Analysis of selected vibroacoustic signals recorded on EMU vehicle running on chosen routes under supervised operating conditions

Kostrzewski, Mariusz

doi:10.21595/vp.2017.18958

Cited by 8 publications

(9 citation statements)

References 13 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Both equalities (6)- (8) and our experimental research demonstrate that by means of the equivalent samples of the noise " ( ∆ ), we can obtain results that are identical to the results of the analysis of the same vibration signals with known real samples of the noise ( ∆ ). To this end, we use the formula (10) to determine the equivalent samples " ( ∆ ) of the useful vibration signal ( ∆ ).…”

Section: Algorithms For Analysis Of Noisy Vibration Signals Using Equsupporting

confidence: 68%

“…Intelligent system of noise control of the technical condition of railroad tracks 69. (8) Numerous computational experiments have shown that despite possible deviations of the approximate values of the equivalent samples " ( ∆ ) from their true values ( ∆ ) by the value ∆ ( ∆ ) = " ( ∆ ) − ( ∆ ), the following equality takes place between their estimates:…”

Section: Algorithms For Analysis Of Noisy Vibration Signals Using Equmentioning

confidence: 99%

“…It is advisable to take into account that one of the most effective methods of diagnostics of the technical condition of railroad tracks is based on the use of vibrations of the soil of embankments caused by the rolling stock [2][3][4][5][6][7][8]. The prerequisite for the application of the vibration method is that a certain condition of embankments corresponds to a group of diagnostic signs of a dynamic process that occur during the movement of trains.…”

Section: Problem Statementmentioning

confidence: 99%

See 2 more Smart Citations

Intelligent System of Noise Control of the Technical Condition of Railroad Tracks

et al. 2021

View full text Add to dashboard Cite

It is shown that modern geometry cars, flaw detector cars and other track test cars provide reliable control of the technical condition of all hauls of the railroad track at "certain intervals of time". Their number is limited and therefore "continuous monitoring" of all hauls is almost impossible. At the same time, in real life, due to the impact of various factors, such as seismic processes, certain changes take place even a day after control. The authors consider one option for continuous monitoring of the beginning of changes in the technical condition of the track using intelligent tools, which allow one, by analyzing the useful signal and the noise from the soil vibrations caused by the rolling stock, to create informative attributes for identifying the technical condition of the track. The application of traditional technologies of correlation and spectral analysis and other methods for this purpose does not allow ensuring adequacy of the control results. This paper proposes a technology for extracting and analyzing useful vibration signals, the noise of vibration signals and the relationship between them. The estimates of both correlation and spectral characteristics of the useful signal and the noise are used as the main carriers of diagnostic information. Due to the simplicity and the reliability of implementation of the proposed technical tools, they can be easily installed in one of the cars of all rolling stocks, providing control of the beginning of changes in the technical condition of the track during their movement in all hauls.

show abstract

Section: Algorithms For Analysis Of Noisy Vibration Signals Using Equsupporting

confidence: 68%

Section: Algorithms For Analysis Of Noisy Vibration Signals Using Equmentioning

confidence: 99%

Section: Problem Statementmentioning

confidence: 99%

See 1 more Smart Citation

Intelligent System of Noise Control of the Technical Condition of Railroad Tracks

et al. 2021

View full text Add to dashboard Cite

show abstract

“…Generally, road irregularities represent undesirable effects, which come to a human body through tyres, a suspension system, a seat cushion etc. Then, they influence vibration properties of a vehicle mechanical system [12,18,20,25].…”

Section: Mbs Model Of a Vehiclementioning

confidence: 99%

Evaluation of Vibrational Properties of a Three-wheeled Vehicle in Terms of Comfort

Dižo¹,

Blatnický²

2019

Manufacturing Technology

View full text Add to dashboard Cite

Vibrational properties of road vehicile are ussually evaluated according to two criterions, i. e. in terms of comfort for passengers and in terms of drive safety and roadway load. The topic of this article is focused on evaluation of passenger's ride comfort of a three-wheeled road vehicle. From the ride comfort point of view vertical vibration is decisive. Vertical vibration is given by obtained accelerations in given position on an assessed vehicle when it is driving on a road with various surface qualities within required time intervals. In the vehicle's design phase its vibrational properties are detected and evaluated by means of simulation computations on a virtual model. In our research we have assessed ride comfort of the three-wheeled vehicle, which were designed in our workplace. For purposes of dynamic analyses we have used multibody approach using Simpack software. The objective of this work is verification of the relevance of the current mounted suspension system for the greater driving speeds range of the three-wheeled vehicle and for different road qualities.

show abstract

mentioning

confidence: 99%

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

Dižo¹,

Blatnický²,

Bárta³

et al. 2019

Diagnostyka

View full text Add to dashboard Cite

Vibration properties of road vehicles can be in principles evaluated using two ways, i. e. by simulation computations using a virtual model of a vehicle and by measuring on a real vehicle prototype, whereby, their dynamical properties are usually assessed in compliance with to two criterions, namely from the ride comfort for passengers point of view and from the driving safety point of view. The topic of this article is focused on evaluation of passenger's ride comfort of a tricycle. In this regard, vertical movements of a vehicle are most important. In respect of ride comfort for passengers, accelerations in vertical direction are critical. Accelerations are usually detected on a seat. In regard of driving safety, value of the contact force between a wheel and a road are decisive. In our research we present process of investigation of level of ride comfort for passengers and level of driving safety of a tricycle based on simulation computations using the tricycle multibody model.

show abstract

Analysis of selected vibroacoustic signals recorded on EMU vehicle running on chosen routes under supervised operating conditions

Cited by 8 publications

References 13 publications

Intelligent System of Noise Control of the Technical Condition of Railroad Tracks

Intelligent System of Noise Control of the Technical Condition of Railroad Tracks

Evaluation of Vibrational Properties of a Three-wheeled Vehicle in Terms of Comfort

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

Contact Info

Product

Resources

About