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Mechanical and Climatic Calibration and Testing Laboratory


C. Tests to verify the shock and vibration resistance of electromechanical equipment

Within the Mechanical and Climate Testing Laboratory, LIMC-Softronic performs shock and vibration tests of electromechanical, pneumatic, electrical and electronic equipment to be fitted to railway vehicles, in accordance with the provisions of the regulations in the field, or, at the request of the beneficiary, in accordance with the actual requirements of the installation site.

Reference documents:

  • SR EN 61373: 2011 – Railway applications. Rolling stock equipment. Shock and vibration tests;

  • EN 60068-2-57:2013 – Environmental testing – Part 2-57: Tests – Test Ff: Vibration. Time-history and sine-beat method;

  • EN 60068-2-64:1995 – Environmental testing – Part 2: Test methods – Test Fh: Vibration, broad-band random (digital control) and guidance;

  • EN 60068-2-6:2008 – Environmental testing – Part 2-6: Tests – Test Fc: Vibration (sinusoidal);

  • EN 60068-2-47:2005 – Environmental testing – Part 2-47: Tests – Mounting of specimens for vibration, impact and similar dynamic tests;

  • EN 60068-3-8:2003 – Environmental testing – Part 3-8: Supporting documentation and guidance – Selecting amongst vibration tests;

  • EN 60068-2-27:2009 – Environmental testing – Part 2-27: Tests – Test Ea and guidance: Shock;

  • OMT 410:1999, on the authorization of testing laboratories and testing of special stands and devices for the verification and testing of railway equipment used in the construction, modernization, operation, maintenance and repair of railway infrastructure and rolling stock, specific to rail and subway transport;

  • SR EN ISO/CEI 17025:2005 – General requirements for the competence of testing and calibration laboratories;

  • EA-4/02 M: 2013 – Evaluation of the Uncertainty of Measurement in Calibration.


Description of the shock and vibration test system:

The shock and vibration test system consists of the following components: the electrodynamic vibrator ET-10-240; extension surface (vertical) of test surface HE500; power amplifier; vibrator cooling fan; controller that includes the control accelerometer and programs for generating different test profiles: self / random / shock.

ET-10-240 electrodynamic vibrator, sine force (peak) 10 kN; random force (rms) 10 kN; shock force 20 kN; frequency range 5 - 3000 Hz; maximum displacement (p-p) 51 mm; maximum speed 1.8 m / s; maximum acceleration 1000 m / s2; armature resonance 2500 Hz; maximum test mass 300 kg; reinforcement diameter 240 mm.

SDA-10 power amplifier, rated output capacity 10 kVA; 90% amplifier efficiency.

B-1000 blower, max. 4 kW; air flow min. 0.33 m3 / s; air pressure 3.5 kpa.

Vibration controller, is designed to generate the main types of test profiles: self / random / shock. The software allows the visualization, monitoring, storage and analysis of vibrations and parameters. Main technical characteristics: frequency range: DC 0 ~ 5,000 Hz; resolution: max3200 lines; maximum input voltage: ± 10 V; inputs: 2, amplifier output: 1; test profiles: self / random / shock / RSTD.

For the mechanical stress test in accordance with the operating requirements, the following equipment shall be added:

  • LAN-XI 3160 A-042 data acquisition system, Bruel & Kjaer, 4 input channels, 56 kHz, 24bit, 2 analog output channels, 56 kHz, 24bit;

  • LV 103 power preamplifier, 100W power, 3Hz-10Hz frequency range;

  • PulseReflex, Bruel & Kjaer, software for post-processing and generating analog signals from recorded data files.

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