Viscoelastic technology

THE TECHNOLOGY

The shock absorbers are designed on the principal of hydrostatic compression of viscous elastic fluids.

Two main fundamental properties are used: COMPRESSIBILITY and VISCOSITY.

The compressibility and the viscosity of our fluids allow in a same device to obtain both functions, the

one of a shock absorber and the one of a spring, without the need of any additional re-arming 

mechanism (gas or mechanical spring). The two functions can be used separately or in combination, in the same product.

Compressibility

Preload spring function or spring function only
 
=> F = F0 + KX
  • Hysteresis between 3 and 10%
  • Reduced weight and space requirement
  • Force/Stroke characteristics is independent of speed
  • Reset time between 1/100e sec and 1/10e sec

Viscosity

Preload shock absorber or combined spring and shock absorber 
 
=> F = F0 + KX + CVα

with α between 0.1 and 0.2

 

  • Dissipate of energy between 30% and 100% 
  • Constant characteristics between entre -10° et +50° C
  • Low maintenance
These two functions can be used separately or in combination, in the same product
Shock absorber function without return or shock absorber function only
 
=> F = CVα

with α between 0.1 and 0.2

• Dampening device

The important advantages of our technology 

  • Our solution is 100% recyclable
  • The Elastomer is based on silica (sand) and does not pollute the ecosystem
  • Simple  & smaller design – High reliability
  • Low mass & weight
  • Simple integration (with various solutions for the fixation)
  • Fully autonomous (no additional device) – self repositionable
  • Dissipate of energy between 30% and 100%
  • High damping coefficient, low sensitivity to temperature and speed variances (constant characteristics between -20° and +50°C)
  • Quick reset time
  • No maintenance nor inspection, no leakages due to the high viscosity
  • Serenity and less costs
  • The viscosity is : 10 millions to 25 millions Cst
  • A device is calculated for a speed (V), if due to an emergency situation the impact doubles the speed (V) => the force only increases of 15%
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