Academic literature on the topic 'Electrohydraulic drive'

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Journal articles on the topic "Electrohydraulic drive"

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Medvedev, Yu A., and V. P. Kuznetsov. "Multimotor electrohydraulic drive systems." Russian Engineering Research 31, no. 5 (May 2011): 428–34. http://dx.doi.org/10.3103/s1068798x11050157.

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Xu, Ming, and Bo Jin. "Sine Simulation of Energy Regulation Based Electrohydraulic Variable-Speed Drive." Applied Mechanics and Materials 278-280 (January 2013): 365–69. http://dx.doi.org/10.4028/www.scientific.net/amm.278-280.365.

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The variable-speed electrohydraulic drive, which can achieve similar energy efficiency as volume drive system, has some good features. But the slow response and poor low-speed performance limit the development of the variable-speed electrohydraulic drive. The energy regulation based variable-speed electrohydraulic drive is a good solution to solve these problems by adding an energy regulation device and a throttling valve into the system. The sine simulations of energy regulation based electrohydraulic variable-speed drive are carried out. The simulation results have showed that the energy regulation system can not only achieve the goal of a good response, but also keep a good energy-saving performance.
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Milecki, Andrzej, and Jarosław Ortmann. "Influences of Control Parameters on Reduction of Energy Losses in Electrohydraulic Valve with Stepping Motors." Energies 14, no. 19 (September 26, 2021): 6114. http://dx.doi.org/10.3390/en14196114.

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In many heavy machines, the use of high force drives is required. For such tasks, electrohydraulic servo drives with proportional valves are used most often. In these valves, the proportional electromagnets are applied. If high precise control is additionally required, it is necessary to use expensive servo valves or precise stepping motors. In this paper, the application of a valve with one (or with two) stepping motors in the electrohydraulic servo drive is described. Such motors may work in a micro-step mode, which enables the precise positioning of the valve spool with low energy consumption. The control system structure that was used for positioning, consisting of such an electrohydraulic servo drive with a valve having stepping motors, is described. In the investigations, the following control parameters are considered: the number of stepping motors used, proportional gain coefficients, supply pressure, and desired step distance. The simulation model of the servo drive is proposed, enabling the investigations of energy consumption during the positioning process. In the investigations, the drive step responses are recorded and compared, taking into account the rise time and energy consumption. The overshot-free algorithm is used in the following step and tested in positioning tasks. The collected results of energy consumption of the drive during the positioning process are compared with other solutions.
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., Srishti Sharma. "DESIGN PROCEDURE OF AN ELECTROHYDRAULIC DRIVE." International Journal of Research in Engineering and Technology 04, no. 06 (June 25, 2015): 242–47. http://dx.doi.org/10.15623/ijret.2015.0406040.

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Grechikhin, Valeriy V., Galina A. Galka, Anatoliy I. Ozerskiy, and Mikhail E. Shoshiashvili. "The method of dynamic operating modes investigation in electrohydraulic drive systems with improved accuracy of positioning executive elements." MATEC Web of Conferences 226 (2018): 04024. http://dx.doi.org/10.1051/matecconf/201822604024.

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The article describes the method of dynamic operating modes investigation in electrohydraulic drive systems with improved accuracy of positioning output element. The method is the evolution of the fundamental positions of the mechanics of continuous media with moving boundaries as applied to the research of non-stationary processes accompanying the operation of hydraulic drive systems with piston hydraulic machines. The method is based on generalized modeling (technical, physical, mathematical and computer), takes into account the peculiarities of mutual influence of electric and hydraulic machines during their joint work as part of the electrohydraulic drive, which raises the level and adequacy of actuators simulation, as well as the reliability of the assessment of their technical condition. The method extends the field of research, improves the accuracy of the calculation of the positioning of the executive elements, taking into account the different dynamic modes of the drives under study.
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Bachman, Paweł, and Andrzej Milecki. "Investigation of Electrohydraulic Drive Control System with the Haptic Joystick." Acta Mechanica et Automatica 12, no. 1 (March 1, 2018): 5–10. http://dx.doi.org/10.2478/ama-2018-0001.

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AbstractThe term haptic is used to indicate the presence of force feedback from the manipulated object to the operator. One of the most commonly used haptic devices are joysticks. Such joysticks can be successfully applied also in communication with drive system, giving the human operator a feel of the output force. In the paper one axis joystick with force feedback used to control the electrohydraulic drive is proposed. In this joystick, a controlled brake with magnetorheological fluid and a small DC motor are applied. A beam with a strain gauge is used in a joystick arm, enabling the measurement of the force. In the joystick axis also a potentiometer is assembled, which measured the current arm position. In order to develop the control algorithms an electrohydraulic drive simulation and virtual model is worked out and then a haptic joystick is connected to it. The simulation results that have been obtained, enabled to design and test impedance and admittance control strategies for the system composed of haptic joystick and a real electrohydraulic drive. Finally the whole system is built, implemented and investigated in a laboratory environment. Investigations are conducted in conditions similar to real ones, in a situation where hydraulic piston touches an obstacle and the operator cannot observe this piston very accurately. Fifteen operators have been tested this way. The outcomes indicate that haptic control can improve the human feeling of forces between electrohydraulic drive and an obstacle and, thanks to this, the manual control is more accurate and safer.
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Isaev, Y. M., R. A. Sunarchin, and A. V. Matrosov. "Mathematical modeling of electrohydraulic drive for hydraulic turbine." St. Petersburg State Polytechnical University Journal 214, no. 1 2015 (March 2015): 30–36. http://dx.doi.org/10.5862/jest.214.4.

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Sokolov, V., O. Krol, and O. Stepanova. "Nonlinear simulation of electrohydraulic drive for technological equipment." Journal of Physics: Conference Series 1278 (July 2019): 012003. http://dx.doi.org/10.1088/1742-6596/1278/1/012003.

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Hong-Zhou Tan and N. Sepehri. "Parametric fault diagnosis for electrohydraulic cylinder drive units." IEEE Transactions on Industrial Electronics 49, no. 1 (2002): 96–106. http://dx.doi.org/10.1109/41.982253.

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Davies, R. M., and J. Watton. "Intelligent control of an electrohydraulic motor drive system." Mechatronics 5, no. 5 (August 1995): 527–40. http://dx.doi.org/10.1016/0957-4158(95)00024-y.

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Dissertations / Theses on the topic "Electrohydraulic drive"

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Plummer, Andrew. "Electrohydraulic servovalves – past, present, and future." Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2016. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-200252.

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In 2016 it is 70 years since the first patent for a two-stage servovalve was filed, and 60 years since the double nozzle-flapper two-stage valve patent was granted. This paper reviews the many alternative servovalve designs that were investigated at that time, focusing on two-stage valves. The development of single-stage valves – otherwise known as direct drive or proportional valves – for industrial rather than aerospace application is also briefly reviewed. Ongoing research into alternative valve technology is then discussed, particularly focussing on piezoelectric actuation and the opportunities afforded by additive manufacturing.
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Michel, Sebastian, and Jürgen Weber. "Prediction of the thermo-energetic behaviour of an electrohydraulic compact drive." Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2016. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-200116.

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Due to good energy-efficiency of electrohydraulic compact drives a cooling aggregate often is not installed. The operating temperature is governed by the complex interaction between dissipative heat input and passive heat output. This paper targets the simulation of the thermo-energetic behaviour of an electrohydraulic compact drive by means of a lumped parameter model in order to predict the operating temperature. The developed thermo-hydraulic model is validated against measurements utilising thermocouples and a thermographic camera to capture temperatures. The results show, that the presented methodology enables a satisfying accurate prediction of the thermo-energetic behaviour of electrohydraulic compact drives. A further analysis of simulation results is given, highlighting the power losses and heat rejection capabilities of different components. Finally, measures for the improvement of the heat rejection capabilities are studied.
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List, Walter. "Efficiency that borders on the impossible electrohydraulic drives." Technische Universität Dresden, 2020. https://tud.qucosa.de/id/qucosa%3A71234.

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Hydraulic displacement systems are a technology that has been known for many years. Nevertheless, the impression is created that the large fields of application are not only being developed very tentatively, but in many cases are being completely denied. What might be the reason for this? Are the electromechanical solutions better? What is the missing element to build the bridge from the available hydraulic-mechatronic technology to broad customer application? This paper provides an overview of how the targeted use of the latest technologies in the product and in the entire value-added chain has resulted in a complete mechatronic hydraulic system that pushes the limits of feasibility in terms of power, accuracy and efficiency and delivers a clearly calculable benefit for both the plant manufacturer and the end customer. In addition to the great accuracy and high reliability, there are also considerable savings in the total cost of ownership (TCO) due to a previously unattained level of efficiency. The thoughts of health and environmental protection are just as much a part of the considerations as product safety and personal protection. Finally, an outlook on possible expansions is given, and which areas of application are possible for the technologies developed within the project. The aim is not to show how the traditional fields of application of hydraulics are to be defended, but rather to use the strengths of a hydraulic-mechatronic approach in a conscious and clearly structured way to make new applications possible.
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Zagar, Philipp, and Rudolf Scheidl. "On the use of singular perturbation based model hierarchies of an electrohydraulic drive for virtualization purposes." Technische Universität Dresden, 2020. https://tud.qucosa.de/id/qucosa%3A71183.

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Virtualization of products means the representation of some of their properties by models. In a stronger digitalized world, these models will gain a much broader use than models had in engineering so far. Even for one modelling aspect different models of the same product will be used, depending on the specific need of the model user. That need may change in the course of product life, between first product concepts till over the different phases of development, to product use, maintenance, or even recycling. Since a digitalized world use of these diverse models will not be limited to experts model consistency will play a much stronger role. Model hierarchies will play a stronger role and can serve also as means for teaching product users a deeper understanding of product properties. A consistent model hierarchy leading from a simple to a more advanced property representation can support this learning process. In this paper perturbation methods are analyzed as a means for setting up model hierarchies in a consistent manner. This is studied by models for the behavior of a electrohydraulic drive, which consists of a variable speed motor, a pump, a double stroke cylinder and a counterbalance valve. Model hierarchy is achieved by model reduction in the sense of perturbation theory. The use of these different models for different questions in a system design context and their interrelations are exemplified.
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Matthiesen, Gunnar, Daniel Merget, Tobias Pietrzyk, Stephan Ziegler, Johannes Henrich Schleifenbaum, and Katharina Schmitz. "Design and experimental investigation of an additive manufactured compact drive." Technische Universität Dresden, 2020. https://tud.qucosa.de/id/qucosa%3A71082.

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In recent years, additive manufacturing (AM) has become one of the most revolutionary and promising technologies in manufacturing. The process of making a product layer by layer is also often referred to as 3D printing. Once employed purely for prototyping, AM is now increasingly used for small series production, for example in aerospace applications. The paper starts with a motivation for AM in hydraulic applications and the development of an AM internal gear pump. For a better understanding of the manufacturing process, a brief introduction to AM highlighting the advantages and challenges is given. The AM internal gear pump is part of an electrohydraulic power pack, which is used to power an electrohydraulic actuator (EHA). The power pack contains all necessary peripherals to realise the hydraulic system of the EHA. The AM process allows for new design possibilities, but the process differs strongly compared to subtractive manufacturing processes and therefore is outlined here. The paper concludes by presenting measurement results of the AM internal gear pump.
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Robenek, Vít. "Návrh energeticky úsporného hydraulického systému pro silové zatěžování pohonných soustav vozidel." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2015. http://www.nusl.cz/ntk/nusl-232081.

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The thesis focuses on a hydraulic system design for a specific application of hydrostatic drive with regard to energy efficiency of proposed solution. Standard hydraulic and electronic components are used, mostly products of Bosch Rexroth. The aim of the thesis is to carry out a complex design from mechanic through hydraulic up to the electronic part of the system. After a short introduction in the beginning of the thesis is the particular application described and analyzed. Then the elemental principles of hydraulic devices and systems are explained. In the following part the actual solution is presented, which expands to several different alternatives. These alternatives are compared according to set criteria and the selected alternative is then further developed. At the end of the thesis, the outputs are evaluated and the direction of further possible improvements in the design is outlined.
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Ali, Emad [Verfasser]. "Self-Learning Condition Monitoring for Smart Electrohydraulic Drives / Emad Ali." Düren : Shaker, 2020. http://d-nb.info/1211931129/34.

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Köckemann, Albert, and Benno Birke. "Consistent Automation Solutions for Electrohydraulic Drives in Times of Industry 4.0." Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2016. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-200192.

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Electrohydraulic drives are primarily used whenever a low power/weight ratio, a compact build and/or large forces are required for individual applications. These drives are often used together with electric drive technology in machines. However, in terms of automation, unlike electric drives, electrohydraulic drives are still largely connected via analog interfaces and centralized closed control loops today. To compensate for this competitive disadvantage of hydraulic drive technology and, at the same time, significantly enhance its performance and diagnostics capability, a consistent automation solution has been developed that can be configured for both centralized and decentralized solutions. This contribution firstly gives an overview over this complete solution already available and its classification in the automation world. In a second step, the subset of decentralized drive solutions contained therein is presented in more detail and their benefits are explained on the basis of some exemplary applications.
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Reichert, Maxim [Verfasser]. "Development of High-Response Piezo-Servovalves for Improved Performance of Electrohydraulic Cylinder Drives / Maxim Reichert." Aachen : Shaker, 2010. http://d-nb.info/108076707X/34.

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Book chapters on the topic "Electrohydraulic drive"

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Sokolov, Volodymyr, Olga Porkuian, Oleg Krol, and Yevhen Baturin. "Design Calculation of Electrohydraulic Servo Drive for Technological Equipment." In Advances in Design, Simulation and Manufacturing III, 75–84. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-50794-7_8.

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Adamczyk, Mirosław, and Andrzej Milecki. "Application of Artificial Neural Network for Modelling of Electrohydraulic Drive." In Recent Advances in Automation, Robotics and Measuring Techniques, 3–10. Cham: Springer International Publishing, 2014. http://dx.doi.org/10.1007/978-3-319-05353-0_1.

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Rybarczyk, Dominik, Piotr Owczarek, and Arkadiusz Jakubowski. "Development of Electronic Controller for Haptic Joystick and Electrohydraulic Drive." In Automation 2017, 67–75. Cham: Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-54042-9_6.

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Rybarczyk, Dominik, Dariusz Sędziak, Piotr Owczarek, and Adam Owczarkowski. "Modelling of Electrohydraulic Drive with a Valve Controlled by Synchronous Motor." In Advances in Intelligent Systems and Computing, 215–22. Cham: Springer International Publishing, 2015. http://dx.doi.org/10.1007/978-3-319-15796-2_22.

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Sokolov, Volodymyr, Oleg Krol, and Oksana Stepanova. "Choice of Correcting Link for Electrohydraulic Servo Drive of Technological Equipment." In Lecture Notes in Mechanical Engineering, 702–10. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-22365-6_70.

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Sokolov, Volodymyr, and Oleg Krol. "Determination of Transfer Functions for Electrohydraulic Servo Drive of Technological Equipment." In Lecture Notes in Mechanical Engineering, 364–73. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-93587-4_38.

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Sokolov, Volodymyr, Olga Porkuian, Oleg Krol, and Oksana Stepanova. "Design Calculation of Automatic Rotary Motion Electrohydraulic Drive for Technological Equipment." In Lecture Notes in Mechanical Engineering, 133–42. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-77719-7_14.

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Rybarczyk, Dominik, Piotr Owczarek, and Arkadiusz Kubacki. "Design of Control System for an Electrohydraulic Drive Based on the Valve with PMSM Motor." In Challenges in Automation, Robotics and Measurement Techniques, 63–71. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-29357-8_6.

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Ozerskij, A. I., and N. A. Tseligorov. "Method of Investigating Dynamic Operating Modes of Electrohydraulic Drive Systems with Movable Boundaries of Working Fluids." In Proceedings of the 4th International Conference on Industrial Engineering, 359–66. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-95630-5_39.

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Milecki, Andrzej, Dominik Rybarczyk, and Piotr Owczarek. "Application of the MFC Method in Electrohydraulic Servo Drive with a Valve Controlled by Synchronous Motor." In Recent Advances in Automation, Robotics and Measuring Techniques, 167–74. Cham: Springer International Publishing, 2014. http://dx.doi.org/10.1007/978-3-319-05353-0_17.

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Conference papers on the topic "Electrohydraulic drive"

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Sosnovskiy, N. G., D. N. Popov, and M. V. Siukhin. "Sensitivity of Dynamic Characteristics of Electrohydraulic Servo Drive." In 2018 International Conference on Industrial Engineering, Applications and Manufacturing (ICIEAM). IEEE, 2018. http://dx.doi.org/10.1109/icieam.2018.8728669.

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Sokolov, Volodymyr, Oleg Krol, and Oksana Stepanova. "Automatic Control System for Electrohydraulic Drive of Production Equipment." In 2018 International Russian Automation Conference (RusAutoCon). IEEE, 2018. http://dx.doi.org/10.1109/rusautocon.2018.8501609.

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Sanderson, Douglas G. "Constant Speed Electrohydraulic Drive Mechanism for a Green Pea Harvester." In 1986 SAE International Off-Highway and Powerplant Congress and Exposition. 400 Commonwealth Drive, Warrendale, PA, United States: SAE International, 1986. http://dx.doi.org/10.4271/861196.

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Milecki, Andrzej, and Jaroslaw Ortmann. "Control of electrohydraulic drive with valve having two stepping motors." In 2016 17th International Carpathian Control Conference (ICCC). IEEE, 2016. http://dx.doi.org/10.1109/carpathiancc.2016.7501148.

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Xu, Ming, Guojin Chen, and Jing Ni. "Hierarchical control of energy regulation based variable-speed electrohydraulic drive." In 2010 International Conference on Information and Automation (ICIA). IEEE, 2010. http://dx.doi.org/10.1109/icinfa.2010.5512186.

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Manhartsgruber, Bernhard. "Singular Perturbation Analysis of an Electrohydraulic Servo-Drive With Discontinuous Reduced Dynamics." In ASME 1999 Design Engineering Technical Conferences. American Society of Mechanical Engineers, 1999. http://dx.doi.org/10.1115/detc99/vib-8178.

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Abstract This paper deals with the position control of a hydraulic servo-drive for translatory motion. The application of a nonlinear composite feedback control based on singular perturbation methods (Kokotovic, Khalil & O’Reilly 1986) is described. A comparison with linear output and state feedback shows the benefits of nonlinear control. The nonlinear design uses feedback linearization for the reduced system and simple proportional feedback for the control of the pressure difference (fast system). The feedback linearization results in a standard second order behavior of the reduced system with cutoff frequency and damping as decoupled design parameters. The proposed method is especially suitable for oscillation drives. Experimental results are given for step responses and sine tracking.
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Ming, Xu, and Jin Bo. "Step-response simulation of energy regulation based electrohydraulic variable-speed drive." In 2012 International Conference on Information and Automation (ICIA). IEEE, 2012. http://dx.doi.org/10.1109/icinfa.2012.6246779.

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Sokolov, Volodymyr, Oleg Krol, and Yevhen Baturin. "Dynamics Research and Automatic Control of Technological Equipment with Electrohydraulic Drive." In 2019 International Russian Automation Conference. IEEE, 2019. http://dx.doi.org/10.1109/rusautocon.2019.8867652.

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Berg, H. "Position control of an electrohydraulic rotary drive using frequency domain methods." In 1999 European Control Conference (ECC). IEEE, 1999. http://dx.doi.org/10.23919/ecc.1999.7099778.

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Ming, Xu, Ni Jing, and Chen Guojin. "Variable-load Simulation of Energy Regulation Based Variable-speed Electrohydraulic Drive System." In 2011 International Conference on Measuring Technology and Mechatronics Automation (ICMTMA). IEEE, 2011. http://dx.doi.org/10.1109/icmtma.2011.844.

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Reports on the topic "Electrohydraulic drive"

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Sokolov, Volodymyr, Oleg Krol, Oksana Stepanova, and Petko Tsankov. Dynamic Characteristics of Rotary Motion Electrohydraulic Drive with Volume Regulation. "Prof. Marin Drinov" Publishing House of Bulgarian Academy of Sciences, May 2020. http://dx.doi.org/10.7546/crabs.2020.05.12.

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