Development of a promising system for diagnosing the frogs of railroad switches using the transverse profile measurement method

Abstract

<p>We have developed a system for diagnosing the frogs of railroad switches, based on the application of modern microcontrollers of the type ESP with high technical characteristics and the simultaneous use of the information technology IoT (Internet of Things). The proposed system has advantages over mechanical systems in terms of the accuracy of data, their operational processing and submission to user in order to analyze technical condition of frogs at railroad switches. The results of measuring the transverse profile of frogs at railroad switches make it possible to take scientifically-substantiated decisions regarding the need for recovery repair of frogs by the method of surfacing and for control over gradual decrease in their carrying capacity, for establishing their actual technical condition and residual resource.</p><p>We carried out experimental-theoretical research into longitudinal profile of frogs at railroad switches laid on the reinforced concrete bars. It was established as a result that after passing 50–65 million tons of cargo (that corresponds to the medium degree of wear) the trajectory takes the shape of a bump. We observe sharp hollows on the reinforced concrete base in the zone where a wheel rolls from a rail wing onto the core, characterized by significant total inclination. Subsequently, when the passed cargo increases, the number of sinusoidal irregularities grows. At wear close to maximal (80–95 million tons passed), the percentage of unfavorable trajectories (sinusoidal and hollows) grows; at low wear, they make up 49.8 %, at a wear of 5–6 mm and larger – 88.3 %. Sometimes there is a transformation of the sinusoidal irregularities into the wave-shaped ones.</p><p>We have established characteristic motion trajectories of the center of mass of the wheel over the frog depending on the wear of rail wings and the core of a frog and the passed cargo. A mathematical model was constructed for predicting the wear of frog profile depending on the total weight of passed cargo.</p>

Authors and Affiliations

Vitalii Kovalchuk, Mykola Sysyn, Yuriy Hnativ, Olena Bal, Bogdan Parneta, Andriy Pentsak

Keywords

Related Articles

Study into the structural­phase transformations accompanying the resource­saving technology of metallurgical waste processing

<p>The paper reports a study into the physical-chemical properties of a doped alloy obtained from reduction smelting. That was necessary to identify the parameters that reduce the loss of Ni and Cr when processing oxide...

Study of the free surface energy of epoxy composites using an automated measurement system

<p>Results of development of the automated measurement system (AMS) for determining contact wetting angles and calculations of components of free surface energy (FSE) of solid surfaces by the Van Oss-Chaudhury-Good metho...

Development of a system for graphic captcha systems recognition using competing cellular automata

<p>Peculiarities of the use of competing cellular automata for problems of recognition of complex captcha systems have been explored. For this purpose, the concept of competing cellular automata has been introduced and a...

Analysis of the technology to manufacture a high-temperature microstrip superconductive device for the electromagnetic protection of receivers

<span lang="EN-US">Technological features of the process of manufacturing a high-speed high-temperature superconducting microstrip protective device which can reduce in a picosecond period (the time of switching or opera...

Simulation of a gas and air flow exhausted by production equipment

<p>The paper provides the results of researching the influence of the gas and air flow at the exit from the pipeline of the technological channel on the performance of a gas and air power unit. It has been determined tha...

Download PDF file
  • EP ID EP527844
  • DOI 10.15587/1729-4061.2018.125699
  • Views 117
  • Downloads 0

How To Cite

Vitalii Kovalchuk, Mykola Sysyn, Yuriy Hnativ, Olena Bal, Bogdan Parneta, Andriy Pentsak (2018). Development of a promising system for diagnosing the frogs of railroad switches using the transverse profile measurement method. Восточно-Европейский журнал передовых технологий, 2(1), 33-42. https://europub.co.uk./articles/-A-527844