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Compressed Air Systems
Published in Stephen A. Roosa, Steve Doty, Wayne C. Turner, Energy Management Handbook, 2020
Pneumatic cylinders use compressed air to drive a piston rod for linear motion in industrial processes. This linear motion has applications in robotics, conveyance of parts, stamping presses, and lifting of heavy objects such as forging hammers. Compressed air delivered to a cylinder is controlled by an upstream solenoid valve that opens and closes to direct air. The two most common types of pneumatic cylinders are single-acting and double-acting cylinders. A single-acting cylinder is equipped with a spring that forces the piston back to its original position after each stroke. A double-acting cylinder has two air ports, one on each side of the piston head, which alternate in-flow status to drive the piston back and forth. Figure 22-2 diagrams a double-acting cylinder and its outstroke and instroke positions.
Prototyping of automated systems
Published in Fuewen Frank Liou, Rapid Prototyping and Engineering Applications, 2019
Pneumatic cylinders as shown in Figure 8.2 are generally chosen for low-load applications in places where piping can convey air pressure around a building. As the typical shop air is about 80–100 psi, the force exerted from an air cylinder is the cross section of cylinder times the air pressure. It is commonly used for applications in which the required force is less than 200 lbs. The advantages of pneumatic cylinders include their small size and weight, low cost (around $20 to ~$50), and good reliability. The disadvantages include the need of an air supply, possible water leakage, delay time (when the line is over 2 ft), and uneven motion.
Development of a reconfigurable fixture for low weight machining operations
Published in Cogent Engineering, 2019
I. A. Daniyan, A. O. Adeodu, B. I. Oladapo, O. L. Daniyan, O. R. Ajetomobi
The aim of this work is to develop a reconfigurable fixture with pneumatic controls for positioning work for accurate operations while the objectives are to; design a reconfigured fixture using pneumatic controls, fabricate the designed fixture and carry out performance as well as the stress analysis of the fixture. The target is to explore the merits of pneumatic cylinders such as speed, effective control, reliability and precision to reduce cost, increase flexibility, productivity, and accuracy during clamping operations of low weight workpiece.
Presentation of textile pneumatic muscle prototypes applied in an upper limb active suit experimental model
Published in The Journal of The Textile Institute, 2018
Guido Belforte, Gabriella Eula, Alexandre Ivanov, Terenziano Raparelli, Silvia Sirolli
In comparison with other pneumatic cylinders, they have the following advantages: a good power-weight ratio; a passive damping effect; the possibility of working in rough environments; the absence of rigid structures; an ergonomic design (Panizzolo et al., 2016; Wehner et al., 2013).