Mécanique

Vibration - Vibration and temperatures tests 

Our laboratory is equipped with climatic rooms that can be adjusted on vibration shakers to realise your combined tests.

Expertise

• Harsh environment chamber
  • From -60°C to +250°C
  • Maximum Volume: 500x500x600
• Controlled temperature chamber
  • From -40°C to +150°C
  • Volume: 1m3 1x1x1m

Means

• LDS and ETS Electrodynamic shaker
  • Frequency range: from 3 to 3000 Hz
  • Table size:900 x 900 mm
  • Force: 28 000 N, 40 000 N  and 60 000 N
  • Frequency range: from 3 to 3000 Hz
  • Maximum acceleration: 100g
  • M+P piloting acquisition chain

Vibration - Vibratory testing

Integrating vibration phenomenon in the qualification requirements concerns gradually all industrial sectors. Equipment can be integrated in a vehicle (car, plane , train, ship,...), can be used in an environement reverberating vibrations (industrial equipment, nearby rolling system,...) or can be carried (consumer or professional products when marketed).

Our laboratory offers you the expertise of its team and its means in vibration (vibration shaker, ...)

Expertise

• Research of proper frequencies with curves of transmissibility
• Endurance
• Analysis of testing results
• Give solutions for problems encountered
• Study and realization of adaptation tooling for vibration generators
• Possible tests: Sine, random, shocks, SRS, Sine on random, broad on random, ...
• Standards: NF EN 60068, MIL-STD, DO160, DEF-STAN, STANAG, ...

Means

• ETS Electrodynamic shaker
  • Table size: 900 x 900 mm
  • Maximum force: 60 000 N
  • Stroke: 2,5 inches (63,5 mm) peak
  • Frequency range: 0.1 Hz to 3000 Hz
  • Maximum mass up to 700 kg
  • M+P piloting acquisition chain

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• ETS Electrodynamic shaker
  • Table size: 500 x 500 mm
  • Maximum force: 40 000 N
  • Stroke: 2 inches (50,8 mm) peak
  • Frequency range: 0.1 Hz to 3000 Hz
  • Maximum mass up to 500 kg
  • M+P piloting acquisition chain

• 2 LSD Electrodynamic shaker
  • Shaker: LDS 826
  • Force: 28000 N and 9000 N
  • Table size: 900 x 900 mm
  • Frequency range: from 3 to 3000 Hz
  • Maximum acceleration: 100 g
  • M+P piloting acquisition chain

Our means can also be used to realise test combining vibration and thermal constraints.

Mechanical shocks

Wether accidental (impacts), predictable (handling) or anticipated in the life profile of an equipment (landing shocks, pyroshocks,...), mechanical shocks are an integral part of the usage environment of the equipment.

They are naturally integrated to many specifications.

Expertise

• Achieving usual shocks (demi-sinus,  sawtooth, …)
• Simulating pyroshocks and seismic spectrum
• Accelerometric measurements can be realised
• Possibility to realise "on demand" shocks with different duration and amplitude
• Analysing results
• May give advices in case of problem encountered
• Writting testing report

Means

• Shock machine MTS 845
  • Table dimension 1m x 1m
  • Wave forms Formes d'ondes semi sinusoidal and trapezoidal
  • Amplitude : 5 to 600g
  • Shock duration 0,2 ms to 50 ms
  • Acquisition chain HP
  • Working load limit 500 kg
• Pyroshock machine
  • Drive free fall
  • Stimulation principle by pendulum system
  • SRS (Shock Response Spectrum) generation pyroschock type

Handling drop

During handling, the most important mechanical damages are suffered by packaging.

• Achieving test at different height.
• Acquisition system for accelerometer measurements.