Autor: Yutkina, I. - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Development of generalized dynamic model of oscillations of cylinder case of diesel engine of locomotive
Разработка обобщенной динамической модели колебаний гильзы цилиндра дизеля тепловоза
Autorzy:: Yutkina, I.
Powiązania:: https://bibliotekanauki.pl/articles/374350.pdf
Data publikacji:: 2014
Wydawca:: Politechnika Śląska. Wydawnictwo Politechniki Śląskiej
Tematy:: dynamic model
cylinder case
pulsed pressure
model dynamiczny
ciśnienie impulsowe
Opis:: An engineering method of design, worked out by the authors, is considered in the paper. It allows to carry out design of amplitude-frequency specter and vibration loading of cylinder cases of the diesel engine of locomotive with account of cavitationerosion damage. Offered method of design of parameters of cavitation-erosion damage may be used in design of new structures of diesel engines of locomotives and systems of cooling.
В статье приведен полученный авторами инженерный метод расчета, позволяющий проводить расчет амплитудно-частотного спектра и вибрационного нагружения цилиндровых гильз дизеля тепловоза с учетом кавитационно-эрозионного разрушения. Предложенный метод расчета параметров кавитационно-эрозионного разрушения можно использовать при проектировании новых конструкций дизелей тепловозов и систем охлаждения.
Źródło:: Transport Problems; 2014, 9, 1; 95-102
1896-0596
2300-861X
Pojawia się w:: Transport Problems
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Mathematical model of oscillations of bearing body frame of emergency and repair railcars
Autorzy:: Khromova, G.
Mukhamedova, Z.
Yutkina, I.
Powiązania:: https://bibliotekanauki.pl/articles/375099.pdf
Data publikacji:: 2017
Wydawca:: Politechnika Śląska. Wydawnictwo Politechniki Śląskiej
Tematy:: railcar
analytical-numerical method
reliability
strength
main frame of the body
wagon
metoda analityczno-numeryczna
niezawodność
wytrzymałość
Opis:: Nowadays, the importance of maintenance and effective use of available railcars in the railway transport is growing, and researchers and technical experts are working to address this issue with the use of various techniques. The authors address the use of analytical technique, which includes mathematical solutions for flexural and longitudinal fluctuations of the bearing framework of a railcar body frame. The calculation is performed in connection with the modernization of the body frame of emergency and repair rail service car, taking into account the variability in section, mass, longitudinal stiffness, and bending stiffness. It allows for extension of the useful life of their operation, with special focus on vehicles owned by Joint-Stock Company "Uzbekistan Railways". The simulation of equivalent bearing body frame of emergency and repair rail service car was carried out using an elastic rod with variable parameters including stiffness and mass. The difference between the proposed model and the existing ones is due to the variability in cross section, mass, and the longitudinal and bending stiffness along the length of equivalent beam, which corresponds to the actual conditions of operation and data of the experimental studies conducted by the authors on the bearing frames of electric locomotives’ variable sections. The frequency analysis that was carried out with the use of the Mathcad 14 programming showed that the frequencies of natural oscillations change on n harmonicas = 1, 2, 3 … 5. As regards longitudinal oscillations of system, in case of introduction of the damping subfloor, the frequency of natural oscillations of the upgraded rail car frame λ1mn increases on comparing with standard λ1n (for example, in case of n = 5 the frequency is 0.587 and 0.602 Hz/m, respectively).
Źródło:: Transport Problems; 2017, 12, 1; 93-102
1896-0596
2300-861X
Pojawia się w:: Transport Problems
Dostawca treści:: Biblioteka Nauki

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