Due to their high power-to-weight ratio and low cost, pneumatic actuators are attractive for robotics and automation applications; however, achieving fast and accurate control of their position have been known as a complex control problem. A methodology for obtaining high position accuracy with a linear pneumatic actuator is presented. During experimentation with a number of PID classical contr...

Dynamic modeling and control of the soft pneumatic actuators are challenging research. In this paper, a neural network based dynamic method used for actuator with symmetrical chambers is proposed. The introduced to create model predicting state actuator. model, effect uninflated rubber block on bending deformation considered. Both pressures during motion. controller designed trajectory tracking...

The future More Electric Aircraft (MEA) technology focus on increasing the use of electrical equipment to a larger extent, e.g. replacing conventional hydraulic and pneumatic actuators with electromechanical or electro hydrostatic actuators to reduce weight, cost and maintenance. Advances in enabling technologies of electric power generation, distribution, and utility equipment have made the us...

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This article presents a soft pneumatic bending actuator using a magnetically assisted bilayer composite composed of silicone polymer and ferromagnetic particles. Bilayer composites were fabricated by mixing ferromagnetic particles to a prepolymer state of silicone in a mold and asymmetrically distributed them by applying a strong non-uniform magnetic field to one side of the mold during the cur...

Pneumatic actuators afford advantages such as flexibility, low weight, and explosion-proofness. However, increasing the number of pressure supply tubes using solenoid valves in a multi-degree-of-freedom system may negate these advantages. Therefore, this study proposes soft actuator that uses self-excited vibrations realized by an airflow between two flexible plates to open close valve manner s...

This paper describes one method to attain a robust positioning control of pneumatic driving system comprising a pneumatic cylinder and PCM digital control valves. A pneumatic driving system has become one of interests in the industrial fields, however, the control characteristics are inevitably affected by the friction force and parameter changes of plant due to air compressibility. The control...

This paper presents an approach for dead zone compensation in pneumatic position servo systems. The dead zone is an inherent nonlinearity in pneumatic servovalves, where for a range of input control values, the valve gives no output flow. Although pneumatic actuators are very common in industry, they have limitations in servo pneumatic applications that are caused by typical non-linearities of ...