Application of simulation computations in investigation of vibration properties of a tricycle

Dižo, Ján; Blatnický, Miroslav; Bárta, Dalibor; Melnik, Rafał

doi:10.29354/diag/111827

Cited by 4 publications

(4 citation statements)

References 14 publications

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“…Thus, in [10][11], a simplified analysis of the manoeuvrability and stability of vehicle combinations, such as a tractor in combination with 1 Formulation of the problem One of the main problems of the modern big city is the global crisis of normal functioning of the urban environment due to the structural growth of the motorization level, oversaturation of the road network with traffic flows. This leads to a sharp deterioration in transport services, traffic jams, rising noise and air pollution, a practical drop in speed, rising energy costs, increasing the victim's number of road accidents [1][2][3][4][5][6][7][8][9].…”

Section: Analysis Of Scientific Publicationsmentioning

confidence: 99%

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The Stability Indicators of the Section Articulated Buses

Sakhno¹,

Gerlici²,

Poliakov³

et al. 2022

Komunikácie

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The mathematical model of a multi-section articulated bus has been improved in the article, which allowed to determine the stability indicators of the two and three-section articulated buses for the Metrobus system. The critical speed for the three-section articulated bus was 28.06 m/s and for the two-section articulated bus -30.89 m/s. Since the motion of multi-section articulated buses will be carried out on separate lanes with a speed of 25 -28 m/s, one can assume that the stability of rectilinear traffic of both two and three-section buses is provided. In non-stationary modes of motion with two-section articulated buses, the lateral speed of the first bus decreases by almost 8.5 % compared to the three-section and the second trailer-bus increases by almost 9.5 % compared to the three-section. In this case, the motion stability of multi-section articulated buses can be considered satisfactory, as the lateral accelerations in the center of mass of all sections do not exceed 0.45 g.

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Section: Analysis Of Scientific Publicationsmentioning

confidence: 99%

“…The main economic advantage of a high-speed bus over a regular one is much lower fuel consumption per passenger [1][2][3][4][5][6][7][8][9]. This is achieved through rational, specially designed driving modes.…”

Section: Analysis Of Scientific Publicationsmentioning

confidence: 99%

The Stability Indicators of the Section Articulated Buses

Sakhno¹,

Gerlici²,

Poliakov³

et al. 2022

Komunikácie

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“…For these purposes, they have created many simulation models, performed a large number of computer simulations and undertaken investigations by means of test stands [31,32]. Their research deals mainly with rail vehicles [28,[33][34][35] and road vehicles [36][37][38][39][40]. During these activities, various phenomena have been observed.…”

Section: Motivation and The Research Goalmentioning

confidence: 99%

Evaluation of Ride Comfort in a Railway Passenger Car Depending on a Change of Suspension Parameters

Dižo

Blatnický

Gerlici

et al. 2021

Sensors

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Ride comfort for passengers remains a pressing topic. The level of comfort in a vehicle can influences passengers’ preferences for a particular means of transport. The article aims to evaluate the influence of changes in suspension parameters on the ride comfort for passengers. The theoretical background includes a description of the applied method for a creating the virtual model of an investigated vehicle as well as the method of evaluating the ride comfort. The ride comfort of the vehicle is assessed based on the standard method, which involves calculating the mean comfort method, i.e., ride comfort index NMV in chosen points on a body floor. The NMV ride comfort index (Mean Comfort Standard Method) requires the input of acceleration signals in three directions. The rest of the article offers the results of simulation computations. The stiffness–damping parameters of the primary and secondary suspension systems were changed at three levels and the vehicle was run on the real track section. The ride index NMV was calculated for all three modifications of the suspension system in the chosen fifteen points of the body floor. It was found that lower values in the stiffness of the secondary suspension system lead to lower levels of ride comfort in the investigated railway passenger car; however, lower values in the stiffness–damping parameters of the primary suspension system did not decrease the levels of ride comfort as significantly.

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“…When such a wheelset is entering the arc, the wheelrail contact point location changes -similar to the usual practice used for ride in the facing rails, located in the immediate vicinity of the point frog [22]. The aim of the paper is to provide a comparison of these two cases by simulation analysis of vehicle driving in the calculation program [23,24].…”

Section: Introductionmentioning

confidence: 99%

Double tread wheel profile – proposal and justification of specific way how to pass along small radius track

et al. 2018

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In urban railway environments, in many respects, the problem of tramcars passing small radius arches appears to be topical. In this regard, the authors proposed that the wheelsets should be complemented on the outer side of the wheels with a second tread of a lower radius, intended exclusively for ride in arches of the track with a radius which the conventional wheelsets cannot even theoretically pass without creep. The complemented wheel tread enters into operation (or out of action) as a result of passing over a specially shaped rail located in the intersections before and behind the small radius arc. In this process, there is a change in the wheel-rail contact location - similar to what is commonly used when riding on a facing rail located in the immediate vicinity of the point frog. The paper deals with the comparison of these two cases based on a simulation analysis of vehicle ride in the calculation program.

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Application of simulation computations in investigation of vibration properties of a tricycle

Cited by 4 publications

References 14 publications

The Stability Indicators of the Section Articulated Buses

The Stability Indicators of the Section Articulated Buses

Evaluation of Ride Comfort in a Railway Passenger Car Depending on a Change of Suspension Parameters

Double tread wheel profile – proposal and justification of specific way how to pass along small radius track

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