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PermaGasSprings
With adjustable stiffness and damping coefficients
Function
They are leak-free 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)
- Adjustable height/preload: by varying the volume of the thick liquid rubber and/or the pressure of the nitrogen gas.
- Adjustable stiffness coefficient: by varying the proportion of the thick liquid rubber relative to the nitrogen gas.
- Adjustable damping coefficient: by varying the valve setting; damping is generated by turbulent flow behind the valve orifice.
Active configuration
Liquid rubber volume and orifice area, are adjusted in real time to maximize efficiency, by an AI-driven (learning based) adaptive control system, which leverages feedback from strategically installed sensors.
Typical configurations:
- Semi-active: damping coefficient is variable through real-time adjustment of the orifice area, e.g., using a proportional valve.
- Fully active: stiffness and/or damping are adjusted in real time by varying the thick liquid rubber volume (e.g., using a pump-valve unit).
Standard sizes
Standard sizes (see adjacent table) are based on steel with a yield strength of 350 MPa. For lighter configurations higher strength steel may be used. The maximum service load complies with European standards.
Custom
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Custom sizes can be manufactured to meet your application requirements.
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