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Active pneumatic vibration isolation system (APVIS) is widely used in IC equipments and high precision metrology devices. Proportional spool valves are normally used as its actuator. However, it exhibits strong non-Linearity, such as dead zone and stick-sLip effect, which results in flux fluctuation, to greatly degrade the vibration isolation performance. In this paper, a dynamic model for air spring...
The damping of a common cabin of a commercial vehicle is realized with hydraulic based dampers integrated inside the air springs of the suspension. For the suspension proposed in this paper, the damping forces are generated by varying the mass of air inside the air spring volume. To achieve a high bandwidth of vibration suppression, the mass flow of compressed air is controlled using fast switching...
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