The COMPACS® system
Real-time vibration diagnostics
of machinery with probability close to 1
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In 2001 the quality management system of DYNAMICS SPC was put through facultative certification. In 2018 it was recertified for compliance with standards ISO 9001:2008. Its results confirmed a high level of goods and services quality management.
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Home Customers & responses Responses St. Petersburg-Moscow depot: Response to the operation of the on-board system for electric multiple-unit trains equipment health monitoring COMPACS-EXPRESS-3

St. Petersburg-Moscow depot: Response to the operation of the on-board system for electric multiple-unit trains equipment health monitoring COMPACS-EXPRESS-3

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The 15 ED4M EMU-trains, equipped with the on-board monitoring system COMPACS®-EXPRESS-3, are currently operated in the depot. The first EMU-train, equipped with the given system, began to be operated in the depot in June, 2011. During this time the systems have proved itself as a reliable and effective instrument, enabling to reliably track the changes of the most important assembles and units of EMU-trains in real time; the assembles of mechanical section (bearings of boxes, reduction gears, traction electric motors; reducers driving gear; coupling; wheel pair tread, and also, spring units), electrical equipment of power and auxiliary circuits (traction electric engines, starter-arrestor devices, transducers, generators, compressors); the equipment of the air brake system, the control circuit of traction electric motors and auxiliary equipment.

In May 2012, the diagnostic network, allowing quick access to the information about the health of EMU-trains, equipped with COMPACS®-EXPRESS-3 systems, and displaying the received data on the work station of the personnel in charge: technologist, shift foreman, general foreman, was integrated at the depot.

Thus, since September 2012, the information about the unacceptable growth of the vibration-diagnostic characteristics of two traction electric motors has regularly received to the diagnostic network from the on-board system, fixed on the ED4M-0381 EMU-train (vide Appendix 1). The given information was immediately reported to the personnel in charge in the form of a technical condition report, for instance, the report № 7674 from 09.11.2012 with the message "Check TED" (vide Appendix 2) and with the recommendations such as "Diagnose the wheel-motor block" for the motor of the 3rd wheel pair, "Revise the bearing assemblies" for the engine of the 4th wheel pair of 038106 motor coach (vide Appendix 3). On the 17th of November, 2012, the motors with an unacceptable level of vibration were replaced. The vibration level sharply decreased to a normal after replacing the motors.

The on-board monitoring system together with the diagnostic network is a reliable source of information about the equipment condition of the rolling stock and powerful means of ensuring the safety of suburban passenger transportation on the Oktyabrskaya railway.

 

Authors: Deputy Chief in the field of repair A.V. Orlov, technologist P.A. Bazhanov / 2013

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Tags: condition monitoring diagnostics electric multiple unit COMPACS-EXPRESS-3 Date: 01.03.2014
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