Letteratura scientifica selezionata sul tema "Risteykset"
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Articoli di riviste sul tema "Risteykset"
Räsänen, Pajari. "Arvostelut". AVAIN - Kirjallisuudentutkimuksen aikakauslehti, n. 1 (1 marzo 2013): 88–92. http://dx.doi.org/10.30665/av.74903.
Testo completoTurpiainen, Riku. "Uusliberalismin ja uskonnon risteyksiä". Uskonnontutkija - Religionsforskaren 12, n. 1 (8 dicembre 2023). http://dx.doi.org/10.24291/uskonnontutkija.141809.
Testo completoLaako, Hanna. "Erämaiden omimisesta häilyviin metsänreunakohtaamisiin". Alue ja Ympäristö, 13 dicembre 2022, 00. http://dx.doi.org/10.30663/ay.119501.
Testo completoTesi sul tema "Risteykset"
Moilanen, M. (Markus). "Rautatievaihteen risteyksen dynaamisen kuormituksen mallinnus". Master's thesis, University of Oulu, 2016. http://urn.fi/URN:NBN:fi:oulu-201612013133.
Testo completoThis paper investigates the dynamic load of a Finnish railway turnout crossing by means of computer-aided design and simulation. The aim is to determine both the effect on the dynamic load at a railway crossing caused by a wheelset which is designed for a different track gauge and also the effect of wheel with a false flange. The research problem concerns the interaction between a simple turnout of a type YV54-200-1:9 and its interaction with a wheelset with a S1002 wheel profile used, as well as the profile of the wheel according to the Russian GOST standard from which the effect of a false flange wheel depth is also examined. The study was carried out as a literature review of railway turnouts and their construction, as well as the methods used in the modelling of the interaction between the train and the railway track. For the simulation of the interaction between the wheelset and the turnout crossing the geometry of the turnout crossing is modelled reversely from dimensional drawings to a 3D-model using the computer-aided design (CAD) and from the 3D-model a cross-sectional profiles of the entire turnout crossing is formed. The data of the crossing geometry defined by the cross-sectional profiles was exported to multi body simulation (MBS) software which was used to describe the dynamic model of the wheelset and the track. Simulation was performed in the facing move in the through route. On the basis of the simulation results, the geometry of the wheel profiles has a major impact on the dynamic load in a turnout crossing nose. When using the wheel profile according to the Russian GOST standard, the increment in the profile of the wing rail will not raise the wheelset upwards enough, leading the wheel facing the crossing nose prematurely and causing a high dynamic load. A low false flange formed on the wheel to reduces the magnitude of the dynamic load, but the load increases together with the false flange depth. The wheelset with the wheels according to an S1002 profile will raise upwards along the increment in the wing rail so the wheel does not face the crossing nose too early, thus the impact force is lower compared to the Russian wheel. On the basis of the work, the durability of the crossing nose to the dynamic load can be increased by at least three ways: by using a spring frog instead of a solid turnout crossing, increasing the wheel condition monitoring regarding the wheel profiles, or changing the material of a turnout crossing to manganese steel. During this work the wheel profile condition monitoring has already been added as part of the rolling stock condition monitoring
Libri sul tema "Risteykset"
kaupunginmuseo, Riihimäen, a cura di. Risteysasema Riihimäki: 140 vuotta Riihimäki-Pietari-radan avaamisesta. Riihimäki: Riihimäen kaupunginmuseo, 2010.
Cerca il testo completoSalminen, Antti, Jukka Mikkonen e Joose Järvenkylä. Kirjallisuus ja filosofia: Rinnakkaisuuksia, risteyksiä, ristiriitoja. Helsinki: Suomalaisen Kirjallisuuden Seura, 2012.
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