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Electro-hydraulic servo systems are used as actuators for positioning and force exertion in heavy-duty and relatively precise industrial applications. In addition, to achieve the best performance of the system, all of the components must work properly. These systems are often subjected to some problematic issues such as leakage, fluid property variation, and actuator seal damage. These problems are...
Servo-Pneumatic actuators introduce some advantages such as cleanliness, high specific power and actuating force with high performance, comparing to electrical and hydraulic actuators. Servo-Pneumatic actuators are employed in many applications such as non-invasive surgeries, and rehabilitation robotics. High friction in servo-pneumatic actuators, due to the cylinder tight sealing, results in low...
This paper deals with the position control of a servo-pneumatic system in presence of mismatched uncertainties. Pneumatic actuators are used in many industrial applications; such as haptic interfaces, mechatronic systems and robotics. Restriction of control effort, to apply directly on the mismatched uncertainties, causes problem to cope with these kinds of uncertainties. Nonlinearities due to internal...
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