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In this paper, the dynamics of hydraulic servo system is analyzed and a sliding mode controller with RBF neural network compensation is presented for the force tracking issue of electrohydraulic servo system.
In order to realize steering either manually or automatically, a direction proportional electrohydraulic valve is installed in parallel with the existing hand pump.
Clinical comparison of extracorporeal piezoelectric lithotripsy (EPL) and intracorporeal electrohydraulic lithotripsy (EHL) in difficult bile duct stones.
It is worth mentioning that fast response time and tracking performance are the two primary requirements in electrohydraulic actuator control problem, especially for the subsea electrohydraulic actuator control systems; the control of such systems may become difficult and complicated due to two facts:
A high-strain rate during the EHF process is achieved by taking advantage of the electrohydraulic effect, which can be described as the rapid discharge of electric current between electrodes tips while being submerged in liquid-filled chambers and the propagation through the liquid of the resulting shockwave and reflective wave.
The new facility adds 75,000 sq ft of manufacturing capacity, meaning the firm can meet demand for electrohydraulic cartridge valves and other products for the European market.
It is said to bring with it an enviable reputation for delivering innovative solutions for a wide range of applications, including control systems for pneumatic and hydraulic control valves, electro-pneumatic and electrohydraulic actuators, local control panels, manifolds and components such as solenoid valves, level controls, gas detection and fire-fighting equipment.
In depth analysis is provided for the types of actuators - electromechanical, electrohydraulic, pneumatic, hydraulic, and mechanical.
The damping effect is achieved by means of an electrohydraulic proportional throttle valve, and is therefore continuously adjustable.
In sections on magnetics, actuators, sensors, and sensors he explains such aspects as basic electromagnetics, the reluctance method, magnetic force, magnetic actuators operated in turn by direct and alternative current, the Hall effect and magnetoresistance sensors, coil design and temperature calculations, electromechanical finite elements, and coupled electrohydraulic analysis using systems models.
Electrohydraulic actuators may have difficulties when working in hostile environments because of a more complicated design and operation of the system.