Browsing by Author "Dailydka, Stasys"

Now showing 1 - 4 of 4
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    Determination of the Dynamic Characteristics of Freight Wagons with Various Bogie
    (Taylor & Francis, 2015) Myamlin, Serhiy V.; Lingaitis, Leonas P.; Dailydka, Stasys; Vaičiūnas, Gediminas; Bogdevičius, Marijonas; Bureika, Gintautas
    EN: In most cases, dynamic characteristics determine the wagon maintenance cycle, traffic safety, reliability and durability performance. The main dynamic indicators include the vertical Kvd and horizontal Khd dynamic coefficients as well as the stability coefficient Ks, which determines the wheel flange resistance to derailment. The article compares dynamic indications for three different types of bogies. There were no tangible differences observed for all the three different types of bogies running at a speed of 40 to 120 km/h on a direct tangent rail section. Nevertheless, there is a realistic potential to improve the dynamic indicators of a freight wagon by rationalising suspension unit parameters.
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    Mathematical Modeling of a Cargo Locomotive
    (2012) Myamlin, Serhiy V.; Dailydka, Stasys; Neduzha, Larysa O.
    EN: Actuality and explanation of development of six-axle mainline locomotive ER20CF for Lithuania Railways are done. For carrying out of theoretical researches with purpose of providing safety movement, strength of constructions elements, improved dynamical characteristics, was examined some aspects of mathematical simulation of dimensional hunting of freight locomotive.
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    Nestacionarieji ir Kvazistatiniai Gelezinkelio Traukiniгu Judejimo Rezimai
    (Vilniaus Gedimino Technicos Universitetas leidykla Technika, Vilnius, 2015) Blochinas, Eugenijus; Dailydka, Stasys; Lingaitis, Leonas P.; Ursuliak, Liudmyla V.
    LT: Monografija "Nestacionarieji ir kvazistatiniai gelezinkelio traukiniu judejimo rezimai" skirta skaitytojui, besidominciam traukinyje, kaip netiesineje daugiamaseje mechanineje sistemoje, vykstanciais procesais. Sie vyksta traukiniui pajudant is vietos, stabdant, keiciant traukos jega, judant kalnuoto profilio keliu. Knygoje aprasomos uzduotys sprendziamos taikant traukiniu judejimo pereinamuju arba nestacionariuju procesu teorija. Tam sukurta speciali programine iranga, pagrista monografijos autoriu sukurta traukiniu judejimo pereinamuju rezimu teorija. Knyga sudaryta taip, kad skaitytojas pradzioje susipazintu su traukiniu sastatu schemomis ir matematiniais modeliais traukinio judejimui modeliuoti. Taip pat aprasoma informacines sistemas "Traukinio dinamikos analizatorius" elementu tarpusavio sasaja. Autoriai monografija rekomenduoja gelezinkeliu traukos klausimus nuodugniau nagrinejantiems doktorantams ir pazengusiems magistrantams.
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    Research on Selection of Modes of Driving Heavy Trains on Main IXB and IXD Corridors of JSC "lietuvos Geležinkeliai"
    (Wydawnictwo Politechniki Śląskiej Gliwice, 2012) Lingaitis, Leonas Povilas; Dailydka, Stasys; Jevdomacha, Grigorij; Evdomakha, Grigory V.
    EN: Abstract. Optimum haul times of running for a train schedule and mode diagrams corresponding thereto calculated using the program system passed operational check with the purpose to obtain reliable statistical estimation of their impact on reduction of the fuel consumption on haulage of trains and level of longitudinal dynamic efforts. The optimal speed of the train is chosen (defined) taking into account the given travel time and the longitudinal track profile, when the Diesel locomotive fuel consumption are minimum. Results of experimental research with long trains, weight up to 8000 tons, are presented herein. Experimental operational trips confirmed the correctness of theoretical preconditions and techniques of selection of optimum modes of driving of long trains, demonstrated potential for decrease of level of longitudinal dynamic efforts by 1.5-2 times and achievement of fuel economy on haulage up to 5-8 % when such trains move on a site with the undulating way profile.