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Vibrations, shocks and constant acceleration

Vibration tests are among the set of environmental tests that contribute to evaluating the reliability, resistance and accelerated aging of industrial products used in multiple sectors, including auto manufacturing, energy and aerospace. These tests serve to assess the mechanical behavior of products under both normal and severe operating conditions. They successfully incorporate into a comprehensive qualification and characterization program the set of equipment ancillary to testing conducted on electromagnetic compatibility, climate, electricity, etc...

Proposed services

Among our various services, we are able to propose a battery of COFRAC-certified tests or custom tests, including :

  • Random vibration tests (COFRAC),
  • Sinusoidal vibration tests (COFRAC),
  • Combined vibration tests (sine wave/noise, noise/noise, etc.),
  • Combined climatic vibration tests (hot, cold, humidity) (COFRAC),
  • Shock tests (half-sine wave, trapezoidal, SRC, etc.) (COFRAC),
  • Constant acceleration tests,
  • Advice, expert appraisals and guidance.

Resources available

To satisfy these testing needs, the LNE Laboratory features the following set of instruments :

- In the aim of consolidating resources (without citing the details of each client) and in providing the performance ranges for each family.

 

Instrumentation Specifications Instrumentation use
Vibrators
  • Frequency range: 3 - 2,000 Hz
  • Peak-to-peak displacement: 50 to 75 mm
  • Speed: 1.8 m/s max
  • Force: 27 to 80 kN
  • Load compensation: 300 to 800 kg
Vibrations
Hydraulic jack
  • Frequency range :
    0,1 - 300 HZ
  • Peak-to-peak displacement :
    100 mm max
  • Speed :
    0,4 m/s max
  • Force :
    80 kN
  • Load compensation :
    2 000 kg
Vibrations
Climate chambers
  • • Temperature range :
    -70 to 150 °C
  • • Temperature variation :
    10°C/min
  • • Relative humidity :
    10 to 95 RH
  • • Volume :
    0,8 to 1 m3
Enables combining
vibrational and climate tests
Shock table
  • Acceleration :
    500 g max
  • Load :
    200 kg max
  • Minimum shock duration :
    2 ms
Shocks
Centrifuge
  • Acceleration :
    100 g max
  • On-board load :
    2 x 50kg max
  • Speed :
    300 revolutions/min max
Constant acceleration

 

Applicable regulations

The proposed set of tests are capable of satisfying many standards, notably :

  • NF EN 60068-2-xx,
  • CEI 60068-2-xx,
  • ETS 300 019-2-xx,
  • RTCA DO 160,
  • GAM EG 13,
  • MIL STD 810,
  • EN 61373,
  • STANAG 2895 and 4370,
  • EUROCAE ED-14,
  • ISTA,
  • Custom client specifications.

...

Products covered

All products, including: aeronautical actuators, measurement devices, electrical control cabinets, and portable electro-medical devices.

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