Search results

Filters

  • Journals
  • Authors
  • Keywords
  • Date
  • Type

Search results

Number of results: 4
items per page: 25 50 75
Sort by:
Download PDF Download RIS Download Bibtex

Abstract

The analysis of ecological hazards on soil pollution by oil products has been provided in the impact zone of the railway. The results of oil product migration in soils in the area of influence on section Lviv–Khodoriv are given. To study this problem, a method was used to take soil samples according to the standard DSTU ISO 10381-4: 2005. To determine the content of petroleum products used the method MVV No. 081/12-0116-03 Pochvy. Based on the results of the study it was found that contamination with petroleum products in the study area exceeds the norm in the area of influence of the railway at a distance of 5 to –50 m on average 3.5 times. It is proposed to make management decisions to prevent violations of the sanitary protection zone of the railway and the placement of agricultural plots on it. For rehabilitation of contaminated soils, it is advisable to use a natural sorbent – glauconite, which is widespread in the bowels of Ukraine. The adsorption capacity of glauconite relative to diesel fuel has been experimentally established. According to our experiments it is proved the high efficiency of the proposed sorbent, which is 90%. Therefore, in the future it is necessary to periodically monitor the condition of the soil in the area to prevent pollution. This study proves that this practice is necessary.
Go to article

Authors and Affiliations

Oksana Chayka
1
ORCID: ORCID
Igor Petrushka
1
ORCID: ORCID
Maria Ruda
1
ORCID: ORCID
Nadiya Paranyak
1
ORCID: ORCID
Olena Matskiv
1
ORCID: ORCID

  1. Lviv National Polytechnic University, Faculty of Ecological Safety and Environmental Protection, Stepana Bandery St, 12, Lviv, Lviv Oblast, 79000, Ukraine
Download PDF Download RIS Download Bibtex

Abstract

The paper analyzes the prospects for the formation and implementation of digital data transmission technologies on railways of Kazakhstan, taking into account the potential for the development of high-speed railway transport (HSRWT), as well as new approaches for solving the development problems of advanced automated dispatch control systems (ADCS). It was shown that the solution of these problems is possible by automatization of the train traffic coordination based on the use of the potential of the GPRS data transmission technology. The work further developed models and algorithms used in ADCS of the railway transport. There has been carried out the formalization of the tasks of navigation data transmission for ADCS and for the subsystems of the railway rolling stock movement coordination, including HSRWT using GPRS data transmission technology. Also, the article describes a modernized algorithm for simulation of the GPRS channels operation in ADCS. The proposed algorithm differs from the existing ones by the ability to make predictive estimates for determination of the railway rolling stock location. Also, the developed algorithm provides opportunities for coordination of the trains movement, taking into account the optimization of the GPRS resources use.

Go to article

Authors and Affiliations

Bakhytzhan Akhmetov
Valeriy Lakhno
Gulzada Yerkeldessova
Taizhan Sarzhanov
Dmitriy Issaikin
Download PDF Download RIS Download Bibtex

Abstract

In order to improve the operational reliability and service life of the main systems, components and assemblies (SCA) of railway transport (RT), it is necessary to timely detect (diagnose) their defects, including the use of the methods of intellectual analysis and data processing.
One of the promising approaches to the synthesis of the SCA functional control system is the use of intelligent technology (INTECH) methods. This technology is based on maximizing the information capacity of an automated decision support system for detecting faults during its training.
Go to article

Bibliography

[1] M. Schickert, I. Aydin, M. Karak¨ose, E. & Akin, ”A new contactless fault diagnosis approach for pantograph-catenary system,” in MECHATRONIKA, 2012 15th International Symposium, pp. 1-6, IEEE, 2012.
[2] A. Le Mortellec, J. Clarhaut, Y. Sallez, D. Berger, & Trentesaux, ”Embedded holonic fault diagnosis of complex transportation systems,” Engineering Applications of Artificial Intelligence, 26(1), pp. 227-24, 2013.
[3] Ph M. Papaelias, C. Roberts, L.C. & Davis, ”A review on non-destructive evaluation of rails: state-of-the-art and future development,” Proceedings of the Institution of Mechanical Engineers, Part F: Journal of Rail and Rapid Transit, 222(4), pp. 367-384, 2008.
[4] J. Seeliger, Mackel, D. Georges, ”Measurement and diagnosis of process-disturbing oscillations in high-speed rolling plants,” in Proc. XIV IMEKO World Congress, 2002.
[5] X.S. Jin, J. Guo, X.B. Xiao, Z.F. Wen, & Z.R. Zhou, ”Key scientific problems in the study on running safety of high speed trains,” Engineering Mechanics, 26 (Sup II), pp. 8–25, 2009.
[6] L. Mariani, F. Pastore, & M. Pezze, ”Dynamic analysis for diagnosing integration faults,” IEEE Transactions on Software Engineering, 37(4), pp. 486-508, 2011.
[7] Y.C. Huang, H.C. Sun, ”Dissolved gas analysis of mineral oil for power transformer fault diagnosis using fuzzy logic,” IEEE Transactions on Dielectrics and Electrical Insulation, 20(3), pp. 974-981, 2013.
[8] Orb´an, Zolt´an, and Marc Gutermann, ”Assessment of masonry arch railway bridges using non-destructive in-situ testing methods,” Engineering Structures, 31.10 (2009): pp. 2287-2298, 2009.
[9] Yella, Siril, M. S. Dougherty, and N. K. Gupta, ”Artificial intelligence techniques for the automatic interpretation of data from non-destructive testing,” Insight-Non-Destructive Testing and Condition Monitoring, 48.1: pp. 10-20, 2006.
[10] P.S. Bhowmik, S. Pradhan, M. Prakash, ”Fault diagnostic and monitoring methods of inductionmotor: a review,” International Journal of Applied Control, Electrical and Electronics, Vol. 1, pp. 1-18, 2013.
[11] Petr Dolezel, Pavel Skrabanek, Lumir Gago, ”Pattern recognition neural network as a tool for pest birds detection,” Computational Intelligence, SSCIIEEE Symposium Series on, pp. 1-6, 2016.
[12] V. Lakhno, Y. Tkach, T. Petrenko, S. Zaitsev, & V. Bazylevych, V. ”Development of adaptive expert system of information security using a procedure of clustering the attributes of anomalies and cyber attacks,” Eastern-European Journal of Enterprise Technologies, (6 (9)), pp. 32- 44, 2016.
[13] V. Lakhno, ”Creation of the adaptive cyber threat detection system on the basis of fuzzy feature clustering,” Eastern-European Journal of Enterprise Technologies, 2.9 2016:18, 2016.
[14] V.A. Lakhno, P.U. Kravchuk, V.P. Malyukov, V.N. Domrachev, L.V. Myrutenko, O.S. Piven, ”Developing of the cyber security system based on clustering and formation of control deviation signs,” Journal of Theoretical and Applied Information Technology, Vol. 95, Iss. 21, pp. 5778-5786.
[15] A.S. Dovbish, ”Osnovi proektuvannja ntelektualnih sistem” / A.S. Dovbish. Sumi: SumDU, 171 p., 2009.
[16] X. Zhang, N. Feng, Y. Wang, & Y. Shen, ”Acoustic emission detection of rail defect based on wavelet transform and Shannon entropy,” Journal of Sound and Vibration, p. 419-432, 2015.
[17] A. Giantomassi, F. Ferracuti, S. Iarlori, G. Ippoliti, & S. Longhi, ”Electric motor fault detection and diagnosis by kernel density estimation and Kullback–Leibler divergence based on stator current measurements,” IEEE Transactions on Industrial Electronics, 2015, 62(3), pp. 1770- 1780, 2015.
Go to article

Authors and Affiliations

Ayaulym Oralbekova
1
Marzhana Amanova
1
Kamila Rustambekova
1
Zhanat Kaskatayev
1
Olga Kisselyova
2
Roza Nurgaliyeva
1

  1. Kazakh University Ways of Communications, Almaty, Kazakhstan
  2. Kazakh Academy of Transport and Communications named after M. Tynyshpayev, Almaty, Kazakhstan
Download PDF Download RIS Download Bibtex

Abstract

Automation of data processing of contactless diagnostics (detection) of the technical condition of the majority of nodes and aggregates of railway transport (RWT) minimizes the damage from failures of these systems in operating modes. This becomes possible due to the rapid detection of serious defects at the stage of their origin. Basically, in practice, the control of the technical condition of the nodes and aggregates of the RWT is carried out during scheduled repairs. It is not always possible to identify incipient defects. Consequently, it is not always possible to warn personnel (machinists, repairmen, etc.) of significant damage to the RWT systems until their complete failure. The difficulties of obtaining diagnostic information is that there is interdependence between the main nodes of the RWT. This means that if physical damage occurs at any of the RWT nodes, in other nodes there can also occur malfunctions.

As the main way to improve the efficiency of state detection of the nodes and aggregates of RWT, we see the direction of giving the adaptability property for an automated data processing system from various contactless diagnostic information removal systems. The global purpose can be achieved, in particular, through the use of machine learning methods and failure recognition (recognition objects). In order to improve the operational reliability and service life of the main nodes and aggregates of RWT, there are proposed an appropriate model and algorithm of machine learning of the operator control system of nodes and aggregates. It is proposed to use the Shannon normalized entropy measure and the Kullback-Leibler distance information criterion as a criterion of the learning effectiveness of the automated detection system and operator node state control of RWT. The article describes the application of the proposed method on the example of an automatic detection system (ADS) of the state of a traction motor of an electric locomotive. There are given the test data of the model and algorithm in the MATLAB environment.

Go to article

Authors and Affiliations

Bakhytzhan Akhmetov
Valeriy Lakhno
Ayaulym Oralbekova
Zhanat Kaskatayev
Gulmira Mussayeva

This page uses 'cookies'. Learn more