Mechanical resistance tests 

Resistance tests of products exposed to linear acceleration, vibrations, shocks, including combined environmental trials. 

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CONTACT

Ing. Miroslav Valeš
Head of Testing laboratories, VZLÚ 
Tel: +420 225 115 267 / 332
fax: +420 225 115 430
e-mail: m.vales@vzlu.cz

Ing. Richard Vilikus
Tel: +420 225 115 190 / 332
fax: +420 225 115 430
e-mail: vilikus@vzlu.cz


Mechanical resistance tests
WE OFFER:
Products´ resistance tests for linear acceleration, vibration, shocks, including combine load with climatic effects:
  • Vibration tests
  • Resonance determination
  • Shocks
  • Accident safety
  • Combined tests (vibration, shocks, temperature, humidity)
  • Linear acceleration

EQUIPMENT (selection):
  • Electrodynamic vibration and shock device LDS V890-LPT900 COMBO (max. static load up to 700 kg, frequency range 1 – 2,300 Hz, peak force at sinusoidal vibration 53.4 kN, RMS force at random vibration 55.6 kN, peak force at half-sinusoidal shock 166.8 kN, max. deviation amplitude 25.4 mm, speed 1.6 m.s-1, acceleration 392 m.s-2, scattered magnetic field < 2.0mT)
  • Electrodynamic vibration and shock device TIRA S597/LS-340 (max. static load 610 kg, frequency range DC – 3,000 Hz, peak force at vibration 35 kN, at shock 70 kN, max. deviation amplitude 25.4 mm, max. velocity amplitude at vibration 1.8 m.s-1, at shock 2.5 m.s-1, max. acceleration amplitude 110 g, at shock 220g)
  • Electrodynamic vibration and shock device LDS V850-440 HBT600 COMBO (max. weight of the specimen under test 350 kg, usable frequency range 1 – 3000 Hz, peak sine force 22,2 kN, max. RMS random force 22,2 kN, peak shock force 66,7 kN, max.velocity 2 m.s-1, max. acceleration 600 m.s-2)
  • Climatic chamber CTS (-70 to 180 deg C, relative humidity 10 to 95 %, temperature variation rate 2 K.min-1, dimensions (width x height x depth) 1200 x 1050 x 1100 mm, two openings for cables 12 cm dia, max. bottom load 150 kg.m-2
  • Temperature chamber Vötsch VTV 7060-5 (temperature -70 to 180°C, temperature change rate 5 K.min-1, -dimensions (w/l/h) 800×950×800 mm, -holes for cabling, diameter 12cm)
  • Vibration control systems SD 2552B (8 inputs for vibration control and test monitoring) and VR8500 and VR8500-8 (4 and 8 inputs for test control and monitoring)
  • SMK1 centrifuge (mass of article tested max. 50 kg, its max. dimensions 500 x 500 x 500 mm, acceleration range 0.5 – 25g)
Standards (most frequent types of tests):

ČSN EN 50125-1   Railway applications - Environmental conditions for equipment - Part 1: Equipment on board rolling stock

ČSN EN 50155
Railway applications - Electronic equipment used on rolling stock

ČSN EN 60068-2-6
Environmental testing - Part 2: Tests Fc: Vibration (sinusoidal)
ČSN IEC 68-2-7 Elektrotechnical and elektronic products.
ČSN EN 60068-2-27 Basic environmental testing procedures. Part 2: Tests. Test Ea and quidance: Shock
ČSN EN 60068-2-29 Basic environmental testing procedures. Part 2: Tests. Test Eb and guidance: Bump
ČSN EN 60068-2-47 Environmental testing - Part 2-47: Tests - Mounting of specimens for vibration, impact and similar dynamic tests
ČSN IEC 68-2-50 Basic environmental testing procedures - Part 2: Tests - Tests Z/AFc: Combined cold/vibration (sinusoidal) tests for both heat-diddipating and non-heat-dissipating specimens
ČSN IEC 68-2-51 Basic environmental testing procedures - Part 2: Tests - Tests Z/BFc: Combined dry heat/vibration (sinusoidal) tests for both heat-dissipating and non-heat-dissipating specimens
ČSN IEC 68-2-53 Basic environmental testing procedures - Part 2: Tests - Guidance to Tests Z/AFc and Z/BFc: Combined temperature (cold and dry heat) and vibration (sinusoidal) tests
ČSN EN 60068-2-57 Environmental testing - Part 2-57: Tests - Test Ff: Vibration - Time-history method
ČSN EN 60068-2-59 Environmental testing. Part 2: Test methods - Test Fe: Vibration - Sine-beat method
ČSN EN 60068-2-64 Environmental testing. Part 2: Test methods. Test Fh: Vibration, broad-band random (digital control) and guidance
ČSN EN 61373 Railway applications - Rolling stock equipment - Shock and vibration tests
RTCA/DO-160 Environmental Conditions and Test.Procedures for Airborne Equipment
MIL-STD-810 Environmental Engineering Considerations and Laboratoty Tests
VW 80101 Electrical and Electronic Assemblies in Motor Vehicles. General Test Conditions


CUSTOMERS:
  • Tests for aviation and non-aviation sectors, particularly for the car industry 
  • Rolling stock 
  • Electronics and electrical engineering manufacturers 
  • Space industry 
  • Aviation engineering operators 
  • Test on hydraulics elements and circuits 
  • LPG and CNG fuel systems tests