Technology to Make Diagnostics of Railroad Tracks Cheaper

Technology to Make Diagnostics of Railroad Tracks Cheaper

The small-sized system uses two inertial measuring modules installed on the diagonally arranged wheels of a railcar.

04.10.2021 127

Today, railroad tracks are examined using track measuring railcars or the manual method. Measurements of a particular section are carried out once every six months for two weeks. The systems installed on track-measuring cars cost about 30 million rubles, which is comparable with the cost of a railcar itself.

A new development of Alexandra Bolshakova, a graduate student of the Department of Laser Measurement and Navigation Systems at LETI, will simplify the design, reduce the weight and dimensions, and thereby increase the economic efficiency of the rail track diagnostics system.

"Our system can be installed on regularly running trains. Thus, more trains will run along the same track, which will make it possible to increase the examination accuracy due to gathered statistics. Equipping cars with such a system will cost from 2 to 3 million rubles per unit, depending on the batch size".

Alexandra Bolshakova, a graduate student of the Department of Laser Measurement and Navigation Systems at LETI

The system proposed by the young researcher will increase the number of track measurements without the need to change the train schedule. The technology will make it possible to find defects and eliminate them promptly.

The development is based on the small-size inertial track diagnostic system created earlier by the scientists of the department, which includes four measuring modules installed on the axleboxes of each wheel of the car bogie.

Alexandra Bolshakova's improved version of the system uses two inertial measurement modules installed on the diagonally positioned wheels of the railcar bogie. Preliminary research as part of the master's thesis showed the possibility of creating a system of such a configuration.

The development is of interest for companies involved in railway transportation, creation and supply of systems and complexes for car-laboratories that monitor the condition of the railroad track.

In 2021, Alexandra plans to conduct several studies that include creating a model of the oscillating system, assessing and identifying the functional dependence of energy distribution in this system, upgrading algorithms for determining the characteristics of the unevenness of the rail track, taking into account the new configuration of the measuring system.