Relevant bibliographies by topics / Double-acting pneumatic piston

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  1. Journal articles
  2. Dissertations / Theses
  3. Conference papers

Academic literature on the topic 'Double-acting pneumatic piston'

Author: Grafiati
Published: 28 June 2021
Last updated: 6 February 2022

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Journal articles on the topic "Double-acting pneumatic piston"

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Czmerk, András J. "Increasing of Stiffness of Double-Acting Pneumatic Cylinder." Analecta Technica Szegedinensia 9, no. 1 (January 12, 2015): 39–45. http://dx.doi.org/10.14232/analecta.2015.1.39-45.

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Position keeping properties of actuators depend highly on their stiffness. The low stiffness of pneumatic systems is well known, which is disadvantageous during positioning and when a position has to be kept. It is one of the reasons why hydraulic systems have advantages over pneumatic systems when it comes to positioning tasks. This paper deals with the analysis of the passive stiffness of a double-acting cylinder. The stiffness of pneumatic cylinders is derived as a function of chamber pressures determined by the bulk modulus of pneumatic systems. The stiffness of a passive system of the chambers is written by the pressure change through small displacement of the piston and as a result of the restoring force. In case of the passive system the effect of the valve actuation is neglected. From the deduction it is clear that the stiffness of a cylinder changes along the stroke, dead volumes at the end positions play a relatively important role. The results are compared with the restoring forces of the piston seals and other sealing elements in the stiction region. The restoring effects of the elastic elements were determined by measurements.
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Ding, Wei Ya, Xue Wu Hu, and Xiao Ming Sheng. "Double-Acting Air-Oil Intensifier Driven by Twin Roller Piston Air Cylinder." Applied Mechanics and Materials 220-223 (November 2012): 580–84. http://dx.doi.org/10.4028/www.scientific.net/amm.220-223.580.

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The double-acting air-oil intensifier designed in this paper can continuously output high pressure oil which meets the requirements of equipment that is high-pressure and with recirculation motion and it is driven by pneumatic substituting the independent hydraulic power source driven by electric motor. It consists of twin roller piston air cylinder, force amplifier, hydraulic cylinder and oil supercharger. The piston of air cylinder propelled by pressure gas makes cyclic motion and the driving force of piston increased by force amplifier pushes the piston of hydraulic cylinder and forces out hydraulic oil, then oil is input to the system after the second time when pressure amplification by oil superchargers. It has many advantages such as higher pressure ratio, compact structure, high efficiency, low cost and easy access to regulate pressure and flow rate.
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Li, Bin, Song Guo, Wei Li, Deman Zhang, and Nei Wang. "Characteristics Analysis and Modelling of a Pneumatic Underwater Launching System." MATEC Web of Conferences 232 (2018): 02005. http://dx.doi.org/10.1051/matecconf/201823202005.

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Comprehensive characteristics of a pneumatic underwater launching system were analyzed and the simulation was carried out by simulink. The components of the pneumatic underwater launching system were introduced, and the theoretical calculation formula for the system was derived. A rated pressure of 3.5MPa and 5MPa was offered in the numerical work. Analyses in different piston height show good behaviors: Proper increase of piston-initial accumulator pressure is beneficial to reduce hydrodynamic noise, choose the appropriate pressure of accumulator. The hydrodynamic noise of the system can be significantly reduced by optimizing the structure of the double-acting cylinder, increasing the height of the piston and improving the structure of the piston.
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Wang, Ming Di, Li Ning Sun, and Kang Min Zhong. "Double-Acting Pneumatic-Hydraulic Pressure Amplifier Having Two-Step Liquid Pressure Output Pressure Driven by Pneumatic Cylinder with Rodless Piston." Applied Mechanics and Materials 607 (July 2014): 467–71. http://dx.doi.org/10.4028/www.scientific.net/amm.607.467.

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The working principle of a new kind of double-acting pneumatic-hydraulic pressure amplifier having two-step output pressure driven by the pneumatic cylinder with rodless piston is introduced. The output flux and the output pressure calculating formulae are also given out. Compared with the known single-acting pressure amplifier,the innovative pressure-amplifier is simple in structure and has much higher working efficiency. It can also output adaptive two-step liquid pressure, which is similar with the hydraulic differential connection, thus it is easy to realize move quickly in low pressure and move slowly at high pressure. This system also fits a trend of green manufacturing for using green air as transmission medium and with closed oil without leak to output pressure liquid.
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5

Grgić, Ivan, Vjekoslav Wertheimer, Mirko Karakašić, and Željko Ivandić. "Development of a 3D Printed Double-Acting Linear Pneumatic Actuator for the Tendon Gripping." Polymers 13, no. 15 (July 30, 2021): 2528. http://dx.doi.org/10.3390/polym13152528.

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The lack of standardization in tissue testing procedures results in a variety of custom-made devices. In the case of the determination of the mechanical properties of tendons, it is sometimes necessary to adapt the existing laboratory equipment for conducting experiments when specific commercial equipment is not applicable to solve issues such as proper gripping to prevent tendon slipping and rupturing, gripping control and manoeuvrability in case of tendon submerging and without contamination of the testing liquid. This paper presents the systematic development, design, and fabrication using 3D printing technology and the application of the double-acting linear pneumatic actuator to overcome such issues. It is designed to do its work submerged in the Ringers’ solution while gripping the tendon along with the clamps. The pneumatic foot valve unit of the Shimadzu AGS-X tensile testing machine controls the actuator thus preventing Ringers’ solution to be contaminated by the machine operator during specimen set-up. The actuator has a length of 60 mm, a bore of 50 mm, and a stroke length of 20 mm. It is designed to operate with an inlet pressure of up to 0.8 MPa. It comprises the cylinder body with the integrated thread, the piston, the piston head, and the gripper jaw. Fused deposition modeling (FDM) has been used as the 3D printing technique, along with polylactic acid (PLA) as the material for 3D printing. The 3D printed double-acting linear pneumatic actuator was developed into an operating prototype. This study could open new frontiers in the field of tissue testing and the development of similar specialized devices for medical purposes.
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Kumar, Ravi, and Jay Robert B. del Rosario. "Design and Simulation of Electro-Pneumatic Motion Sequence Control Using FluidSim." Applied Mechanics and Materials 446-447 (November 2013): 1146–50. http://dx.doi.org/10.4028/www.scientific.net/amm.446-447.1146.

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Applying the principles of electro-pneumatics (EP) in food and beverage industries with the integration of timer and counter in a motion sequence control. Double acting cylinders are utilized in this study that will properly simulate the effect of different electro-pneumatics control systems. Forward motion sequence control directed the entire EP circuits and piston rod’s operation speed are controlled. The sensing information of all linear actuators is carried out by limit switches or electrical rollers that sense whether an extension or retraction has occurred. This information is passed to different relays such as counter relay, relay with switch-off delay and relay with switch-on delay.
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7

Wilczyński, Dominik, Ireneusz Malujda, Jan Górecki, and Grzegorz Domek. "Experimental research on the process of cutting transport belts." MATEC Web of Conferences 254 (2019): 05014. http://dx.doi.org/10.1051/matecconf/201925405014.

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The work presents the construction of a device designed to perform the cross-cutting process of conveyor belts. The device is equipped, among others, with a pneumatic drive in the form of a double acting piston rod. This actuator ensures reciprocating movement of the knife. The paper also presents the results of the pressure changes in the working chambers of the actuator as a function of displacement, recorded during the working movement of the knife which it performs during the cutting process. The tests were carried out in order to assess the level of pressures in the cylinder chambers during the cutting of belts of various constructions. These values were converted into cutting force values. It is important from the point of evaluation of changes in the value of cutting force of belts characterized by a different internal structure (composite belts made of different materials) and total thickness.
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8

Nall, Christian L., and Pranav A. Bhounsule. "A Miniature 3D Printed On-Off Linear Pneumatic Actuator and Its Demonstration into a Cartoon Character of a Hopping Lamp." Actuators 8, no. 4 (October 17, 2019): 72. http://dx.doi.org/10.3390/act8040072.

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Although 3D printing has been extensively used to create passive machines and mechanisms, 3D printing of actuators is a relatively new concept. 3D printing of actuators allows greater customization, accelerates the design and development, and consequently saves time and money. We present the design and fabrication of a 3D printed, miniature size, double-acting, On-Off type, linear pneumatic actuator. The actuator has an overall length of 8 cm, a bore size of 1.5 cm, and a stroke length of 2.0 cm. The overall weight is 12 gm and it generates a peak output power of 2 W when operating at an input air pressure of 40 psi ( 275 . 79 kPa). This paper demonstrates novel methods to solve the challenges that arise during fabrication that include: (1) chemical post-processing to achieve airtight sealing and a smooth surface finish, (2) strategic placement of a metallic part within 3D printed plastic for higher strength, (3) design of an airtight seal between the cylinder and piston head, (4) chemical bonding of printed parts using adhesive, and (5) use of a lubricant to reduce friction and improve force generation. The power-to-weight ratio of our actuator is comparable to that of high-end commercial actuators of similar size. The utility of the actuator is demonstrated in a series of jumping experiments with the actuator and by incorporating the actuator into a hopping robot inspired by Disney/Pixar Luxo lamp. We conclude that 3D printed pneumatic actuators combine the high power of pneumatics with the low weight of plastics, and structural strength through the selective placement of metal parts, thus offering a promising actuator for robotic applications.
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Dissertations / Theses on the topic "Double-acting pneumatic piston"

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Voronin, Artyom. "Možnosti prediktivní údržby pneumatických pístů." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2021. http://www.nusl.cz/ntk/nusl-444967.

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Tato práce se zabývá vytvořením simulačního modelu dvojčinného pneumatického pístu s mechanickou sestavou, včetně modelů snímačů, s následujícím odhadem parametrů a aproximací chování demonstračního zařízení. Dalším cílem je prezentace různých přístupů prediktivní údržby na datové sadě měřené na demonstračním zařízení. Na měřený datový soubor se aplikovaly signal-based techniky bez použití simulačního modelu a model-based metody, které vyžadují použití simulačního modelu. Výsledkem této práce je ověření možnosti monitorování stavu zařízení pomocí nainstalovaných senzorů a vyhodnocení efektivity senzorů z hlediska přesnosti a finančních nákladů.
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Conference papers on the topic "Double-acting pneumatic piston"

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Pitt, E. Bryn, Nabil Simaan, and Eric J. Barth. "An Investigation of Stiffness Modulation Limits in a Pneumatically Actuated Parallel Robot With Actuation Redundancy." In ASME/BATH 2015 Symposium on Fluid Power and Motion Control. American Society of Mechanical Engineers, 2015. http://dx.doi.org/10.1115/fpmc2015-9613.

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Actuation redundancy in parallel mechanisms has been predominantly investigated assuming electromechanical actuators. Pneumatic actuation offers new alternatives to achieving stiffness modulation in parallel robots. This paper investigates the limits of stiffness modulation using two alternatives: modulation of joint-level stiffness using antagonistic pneumatic actuators (passive stiffness modulation) and stiffness modulation using antagonistic actuation at the structure level (active stiffness modulation). A surrogate translational parallel robot architecture, which is a variant of the Delta robot with one redundant kinematic chain, is used in this investigation. A simplified model of a pneumatic double-acting piston actuator is used to establish upper and lower bounds for attainable joint-level stiffness. A kinematic model of the parallel robot is presented along with its passive and active stiffness models. A simulation study is carried out assuming attainable joint-level stiffness based on the simplified pneumatic actuator model. The simulations show that, due to the achievable low pneumatic actuator stiffness, the active stiffness contribution can be as high as 65% of the passive stiffness within the robot workspace. This preliminary investigation suggests that pneumatic actuators are uniquely suited for robot interaction tasks (e.g. assembly or rehabilitation) where stiffness control and modulation can offer increased safety and task-specific end-effector stiffness.
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