Relevant bibliographies by topics / Pneumatic linear drives

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  1. Journal articles
  2. Dissertations / Theses
  3. Book chapters
  4. Conference papers

Academic literature on the topic 'Pneumatic linear drives'

Author: Grafiati
Published: 4 June 2021
Last updated: 9 February 2022

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Journal articles on the topic "Pneumatic linear drives"

1

Chuanchao, Yan, and Zhao Wen. "The use of pneumatic cylinders with return springs when creating mechanical drives with recuperative energy." MATEC Web of Conferences 287 (2019): 01028. http://dx.doi.org/10.1051/matecconf/201928701028.

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The use of pneumatic cylinders with return springs in mechanical drives with reusable energy for reusable and continuum movements, fixing the output link in the extreme positions are considered. A defined range of work operations can be used by these cylinders. The use of pneumatic actuators with return springs in mechanical drives based on linear spring batteries with two springs is proposed. Algorithms for compensating dissipative losses in mechanical spring drives are considered. The maximum mass values that can be moved by such mechanical drives for each size of the pneumatic cylinder are determined. It is proposed to use pneumatic cylinders with return springs in mechanical drives with energy recovery based on nonlinear spring batteries. A mechanical spring drive for unwinding rolls of packaging materials with discrete modes. In tasks of reciprocating movement of objects with a controlled stand in extreme positions, the reduction of energy costs is achieved when using mechanical spring drives with energy recovery. Energy costs can be reduced several times. Traditionally, a spring-loaded drive contains a linear or non-linear spring-loaded battery, a control system, controlled clips and a motor to compensate for dissipative losses. The use of electric motors to compensate for dissipative losses is also limited by low speed, as compensation for dissipative losses occurs throughout the displacement and with high speed increases engine power and requires transmission with a large gear ratio.
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Kosaki, Takahiro, Yoshihiro Morinaga, and Manabu Sano. "Prototype Development of a Parallel-Link Robot Actuated by Pneumatic Linear Drives with Variable Inclination Mechanisms." International Journal of Automation Technology 8, no. 2 (March 5, 2014): 169–76. http://dx.doi.org/10.20965/ijat.2014.p0169.

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Parallel-link robots are generally high in power and precision because of their parallel arrangement of actuators. However, they have a workspace smaller than that of serial-link robots. In this paper, we develop a parallel-link robot prototype with pneumatic linear drives in which a mechanism for varying the actuator inclination is incorporated to enlarge the workspace. Our parallel-link robot realizes the rotational and translational motions of the end effector principally by means of the linear reciprocating motions of pneumatic linear drives mounted on the base. Auxiliary pneumatic actuators are used to adjust the inclination angles of those main pneumatic linear drives. The use of pneumatic actuators to realize the proposed parallel-link robot results in a lightweight, compact, and low-cost construction. The workspace and motion transmissibility of our parallel-link robot are analyzed through simulations based on kinematics; then, experimental investigations are carried out using the prototype.
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Zhao, Wen, and Victor Leonidovich Zhavner. "The use of pneumatic cylinders with a return spring to compensate for balance losses in mechanical regenerative drives for reciprocating movements." MATEC Web of Conferences 287 (2019): 01027. http://dx.doi.org/10.1051/matecconf/201928701027.

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Mechanical spring drives with energy recovery are designed to produce return-rotational movements in various technological equipment and reduce energy costs by several times compared with traditional electromechanical, hydraulic and pneumatic drives. The use of pneumatic motors in spring drives to compensate for dissipative losses, fixing the drive in extreme positions and the primary charging of spring batteries is considered. The class of tasks in which spring drives with energy recovery are created using only pneumatic cylinders with return springs is highlighted. This study examines mechanical spring drives with energy recovery, based on nonlinear spring batteries with spring preload in the middle position of the output link. The use of pneumatic actuators with return springs in mechanical drives based on linear spring batteries with two springs is proposed. Mechanical spring drives with energy recovery are designed to produce return-rotational movements in various technological equipment and reduce energy costs by several times compared with traditional electromechanical, hydraulic and pneumatic drives. The amount of energy expended in spring recuperative drives is actually determined by the energy expended on compensating for dissipative losses in kinematic pairs. The results of the study allow the designers of such drives to consciously approach the choice of their schemes and design parameters.
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Pu, J., and R. H. Weston. "Steady State Analysis of Pneumatic Servo Drives." Proceedings of the Institution of Mechanical Engineers, Part C: Mechanical Engineering Science 204, no. 6 (November 1990): 377–87. http://dx.doi.org/10.1243/pime_proc_1990_204_118_02.

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This paper introduces new approaches and design models aimed at determining the steady state behaviour of pneumatic servo drives. Relationships characterizing actuator velocity and chamber pressure with respect to valve displacement are established. Certain parameter ratios are defined and a novel analytical solution is offered, which may provide the basis of a better and more useful design methodology than conventional graphical methods. The observations and analysis are applicable to both linear (symmetric and asymmetric) and rotary drives controlled by either a single five-port servo valve or two independent three-port servo valves.
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Saravanakumar, D., and B. Mohan. "Fuzzy Based Control System for Interconnected Pneumatic Cylinder Linear Positioning System." Applied Mechanics and Materials 592-594 (July 2014): 2145–49. http://dx.doi.org/10.4028/www.scientific.net/amm.592-594.2145.

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Pneumatic drives have many advantages over other actuators in terms of efficiency and safety which enable them to be used in many applications. In the present study, a new method of position manipulator with two pneumatic cylinders which are interconnected has been presented. Nonlinear mathematical model of the system has been formulated. Using Matlab-Simulink software, the system has been simulated. Fuzzy based control system has been designed for the system. From the various responses and indices it is observed that the fuzzy based control system has better performance than PID based control system. Also it is observed that the system with fuzzy controller has better setpoint tracking characteristics.
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Efremova, K. D., and V. N. Pilgunov. "Pneumatic Automation Tools: Pneumatic Muscle." Mechanical Engineering and Computer Science, no. 10 (November 20, 2017): 36–56. http://dx.doi.org/10.24108/1017.0001315.

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The traditional actuating motor for pneumatic drives is a differential double-acting pneumatic cylinder used to create a pushing force that is significantly larger than the pulling force. The pneumatic muscle is a single-acting operating motor to be used for creating a pulling force. The pneumatic muscle is based on a cylindrical bladder (a thin two-dimensional elastic structure) property to change its shape or size upon applying overpressure of actuating medium to it.The paper objective is to present this new type of the actuating motor to a wide range of specialists in pneumatic automation. Using a bladder structure of the pneumatic muscle of the MAS family, company "FESTO" as an example, the paper considers a physical nature of its operation and defines a dependence of the force, developed by a pneumatic muscle in its internal cavity, on the overpressure value and the value of contraction. Describes an experimental setup to study static and dynamic characteristics of the pneumatic muscle, as well as a design of the loading and measuring device.The experimental study allowed us to obtain static and dynamic characteristics of the pneumatic muscle MAS 10-300: dependencies "force - contraction", "force - overpressure", and “contraction -overpressure". The averaged predicted value of the braid angle of impulsion of the cord thread for three sizes of the MAS family pneumatic muscle is determined according to German FESTO Product Catalogue to be 23 ... 25.5°.It is shown that the force curve of the pneumatic muscle is essentially nonlinear: the curve linearity is evident only when the pneumatic muscle contractions are, at most, 2% of its original length. Dynamic properties of the pneumatic muscle loaded with a constant force were evaluated through analysis of frequency characteristics: the operating frequency of the pneumatic muscle was f = 3 ... 6 Hz.The paper presents the reproducibility data of the force characteristic of a pneumatic muscle during its cyclic constant-value over-pressurisation p = 4 bar with a frequency f = 0.5 Hz.The researches have shown that with the cyclic over-pressurisation of the pneumatic muscle the force-value deviations from its averaged value are of systematic nature, depend on the number of loads, and so cannot be estimated by statistical characteristics. The paper considers an operating mode of the pneumatic muscle, as an extension spring, which is appropriate to the external force application to the pneumatic muscle to ensure return of the pneumatic muscle to the initial position after its contraction under over-pressurisation. An average value of the pneumatic spring stiffness is obtained from the force characteristic of the pneumatic muscle through its piecewise-linear approximation within the specified range of change in the contraction value. A comparative estimate of the forces developed by pneumatic muscles and pneumatic cylinders with equal working areas is given. It has been found that the pneumatic muscle contraction force exceeds the pulling force of the pneumatic cylinder, on average, 12 ... 14 times, but this advantage comes out only when the contractions of a pneumatic muscle are small. The usability of a short pneumatic muscle, as a control and loading device for the gates of hydraulic and pneumatic valve-type automation devices, has been investigated.
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Szíki, Gusztáv Áron, Attila Szántó, and Tamás Mankovits. "Dynamic modelling and simulation of a prototype race car in MATLAB/Simulink applying different types of electric motors." International Review of Applied Sciences and Engineering 12, no. 1 (March 20, 2021): 57–63. http://dx.doi.org/10.1556/1848.2020.00145.

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AbstractNowadays, vehicles with alternative drives are playing an increasingly important role in road transport. Among the various types of alternative-drives, the most widespread ones are hybrid and electric ones, thanks for the rapid development of modern batteries, and hybrid and electrical systems. The above fact establishes the importance of research on various types of electric motors. The Faculty of Engineering of the University of Debrecen has more than a decade of experience in developing prototype race cars with pneumatic and electric drive. For the more effective and conscious development and racing a simulation program has been developed in MATLAB/Simulink environment for the computation of the dynamic functions of a vehicle moving in a linear path. The program is characterized by a modular structure, so the different structural units (vehicle body, front and rear wheels, power train, motor) are modelled and simulated separately. In this study we present models and simulation programs for different electric motor types (series-wound DC and brushless DC motors) in MATLAB/Simulink and apply them in our vehicle dynamics simulation program. From the simulation results the performance of a vehicle – driven by an electric motor – can be predicted in a race situation, consequently the most suitable motor with the optimal characteristics can be selected to it.
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Посметьев, Viktor Posmetev, Канищев, Denis Kanishchev, Попиков, Petr Popikov, Стороженко, and Stanislav Storozhenko. "Modeling workflows of energy-saving hydraulic drive of technological equipment of timber-hauling machine." Forestry Engineering Journal 5, no. 1 (May 1, 2015): 223–34. http://dx.doi.org/10.12737/11280.

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Workflow mechanisms of forestry cranes tower rotation are accompanied by large dynamic loads that cause sudden changes in fluid pressure in balancing and braking modes. When the rotary column stops at different positions damping of pressure of the working fluid vibration occurs due to its overflow from one chamber to another through an orifice, wherein the hydraulic energy is transformed into heat one, resulting in overheating and energy loss of fluid. Efficient are energy-saving hydropneumatic drives of column of the manipulator which are able to recover energy during transient conditions and to return some of the energy back into the system. For hydraulic manipulators with four paired hydraulic cylinders of rotation mechanism of the column one pair of cylinders is proposed to be replaced by pneumatic cylinders connected to a rotary column through the gear and toothed rack that allows you to transfer it into recovery mode of energy. A mathematical model of the boom rotation of the manipulator is developed; equations for a hydro pneumatic system recovery are made. In the model three mechanical processes are considered: the rotational movement of the column about the vertical axis of the manipulator, the forward movement of the plunger along the axis of the damper, and sway of the load relative to the attachment point on the manipulator arm. To solve the system of differential equations, computer program for the simulation of hydraulic manipulator equipped with a hydraulic damper is composed. The dependence of the restoring force of the displacement of the toothed rack is get. In the vicinity of the equilibrium position, this dependence is nearly linear over a wide range of rack movement: from about 50 to 180 mm. With significant turns of the column volume of one of the chambers of the air cylinder approaches zero value, whereby the restoring force of the module increases significantly, which helps braking of the column in the final step of rotation and influences the process of energy accumulation.
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Masella, Piernicola, Lorenzo Guerrini, Alessandro Parenti, Fabio Baldi, and Paolo Spugnoli. "Performance of a driven hitch-cart for draft animal power under different power take-off torque and ballast levels condition." Journal of Agricultural Engineering 47, no. 4 (December 15, 2016): 230. http://dx.doi.org/10.4081/jae.2016.538.

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The performance of a two-wheel driven hitch-cart designed for draft animal power has been assessed. The cart fits a three-point linkage system and a ground-driven power take-off (PTO). Conventional pneumatic tires and metallic wheels have been tested in dedicated draft trials with increasing torque applied to PTO (7.0 to 70 Nm) at two ballast levels (100 and 200 kg). Draft force varies from a minimum of about 760 N (pneumatic tires and the lowest ballast), up to about 4480 N (metallic wheels and the highest ballast), with a linear increase as a function of the PTO applied torque. In term of global efficiency the better performances was achieved in different conditions. The metallic wheels deliver greater power to the PTO than pneumatic tires. Furthermore, they had global efficiencies higher than pneumatic for high power requirements, while the pneumatics perform better when the required power is low. Slippage rises as a function of increasing torque and decreasing ballast, with metallic wheels allowing delivery of greater PTO torque at the same slippage extent. The performances of the cart are consistent with the use of implements designed for small tractors.
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Zhang, Ming Zhe, Wei Wang, Dong Ning Su, Kang Min Zhong, and Zhi Ming Sui. "Mechanical-Electronic-Hydraulic Integration: Light Load Linear Reciprocating Motion Device Having Variable Frequency, Displacement and Velocity." Advanced Materials Research 279 (July 2011): 377–81. http://dx.doi.org/10.4028/www.scientific.net/amr.279.377.

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The light load linear reciprocating motion device driven by a small-size pneumatic cylinder is most economical, but its velocity and location precision is not good. When substituting the drive for small-size hydraulic cylinder, the significant shortcoming is environmental pollution. If the motion is achieved through rolling screw-nut mechanism driven by stepping motor, the space layout is very inconvenient. A light load linear reciprocating motion device integrating mechanical, electronic and hydraulic technology is designed. In this device, the motion is achieved through short-stroke rolling screw-nut mechanism driven by stepping motor, and then amplified by a splendid internal reflux area effect stroke amplifier. This device has the following noticeable advantages: (1) The location of output hydraulic cylinder is as convenient as common pneumatic or hydraulic cylinder. (2) The frequency, displacement and velocity of reciprocating motion can be altered convenient by programming. (3) Higher position precision. (4) The hydraulic fluid in the device is enclosed, so there is no environmental pollution causing by oil leakage and volatilization.
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Dissertations / Theses on the topic "Pneumatic linear drives"

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Pecl, Tomáš. "Hodnocení kvality pneumatických lineárních pohonů." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2015. http://www.nusl.cz/ntk/nusl-232129.

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This Master’s thesis deals with the evaluation of quality pneumatic linear drives. The theoretical part describes the problems in the field of pneumatic cylinders and statistical methods to perform the analysis. The practical part includes the execution and evaluation of the statistical analysis of the measurement process and pneumatic cylinders, also brings recommendations to optimize the measurement process. The methods used included analysis Gage R & R, Analysis control charts and data analysis using the process capability. The study was made for the purpose of improving test equipment Norgren Ltd. Used computer programs was Minitab Statistical Software and MS Excel.
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Turkseven, Melih. "Design and control of a pneumatically driven MRI-compatible tele-operated haptic interface." Diss., Georgia Institute of Technology, 2016. http://hdl.handle.net/1853/55022.

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This study presents methods for understanding, modeling and control of tele-operated pneumatic actuators for rehabilitation in Magnetic Resonance Imaging (MRI). Pneumatic actuators have excellent MRI-compatibility as opposed to conventional electro-mechanical systems; however, the actuator and the system drivers cannot be co-located due to the MRI-compatibility requirements. The actuators are driven via long transmission lines, which affect the system dynamics significantly. Methods provided in this work produced accurate pressure estimation and control by accounting for the pressure dynamics in the lines, which has been neglected by previous work in this area. The effectiveness of the presented modeling and control methods were demonstrated on tele-operation test setups. This research also includes the design of necessary system components for the developed algorithms. An MRI-compatible optical sensor was developed for force feedback and its design was analyzed for high precision. Directions and opportunities for future research are discussed.
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Soják, Vojtěch. "Konstrukce dvouosého manipulátoru." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2015. http://www.nusl.cz/ntk/nusl-231978.

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This master thesis deals with the design of a two-axis manipulator according to entered parameters. In the first chapter provides description of kinematics structures of industrial robots and manipulators and their workspaces. Next parts focus on search in the used components, producers of manipulators and of current design manipulators at JCEE s.r.o. Lanškroun. The practical part deals with the design and construction of custom manipulator and its price calculation.
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Novák, Aleš. "Návrh konstrukce zakladače k bezhroté brusce Jupiter 125." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2008. http://www.nusl.cz/ntk/nusl-228223.

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Thesis deal with proposal construction Chalder for centreless grinding machine Jupiter 125. Chalder is designed for workpiece with maximum average 12 mm, maximum longitude 120 mm and mass 0,1 kg. In the thesis are described components that were used at solving and intended time exchanges workpiece, the economics estimation and processed needed design documentation.
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Kohoutek, Petr. "Konstrukce univerzálního zařízení na dělení pneumatik." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2009. http://www.nusl.cz/ntk/nusl-228579.

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The main content of of this thesis is a construction design and analysis of a machine for cutting tires. The resulting solution emerges from the design options and the option that meets the best selection criteria is chosen. Then the thesis stops for a while at the choice of cutting technology and tries to exemine its suitability for cutting tires. In its other part there is an attempt to clarify the relevant parts of the machine, where the benefits of three-dimensional views is used. Basic design and check calculations are done in the selected machine parts.
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Book chapters on the topic "Pneumatic linear drives"

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Aschemann, Harald, and Dominik Schindele. "Sliding Mode Control for a High-Speed Linear Axis Driven by Pneumatic Muscles." In Advances in the Theory of Control, Signals and Systems with Physical Modeling, 31–40. Berlin, Heidelberg: Springer Berlin Heidelberg, 2010. http://dx.doi.org/10.1007/978-3-642-16135-3_3.

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Khaziev, E. L. "Control of Linear Servo Pneumatic Drive Based on Fuzzy Controller and Knowledge Base." In Lecture Notes in Electrical Engineering, 17–25. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-39225-3_3.

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"Non-Standard Linear Actuators." In Pneumatic Drives, 127–43. Berlin, Heidelberg: Springer Berlin Heidelberg, 2007. http://dx.doi.org/10.1007/978-3-540-69471-7_9.

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Conference papers on the topic "Pneumatic linear drives"

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OuYang, Liangjian, Miao Yang, Xiaolu Huang, Shuheng Qiu, Chi Zhang, and Kai Feng. "Design of a Pneumatic-Electric Hybrid Linear End-effector for Robot Polishing." In 2021 13th International Symposium on Linear Drives for Industry Applications (LDIA). IEEE, 2021. http://dx.doi.org/10.1109/ldia49489.2021.9505754.

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Merkelbach, Stephan, and Hubertus Murrenhoff. "Exergy Based Analysis of Pneumatic Air Saving Measures." In ASME/BATH 2015 Symposium on Fluid Power and Motion Control. American Society of Mechanical Engineers, 2015. http://dx.doi.org/10.1115/fpmc2015-9513.

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Pneumatic linear drives are widely used in manufacturing, mainly for handling tasks. Pneumatic drives are very versatile and reliable. They are easy to install and to maintain as well as economically priced. Due to rising interest in environmental matters and increasing energy costs, energy efficiency has become a major issue in industrial applications. There is a growing competition between pneumatic and electromechanical drives. Pneumatic drives are said to have high operating costs while the purchase of electromechanical drives is more expensive. The operating costs of pneumatics are mainly induced by the energy consumption to provide pressurized air. Therefore many different air saving measures for simple handling tasks are proposed in literature, which offer opportunities for reducing the air consumption in comparison to standard configurations. This paper provides an overview of different approaches for saving air and typical applications for these approaches. The thermodynamic concept of exergy is utilized in the paper. It provides a better standard of comparison between different technologies than common energy analysis because exergy accounts for a system’s ability to conduct work out of different forms of energy. An exergy based analysis and a comparison of different air saving circuits are presented. The approaches described in literature are suitable for different applications. The study includes an analysis of cross flow valves to recuperate parts of the exhaust air during backstroke. Furthermore shut-off-valves using the expansion energy saved in the pressurized air of meter-out controlled cylinders are evaluated. The use of expansion energy is applicable if the entire cylinder force is not required at the end stop. The circuits are simulated based on lumped parameter models (DSHplus). The simulations are validated by experiments. The exergy efficiency of the examined circuits is compared to a meter-out controlled standard drive. Furthermore possible restrictions for the use of these circuits are discussed. This includes stability problems caused by the reduced force in the end stop or influences on the drive dynamics. If these restrictions are considered in the design of the facility, the same level of process quality and reliability compared to a standard setup can be achieved. Large energy savings and therefore reductions of operating costs of the pneumatic drives are possible with limited effort.
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Ciortan, Sorin, Geanina Podaru, Iulian Gabriel Birsan, and Constantin Spanu. "Artificial Neural Networks Based Wear Prediction for Pneumatic Drives Seals." In ASME 2010 10th Biennial Conference on Engineering Systems Design and Analysis. ASMEDC, 2010. http://dx.doi.org/10.1115/esda2010-25376.

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Sealing systems used for non-metallic rod pneumatic drives have hard duty conditions, including the absence of any kind of lubricant and non-linear thermal regime. Due to this, the wear evolution of the lip -rod pair can be difficult to be estimated. The paper propose an ANN based method for wear prediction during service life of the lip seals, taking into account some seals’ working behavior influencing factors.
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Su, D. N., Q. Song, Y. X. Dou, and K. M. Zhong. "Light-Load Linear Reciprocating Motion Device Based on Servo Motor and Small Eccentricity Crank Mechanism." In ASME 2009 International Mechanical Engineering Congress and Exposition. ASMEDC, 2009. http://dx.doi.org/10.1115/imece2009-11241.

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Here designs innovatively a kind of NC light-load straight reciprocating motion device which has relative fully technical function. It is driven by a low-power servo motor to actuate small eccentricity crank mechanism to rotate or swing. The rotation or swing drives piston to move linearly short distance. With the help of the simple and functional device, the internal-reflux area-differential hydraulic stroke amplifying device, the small linear displacement of the piston can be amplified dozens times or even more than one hundred times, so the output plunger can obtain relative large linear displacement to meet the required output force and motion. This device of hydrau-electromechanial integration has the following advantages: (1) easy to control the frequency of straight reciprocating motion by editing the program to control the rotating/swing frequency of the servo motor; (2) easy to get the needed stroke of the output plunger by editing program to control the oscillation angle of the servo motor; (3) higher precision in motion and displacement than pneumatic/hydraulic transmission device while the same good buffering as in pneumatic/hydraulic transmission device.
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Moucka, Michal. "Identification of friction in pneumatic linear drive." In 2012 13th International Carpathian Control Conference (ICCC). IEEE, 2012. http://dx.doi.org/10.1109/carpathiancc.2012.6228694.

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Rakova, Elvira, and Jürgen Weber. "Exonomy Analysis for the Selection of the Most Cost-Effective Pneumatic Drive Solution." In 9th FPNI Ph.D. Symposium on Fluid Power. American Society of Mechanical Engineers, 2016. http://dx.doi.org/10.1115/fpni2016-1518.

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Today pneumatic drives are widely used to perform various motion tasks. They distinguish themselves through low purchase price and robust design, but show high energy consumption in comparison with electric drives. Existing energy saving measures lead to the reduction of energy consumption, but at the same time they cause the increase of the life cycle costs. All in all, the selection of pneumatic drives has to be done regarding their functionality, efficiency and costs. In this paper the novel Exonomy approach is presented for the selection of the most cost-effective pneumatic drive solution. Developed analysis enables 3 steps. First step includes the new approach for the sizing of pneumatic cylinders based on exergy-energy balance. The term Sizing Factor (SF) is introduced to perform the grade of over sizing of the actuator due to the loss occurred in the system. The second step provides the information about energy consumption. The last step enables the information about life cycle costs of the system and gains the data about amortization time based on Life Cycle Costs (LCC). In the current study all steps of Exonomy analysis has been applied to the vertical as well as to the horizontal pneumatic drives. This study has identified SF for various loading mass and velocities, typical for handling machines. The simulation models were validated with the help of the measurement results. Summarizing, a new formula is proposed to choose the design parameters of the drive. And finally, the quid-line is presented to choose the most cost-effective drive solution.
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Schindele, Dominik, and Harald Aschemann. "ILC for a fast linear axis driven by pneumatic muscle actuators." In 2011 IEEE International Conference on Mechatronics (ICM). IEEE, 2011. http://dx.doi.org/10.1109/icmech.2011.5971256.

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Jalal, Syed Shah, and Celal Batur. "Sliding Mode Motion Control of a Pneumatic Cylinder." In ASME 2004 International Mechanical Engineering Congress and Exposition. ASMEDC, 2004. http://dx.doi.org/10.1115/imece2004-60266.

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This paper presents simulation and implementation of a sliding mode controller on a pneumatic servo system. Typical controllers for pneumatic systems are fixed gain linear controllers. This study incorporates the non-linear characteristics of the pneumatic actuator into the controller design. A detailed mathematical model of a single ended pneumatic cylinder driven by a servo valve is developed. Effects of non-linear air flow through the valve, compressibility in the cylinder chambers and the residual volume of the connecting pipes are carefully considered. Both viscous and Coulomb frictions within the cylinder have been taken into account. A position tracking sliding mode control strategy is developed and implemented. A series of experiments and simulations are performed to show that the control performance is satisfactory in both tracking and regulation.
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Schindele, Dominik, and Harald Aschemann. "Disturbance compensation strategies for a high-speed linear axis driven by pneumatic muscles." In 2009 European Control Conference (ECC). IEEE, 2009. http://dx.doi.org/10.23919/ecc.2009.7074441.

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Gandhi, Prasanna S., Anand Savalia, and Himani Shah. "Design, Fabrication, and Characterization of a Pneumatic Micro Actuator." In ASME 2011 International Mechanical Engineering Congress and Exposition. ASMEDC, 2011. http://dx.doi.org/10.1115/imece2011-62917.

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Compact high force linear displacement pneumatic microactuators are useful in several applications including robotic systems, surgical micro-grippers, micro mechanisms, and so on. This paper presents development of a general purpose bellow type microactuator using silicon as structural material with a low stiffness double parallelogram flexure guides for a planar bellow piston. Double flexure mechanism achieves frictionless guiding in a perfect straight line of the actuator. The proposed design is different as compared to similar other designs in the literature in that the new design proposes a flexure guide for piston. Moreover, it is integrated with comb drive for servo actuation and is five times smaller. The actuators are fabricated using standard SOIMUMPs process and are further characterized. Actuation pressure, displacement and blocking force are measured which further demonstrates their performance in comparison with simulation results. Finally, as an application example micro-flexural logic device viz. NOT gate, actuated using the micro-pneumatic actuator is presented.
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