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PermaGasSprings
Adjust stiffness and damping coefficients
Function
They are non-leak in the long term (internationally patented devices). They are typically filled with thick liquid rubber and gas (nitrogen), and configured as springs or spring & damper systems.
Passive configuration (tuned)
- Adjust height/preload: Increase/decrease volume of the thick liquid rubber and pressure of the gas (nitrogen).
- Adjust stiffness coefficient: Change the proportion between the thick liquid rubber and the gas (e.g. by adding/bleeding liquid rubber).
- Adjust damping coefficient: Change the orifice area of the valve (by adjusting the setting of the valve). Damping is generated by the turbulent flow behind the orifice.
Active configuration
The settings of the liquid rubber volume and the orifice area, are adjusted in real time by an adaptive AI-driven (learning based) control system, which leverages the feedback of appropriately installed sensors to maximize efficiency.
Such systems may be:
- Semi-active (damping coefficient variable) through real-time adjusting the orifice area of the proportional valve;
- Fully active (both damping & stiffness coefficients variable) through real-time adjusting both the orifice area of the proportional valve and the volume of the thick liquid rubber (by using a pump-valve unit).
Standard sizes
Standard sizes (adjacent table) are for steel with yield strength 350 MPa. For lighter configurations higher strength steel may be used. The maximum service load is in accordance with the European Standards.
Custom
Custom sizes can be built to suit your application.
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