Autor: Murovanyi, I. - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Analysis of transverse stability parameters of hybrid buses with active trailers
Autorzy:: Sakhno, V.
Poliakov, V.
Murovanyi, I.
Selezniov, V.
Vovk, Y.
Powiązania:: https://bibliotekanauki.pl/articles/196391.pdf
Data publikacji:: 2018
Wydawca:: Politechnika Śląska. Wydawnictwo Politechniki Śląskiej
Tematy:: bus
hybrid auto-train
transverse stability
stiffness
suspension
roll
autobus
auto-pociąg hybrydowy
stabilność poprzeczna
sztywność
zawieszenie
rolka
Opis:: The objective of the article is to determine the transverse stability indexes of hinge-connected buses (HCBs) by applying the computation-analytical method. The transverse stability parameters of hybrid buses with active trailers are analysed. Based on these parameters (the angles of the roll and redistribution of loads on the sides), the analytical dependences are developed. The dependences describe the movement of the parts of HCBs in the vertical plane. Considering the action of longitudinal and transverse forces, the roll angles of the bus and the trailer were determined. The limiting angle of the side roll of the bus rollover was found to be γамах = 27.56⁰γмах, and the trailer rollover to be γамах = 30.21⁰. The obtained transverse stability indexes of HCBs with a hybrid power plant testify to the compliance with the standard DSTU UN/ECE R 111-00.
Źródło:: Zeszyty Naukowe. Transport / Politechnika Śląska; 2018, 101; 185-201
0209-3324
2450-1549
Pojawia się w:: Zeszyty Naukowe. Transport / Politechnika Śląska
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Evaluation of strength of carrying metal structures of trailers
Autorzy:: Popovych, P.
Poberezhny, L.
Shevchuk, O.
Murovanyi, I.
Dovbush, T.
Koval, Yu.
Hrytsuliak, H.
Powiązania:: https://bibliotekanauki.pl/articles/368623.pdf
Data publikacji:: 2020
Wydawca:: Stowarzyszenie Komputerowej Nauki o Materiałach i Inżynierii Powierzchni w Gliwicach
Tematy:: trailer
strength
design model
metal construction
bearing frame
potential of minimum potential energy
stress-strain state
przyczepa
wytrzymałość
model projektowy
konstrukcja metalowa
rama nośna
energia potencjalna
stan naprężenie-odkształcenie
Opis:: Purpose: Development of a computational model of stress-strain state bearing elements of trailer frames for preliminary assessment and identification of areas with increased risk of failure. Design/methodology/approach: The object of the study is the processes of loading the load-bearing metal structures of trailers - fertilizer spreaders. The stress-strain state of the spreader bearing system is investigated for the established three typical cases of external load. To refine the values obtained as a result of modelling, they were determined in SOLIDWORKS. Findings: Computational models of load have been compiled by improving the method of minimum potential deformation energy for its effective correct use in analytical studies of a similar type of metal structures. It is proved that for a flat closed frame structure made of thin-walled profiles, loaded with forces perpendicular to the plane of the frame, the levelling of compression and shear energies, as well as axial and transverse forces and bending moments in the horizontal plane does not significantly affect the calculation results. Research limitations/implications: Horizontal components of the shear forces as well as the normal forces and as a consequence the corresponding potential deformation energy are neglected, which has some effect on the accuracy of the calculations. Practical implications: An effective tool for strength analysis with preliminary assessment and diagnostics of load-bearing metal structures based on the constructed calculation models of stress strain state load-bearing frames of typical geometry with an arbitrarily given distribution of external load. Originality/value: A universal algorithm for recording additive functions of bending and torques, as well as the potential deformation energy of welded frames of trailers.
Źródło:: Journal of Achievements in Materials and Manufacturing Engineering; 2020, 100, 2; 58-69
1734-8412
Pojawia się w:: Journal of Achievements in Materials and Manufacturing Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Simulation of thermomechanical processes in disc brakes of wheeled vehicles
Autorzy:: Hrevtsev, O.
Selivanova, N.
Popovych, P.
Poberezhny, L.
Sakhno, V.
Shevchuk, O.
Poberezhna, L.
Murovanyi, I.
Hrytsanchuk, A.
Romanyshyn, O.
Powiązania:: https://bibliotekanauki.pl/articles/1818803.pdf
Data publikacji:: 2021
Wydawca:: Stowarzyszenie Komputerowej Nauki o Materiałach i Inżynierii Powierzchni w Gliwicach
Tematy:: disc brake
wheeled vehicle
angular velocity
thermodynamically reversible process
centrifugal force
time of relaxation
isotropic elastic medium
torsional moment
hamulec tarczowy
pojazd kołowy
prędkość kątowa
siła odśrodkowa
izotropowy ośrodek sprężysty
moment skręcający
Opis:: Purpose: Ensuring the required operational reliability of disc brakes by forecasting their technical condition taking into account thermomechanical processes. Design/methodology/approach: Differential equations of rotation of a rigid body around a fixed axis are solved, it is established that the equations of motion and the equations of thermal conductivity are indirectly related. The use of these analytical dependences provides a better understanding of thermomechanical transients. Findings: The solution is obtained on the basis of the differential equation of thermal conductivity of the hyperbolic type, which does not allow an infinite velocity of propagation of temperature perturbations in contrast to the differential equation of thermal conductivity of the parabolic Fourier type. The obtained analytical dependences provide a better understanding of thermomechanical transients and develop a theoretical basis for determining stresses and heat fluxes in solving problems of reliability and durability of disc brakes. Research limitations/implications: The work uses generally accepted assumptions and limitations for thermomechanical calculations. Practical implications: It is shown, that transients in a mechanical system - a brake disk at impulse loadings cause emergence of thermal effects which arise under the influence of external loadings. Originality/value: The application of these analytical dependences provides a better understanding of thermomechanical transients and develops a theoretical basis for solving problems of reliability and durability of disc brakes.
Źródło:: Journal of Achievements in Materials and Manufacturing Engineering; 2021, 104, 1; 11--20
1734-8412
Pojawia się w:: Journal of Achievements in Materials and Manufacturing Engineering
Dostawca treści:: Biblioteka Nauki

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