has been demonstrated that the active control systems are of key importance and should be applied in such innovative tram drives.
Źródło:
Eksploatacja i Niezawodność; 2021, 23, 1; 21-33
1507-2711
Pojawia się w:
Eksploatacja i Niezawodność
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-3 z 3

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