Relevant bibliographies by topics / Electro valve actuator

Contents

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

Academic literature on the topic 'Electro valve actuator'

Author: Grafiati
Published: 3 June 2025
Last updated: 1 August 2025

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Journal articles on the topic "Electro valve actuator"

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Wang, Zhenyu, Yuchuan Zhu, Renqiang Li, Cheng Liu, and Niyomwungeri Bruno. "Development of a dual magnetostrictive material rods–based electro-hydrostatic actuator." Journal of Intelligent Material Systems and Structures 30, no. 13 (2019): 1871–81. http://dx.doi.org/10.1177/1045389x19849247.

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Recently, the use of smart material–based electro-hydrostatic actuators is increasingly becoming more attractive to overcome the inherent disadvantages of conventional actuation systems and to offer new opportunities for performance improvement. A new type of a dual magnetostrictive material rods–based electro-hydrostatic actuator is presented in the current study. An active rotary rectification valve is utilized to convert small, high-frequency vibration displacements of the magnetostrictive material rods into continuous, smooth and bidirectional motion of a hydraulic cylinder by fluid rectif
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Fassbender, David, and Tatina Minav. "Finding the Perfect Match: Different Heavy-Duty Mobile Applications Call for Different Actuators." Proceedings 64, no. 1 (2020): 22. http://dx.doi.org/10.3390/iecat2020-08524.

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For the longest time, valve-controlled, centralized hydraulic systems have been the state-of-the-art technology to actuate heavy-duty mobile machine (HDMM) implements. Due to the typically low energy efficiency of those systems, a high number of promising, more-efficient actuator concepts has been proposed by academia as well as industry over the last decades as potential replacements for valve control—e.g., independent metering, displacement control, different types of electro-hydraulic actuators (EHAs), electro-mechanic actuators, or hydraulic transformers. This paper takes a closer look on
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Kravetskyi, Yurii, and Oleksii Chernov. "Improving the dynamic positioning accuracy of the electro-hydraulic drive." Mechanics and Advanced Technologies 8, no. 3(102) (2024): 271–79. http://dx.doi.org/10.20535/2521-1943.2024.8.3(102).310508.

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Research is focused on improving the dynamic accuracy of control surface positioning during the switching of hydraulic actuator modes and studying the processes and phenomena that cause control surface overshoot. Existing studies on the dynamic accuracy of hydraulic actuators have been analyzed. Transitional processes occurring in the " electromagnetic recirculation valve – electronic control unit" loop during changes in hydraulic actuator operating modes have been examined. The features of processes and physical phenomena leading to increased activation time of the hydraulic actuator have bee
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Yu, Li Ming, and Zi Qing Ye. "Research on Performances of Hybrid Actuation System with Dissimilar Redundancies." Advanced Materials Research 430-432 (January 2012): 1559–63. http://dx.doi.org/10.4028/www.scientific.net/amr.430-432.1559.

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Hybrid actuation system (HAS) with dissimilar redundancies conforms to the development trend of future actuation systems in more electric aircraft (MEA). Hybrid Actuation system is composed of a traditional servo valve controlled hydraulic actuator (SHA) and an electro-hydraulic actuator (EHA). It has two operating models, active/passive mode (A/P) and active/active mode (A/A). In A/A model both actuators are actively controlled. Corresponding to A/A model, SHA is actively controlled and EHA is passively controlled in A/P model. The hybrid actuation system is built in the AMESim simulation env
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Pan, P. F., J. Li, Z. B. Guo, and X. L. Chen. "Mathematical modeling and time-frequency characterization of aero-engine actuators." Journal of Physics: Conference Series 2746, no. 1 (2024): 012021. http://dx.doi.org/10.1088/1742-6596/2746/1/012021.

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Abstract The actuator is an essential part of the aero-engine control system, and its performance directly determines the efficiency of the whole system. The mathematical model of the aero-engine actuators, including electro-hydraulic servo valves, hydraulic cylinders, and actuators, is modeled and the time-frequency characteristics are analyzed using the Simulink module. Then, the system response is simulated and its time-frequency characteristics are analyzed. The simulation results show that the simulation error of the established actuator model is within the allowable range. The displaceme
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Yu, Li Ming, Shou Qiang Wei, Tian Tian Xing, and Hong Liang Liu. "Reliability Analysis of Hybrid Actuation Based on GSPN." Advanced Materials Research 430-432 (January 2012): 1914–17. http://dx.doi.org/10.4028/www.scientific.net/amr.430-432.1914.

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Generalized stochastic Petri nets is adopted to develop the reliability models of two operating modes of the hybrid actuation system, which is composed of a SHA (Servo valve controlled Hydraulic Actuator), an EHA (Electro-Hydrostatic Actuator) and an EBHA (Electrical Back-up Hydrostatic Actuator).The dependability of hybrid actuation is got through the Markov chain which the Petri nets sate is isomorphic to and the Monte-Carlo simulation. Simulations are conducted to analyze influences of the operating mode and the fault coverage on system reliability of hybrid actuation system.
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Yu, Yang, and Bo Qiang Shi. "Design and Simulation of Direct Drive Volume Control Actuator." Applied Mechanics and Materials 155-156 (February 2012): 162–66. http://dx.doi.org/10.4028/www.scientific.net/amm.155-156.162.

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The electro-hydraulic actuator which was designed based on the technology of the direct drive volume control, has the advantages of small volume, high reliability, energy saving and so on, and can effectively overcome the deficiency of traditional valve control electro-hydraulic actuator. This paper realizes co-simulation of direct drive volume control actuator (DDVCA) by using AMESim and Matlab/Simulink. The simulation results show that DDVCA has the characteristics of smooth operation, fast response speed, high control accuracy. Therefore, DDVCA can replace traditional servo valve electro-hy
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Wang, Long Hui, and Yong Wang. "Design of Direct Drive Electro-Hydraulic Actuator Based on Internet of Things Technology." Advanced Materials Research 945-949 (June 2014): 1601–5. http://dx.doi.org/10.4028/www.scientific.net/amr.945-949.1601.

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Direct drive electro-hydraulic actuator is a new type of hydraulic transmission with easy maintenance and high efficiency, which has been widely used in municipal engineering (such as water pipe network, gas pipe network), nuclear power plants, and other occasions. For these applications, we designed the electro-hydraulic valve actuator based on Internet of things technology (IOT for short). This paper introduces the mechanical structure and the working principle of the direct-drive electro-hydraulic valve actuator, analyzes IOT architecture. Detailed design was carried on according to the IOT
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Bai, Yanhong, and Long Quan. "IMPROVING ELECTRO-HYDRAULIC SYSTEM PERFORMANCE BY DOUBLE-VALVE ACTUATION." Transactions of the Canadian Society for Mechanical Engineering 40, no. 3 (2016): 289–301. http://dx.doi.org/10.1139/tcsme-2016-0022.

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Restricted by narrow bandwidth of the existing high-flow servo valves, dynamic performance of high-flow electro-hydraulic servo systems can only be enhanced to a certain extent by advanced control algorithms. This paper proposes a new hydraulic control circuit, in which two valves are arranged in parallel to control the actuator jointly. Frequency response of the equivalent valve is raised and thereby the performance of high-flow electro-hydraulic servo systems can be improved. A model of the proposed system is built and the principle of improving system dynamic performance using the new circu
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MILECKI, Andrzej, and Dominik RYBARCZYK. "Investigations of applications of smart materials and methods in fluid valves and drives." Journal of Machine Engineering 19, no. 4 (2019): 122–34. http://dx.doi.org/10.5604/01.3001.0013.6235.

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In the paper the investigations performed at the Division of Mechtronic Devices at Poznan University of Technology in the area of application of both: smart materials in electro-hydraulic and electro-pneumatic valves, and new methods to control of hydraulic servo drives, are presented. In a first part the piezo bender actuator is shortly described and its application in servo valve is proposed. This actuator replaced the torque motor in the available on the market servo valve. The new valve simulation model is proposed. The simulation and investigations results of the servo valve with the piez
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Dissertations / Theses on the topic "Electro valve actuator"

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Håkansson, Klas, and Mikael Johansson. "Modeling and Control of an Electro-Pneumatic Actuator System Using On/Off Valves." Thesis, Linköping University, Department of Electrical Engineering, 2007. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-8754.

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<p>To control the exhaust gas recirculation (EGR) and the exhaust brake, the position of a butterfly valve connected to a piston inside a pneumatic cylinder is controlled by altering the pressure inside the cylinder. This thesis evaluates the possibility to do this with pulse width modulation (PWM) controlled On/Off valves. The whole electro-pneumatic actuator system is built out of two On/Off valves and a cylinder.</p><p>A mathematical model of the system is constructed. The complete system model on state space form consists of nine states and is nonlinear. The model captures the dynamics of
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Tam, Kuok San. "Design and analysis of an electro-hydro-mechanical variable valve actuator for four-stroke automobile engines." Thesis, University of Macau, 2011. http://umaclib3.umac.mo/record=b2493685.

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Seung, Taehun. "Holistic-Lightweight Approach for actuation systems of the next generation aircraft." Universitätsverlag Chemnitz, 2017. https://monarch.qucosa.de/id/qucosa%3A34400.

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Currently the system development of aircraft engineering concentrates its focus on the reduction of energy consumption more than ever before. As a consequence, the efficiency of subsystems inside the aircraft is highlighted. According to previous investigations the simplification/unification of conventional multifaceted board energy systems by means of electric power management is the most promising way concerning aircraft global efficiency improvement. The main aim of the present work was to optimize a multi-device, heavy duty EHA-System by introducing of a comprehensive perspective. In order
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Winther-Larssen, Einar H. "Design of an Electric X-mas Tree Gate Valve Actuator." Thesis, Norwegian University of Science and Technology, Department of Engineering Cybernetics, 2007. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-9579.

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<p>The increasing need for more energy in the world is making the oil companies search for hydrocarbons in deeper water and with longer distances between the well and platform(step-out) never experienced before. Current systems are designed to operate in deepwater with relatively short step-outs. Since the search now is starting to exceed this, the operational conditions are changed and the electro-hydraulic system is closing in on its operational limits. Hence, the increasing need for a system that supports the long step-outs and the deeper water. Aker Kvaerner has started looking into the de
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Ma, Jia. "Model-based control of electro-pneumatic intake and exhaust valve actuators for IC engines." Diss., Connect to online resource - MSU authorized users, 2008.

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Thesis (Ph. D.)--Michigan State University. Dept. of Mechanical Engineering, 2008.<br>Title from PDF t.p. (viewed on Mar. 31, 2009) Includes bibliographical references (p. 150-151). Also issued in print.
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Larson, John P. "Design of a Magnetostrictive-Hydraulic Actuator Considering Nonlinear System Dynamics and Fluid-Structure Coupling." The Ohio State University, 2014. http://rave.ohiolink.edu/etdc/view?acc_num=osu1402566309.

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Schneider, Wolfgang. "Fully variable, simple and efficient - electrohydraulic - valve train for reciprocating engines." Technische Universität Dresden, 2020. https://tud.qucosa.de/id/qucosa%3A71231.

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A new camless electrohydraulic valve train concept for combustion engines was developed at Empa (Swiss Federal Laboratories for Materials Science and Technology, Dübendorf, Switzerland) and tested on a spark ignition passenger car engine. Besides full flexibility with regard to lift and timing of the engine gas exchange valves it features robustness, simplicity and in particular a low own drive power need due to a maximum of hydraulic energy recuperation. The engine test results confirm substantial efficiency gains in classical as well as in hybrid power trains while also maintaining additiona
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Raminosoa, Ando. "Actionneur linéaire rapide - Application aux soupapes électromagnétiques." Phd thesis, Université de Grenoble, 2012. http://tel.archives-ouvertes.fr/tel-00750824.

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Pour réduire les émissions de gaz polluants, les constructeurs automobiles cherchent à mieux contrôler le volume d'air introduit dans le moteur pour optimiser la combustion. Des dispositifs mécaniques ou hydrauliques couplés avec l'arbre à cames sont déjà en place dans certaines voitures et permettent des gains de 8 à 10% sur la consommation de carburant. L'utilisation d'un actionneur électromagnétique à la place de l'arbre à cames (application " camless ") pour commander les soupapes améliore nettement ce gain (15 à 20%). Les travaux de cette thèse consistent à modéliser une structure choisie
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CHEN, FAN-WEN, and 陳汎汶. "The Study of Key Successful Factors for Business Models of Taiwan Electric valve actuator Industry － A Case Study of S Company." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/3mv645.

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碩士<br>東海大學<br>高階經營管理碩士在職專班<br>105<br>Electric control valve is deemed as an indispensable essential equipment in modern industrial history pursuing high-performance era and the development of green energy. The need for most of the valve body switch can be controlled by the flow, velocity, temperature, pressure and other fluid medium inside the electric control valve to achieve precise control of input and output effectiveness. Electric control valve also plays a crucial role in the development of a variety of industries whether it be agricultural irrigation, food processing, medical equipment
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Books on the topic "Electro valve actuator"

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Institute of Electrical and Electronics Engineers., ed. Reliability data for pumps and drivers, valve actuators and valves. Institute of Electrical and Electronics Engineers, 1986.

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NCCER. 12207-16 Control Valves, Actuators, and Positioners Trainee Guide. Pearson Education, Limited, 2016.

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Book chapters on the topic "Electro valve actuator"

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Kuroda, Jumpei, Kaito Kimura, Ryutaro Ono, et al. "Study on Linear Actuators for Intake and Exhaust Systems of Internal Combustion Engines (Analytical Consideration of Thrust Characteristics by Permanent Magnet Array)." In Lecture Notes in Mechanical Engineering. Springer Nature Switzerland, 2024. http://dx.doi.org/10.1007/978-3-031-70392-8_3.

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AbstractTo enhance internal combustion engine performance, this study focuses on developing an electric valve drive system utilizing linear actuators for intake and exhaust valve control. The linear actuator, comprising a movable coil and a fixed permanent magnet, operates based on the principle of the Lorentz force. Unlike traditional magnetic circuits, this actuator employs five permanent magnets with different magnetization directions to concentrate the flux on the coil. In this study, multiple models with varying ratios of these permanent magnets were created and analyzed using finite elem
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Vyas, J. Jaidev, Balamurugan Gopalsamy, and Harshavardhan Joshi. "Servo Valve Characteristic Curves." In Electro-Hydraulic Actuation Systems. Springer Singapore, 2018. http://dx.doi.org/10.1007/978-981-13-2547-2_3.

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Vyas, J. Jaidev, Balamurugan Gopalsamy, and Harshavardhan Joshi. "Mathematical Modeling of Flapper Nozzle Valve." In Electro-Hydraulic Actuation Systems. Springer Singapore, 2018. http://dx.doi.org/10.1007/978-981-13-2547-2_2.

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You-jun, Yue, Wang Hong-jun, and Zong Qun. "The Valve Electric Actuator’s Fault Diagnosis Method Based on Principle Component Analysis and Support Vector Machines." In Advances in Intelligent and Soft Computing. Springer Berlin Heidelberg, 2012. http://dx.doi.org/10.1007/978-3-642-29455-6_20.

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Dinca, L., and J. I. Corcau. "Experimental Identification of a Servo-Valve Parameters Used for an Electro-Hydraulic Servo-Actuator Development." In DAAAM International Scientific Book 2013. DAAAM International Vienna, 2013. http://dx.doi.org/10.2507/daaam.scibook.2013.49.

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Motzki, Paul, and Gianluca Rizzello. "Smart Shape Memory Alloy Actuator Systems and Applications." In Shape Memory Alloys - New Advances [Working Title]. IntechOpen, 2023. http://dx.doi.org/10.5772/intechopen.1002632.

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Shape memory alloys (SMAs) have been established in a wide range of applications. Lead by the medical sector, nickel-titanium-based alloys are used for the realization of stents, guide wires, and other medical or surgical equipment. Besides this field, where mainly the superelastic material characteristics are used, first products based on actuation via the shape memory effect have been introduced to the market. These shape memory actuators or actuator systems either use temperature change directly for the realization of work output, for example, in thermostat valves, or are thermally activate
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Rufer, Alfred. "Coupling Two Rotary-Type Actuators." In Semi-rotary and Linear Actuators for Compressed Air Energy Storage and Energy Efficient Pneumatic Applications. BENTHAM SCIENCE PUBLISHERS, 2023. http://dx.doi.org/10.2174/9789815179095123010005.

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This chapter presents the first example of the combination of two actuators of different volumes with which the principle of adding an expansion work can be realized. The two semi-rotary actuators are mechanically coupled and describe an oscillatory motion. Then the oscillatory motion is transmitted to an electric generator through a so-called motion rectifier. The structure of the new system is presented with the control valves and control circuitry. The different variables of the system as pressure, torques, and mechanical work are calculated by simulation. The efficiency of the new system i
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Florea, Larisa, Dermot Diamond, and Fernando Benito-Lopez. "Opto-Smart Systems in Microfluidics." In Research Perspectives on Functional Micro- and Nanoscale Coatings. IGI Global, 2016. http://dx.doi.org/10.4018/978-1-5225-0066-7.ch010.

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The possibility of using photo-stimulus to control flow in microfluidics devices is very appealing as light can provide contactless stimulation, is biocompatible and can be applied in a non-invasive and highly precise manner. One of the most popular ways to achieve photo-control flow in microfluidic channels is throughout the use of photo-responsive molecules. We review here the different principles and strategies of using photo-responsive molecules to induce or control liquid motion using light, which include the use of photo-controlled polymeric actuators, photo-sensitive coatings, or photo-
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von Szczepanski, Johannes, Yauhen Sheima, Patrick M. Danner, et al. "Dielectric Elastomers for Energy Transduction." In Innovations of Rubber Chemistry and Technology for Sustainability. Royal Society of Chemistry, 2025. https://doi.org/10.1039/9781837675470-00257.

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Addressing global challenges such as energy production and storage, climate change, and the aging population requires innovative solutions. Dielectric elastomer transducers (DETs) have the potential to make significant contributions to tackle these issues. They are electrically driven elastic capacitors capable of converting one form of energy into another and can be used as actuators, generators, sensors, and capacitive light-emitting devices. Actuators convert electrical into mechanical energy and have various applications, including valves, pumps, optical lenses, engines, and artificial mus
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Kumar, Abhishek. "Fabrication and Characterization of Thin Film Capacitor With Ferroelectric Material." In Advances in Chemical and Materials Engineering. IGI Global, 2024. http://dx.doi.org/10.4018/979-8-3693-3398-3.ch005.

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Ferroelectric thin-film capacitors are a significant field of study in modern electronics due to they have several benefits, including high capacitance density, low leakage currents, and non-volatile memory characteristics. This chapter examines the fabrication and characterization strategies used in the creation of ferroelectric thin-film capacitors with dielectric BaTiO3 and PbTiO3 thin film deposited in the LaNiO3 electrode. The crystallographic analysis of deposited film is carried out using XRD and found that the film is crystalline with orientation (101) for BaTiO3 and (110) for PbTiO3.
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Conference papers on the topic "Electro valve actuator"

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Kondoh, Yutaka, and Shinichi Yokota. "Micro Control Valves by Making Use of Electro-Rheological Fluids (Control of One-Link Manipulator With the Micro ER Valve)." In ASME 1997 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 1997. http://dx.doi.org/10.1115/imece1997-1281.

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Abstract A three-port micro control valve by making use of electro-rheological (ER) fluids is proposed and fabricated, whose size is 12 × 12 × 12mm. Static and dynamic characteristics of the micro valve are examined. The valve can produce load pressure change of 0.35MPa at maximum electric field strength of 5kV/mm. In addition, the micro valve is applied to control a one-link manipulator with a small-sized artificial rubber-muscle-type actuator. The effectiveness of the micro valve is experimentally demonstrated for use in fluid servo systems.
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Ercis, O. Fatih. "Modelling and Simulation of Solenoid Driven Electro-Pneumatic Actuator." In ASME 2024 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2024. https://doi.org/10.1115/imece2024-141582.

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Abstract This paper presents the modelling and simulation of a servo electro-pneumatic actuator utilizing solenoids. Many control actuation systems employ electro-hydraulic or electro-mechanical servo actuators. However, electro-pneumatic servo actuators using solenoids are becoming more popular due to their lower cost and simpler structure. Pneumatic actuators are preferred due to their low cost, simple structure, fast response, low electromagnetic interference, high force/weight ratio. In this study, poppet type on-off solenoid valves, driven by pulse width modulation (PWM), are used to achi
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Ma, Jia, Guoming Zhu, Tom Stuecken, Andrew Hartsig, and Harold Schock. "Electro-Pneumatic Exhaust Valve Modeling and Control for an Internal Combustion Engine." In ASME 2008 Internal Combustion Engine Division Spring Technical Conference. ASMEDC, 2008. http://dx.doi.org/10.1115/ices2008-1653.

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Variable valve actuation of Internal Combustion (IC) engines is capable of significantly improving their performance. It can be divided into two main categories: variable valve timing with cam shaft(s) and camless valve actuation. For camless valve actuation, research has been centered in electro-magnetic, electro-hydraulic, and electro-pneumatic valve actuators. This research studies the control of the electro-pneumatic valve actuator. The modeling and control of intake valves for the Electro-Pneumatic Valve Actuators (EPVA) was shown in early publications and this paper extends the EPVA mode
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Britz, Rouven, Stefan Seelecke, Gianluca Rizzello, and Paul Motzki. "Decoupled Antagonistic SMA Actuator for Valve Applications." In ASME 2020 Conference on Smart Materials, Adaptive Structures and Intelligent Systems. American Society of Mechanical Engineers, 2020. http://dx.doi.org/10.1115/smasis2020-2214.

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Abstract This paper presents a novel shape memory alloy (SMA) valve actuator concept for active venting in injection molding applications. The developed system can be used to expel air which is trapped during the injection molding process. If such air bubbles are not properly removed from the cavity, they would result into an uncomplete cast and, in turn, in an unsuccessful molding. To address this issue, we propose a new valve system based on an agonist-antagonist SMA-spring actuator concept. By means of the developed SMA valve, the same dynamic performance of conventional actuators can be ac
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Pournazeri, Mohammad, Amir Khajepour, and Amir Fazeli. "A New Valve Lift Control Technique in Electrohydraulic Variable Valve Actuation Systems." In ASME 2010 Internal Combustion Engine Division Fall Technical Conference. ASMEDC, 2010. http://dx.doi.org/10.1115/icef2010-35050.

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Besides valve timings and opening duration control, several benefits could be achieved in engine operation if the valve actuation system could control the maximum valve displacement during a particular engine condition. Typically, in most electro-hydraulic variable valve actuation systems (VVA), the maximum valve lift along with valve opening/closing events are adjusted simultaneously by precise control of the spool travel in servo-valves. However, at high engine speeds, concurrent control of timings and peak valve lift becomes difficult and sometimes even impossible due to servo-valve respons
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Mkrtchyan, Haykaz, Ararat Torosyan, and Hua Peng. "Curtiss-Wright Electro-Hydraulic Actuators for Main Steam and Main Feedwater Isolation Valves." In ASME/NRC 2017 13th Pump and Valve Symposium. American Society of Mechanical Engineers, 2017. http://dx.doi.org/10.1115/pvs2017-3525.

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This paper is about Curtiss Wright’s electro-hydraulic actuator environmental and seismic qualification for Main Steam Isolation Valve (MSIV) and Main Feedwater Isolation Valve (MFIV) applications. The qualification was performed in compliance with IEEE-382 and RCC-E requirements qualifying the actuator for US, Chinese and European power plant designs. The qualification entailed several challenges and application of analytical and test methodologies. The weight of the actuator/yoke assembly made seismic qualification one of the most challenging steps in the program. The seismic qualification w
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York, Alexander, Micah Hodgins, and Stefan Seelecke. "Electro-Mechanical Analysis of a Biased Dielectric EAP Actuator." In ASME 2009 Conference on Smart Materials, Adaptive Structures and Intelligent Systems. ASMEDC, 2009. http://dx.doi.org/10.1115/smasis2009-1441.

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Dielectric Electro-Active Polymers (DEAP’s) can achieve substantial deformation (&amp;gt;300% strain) while, compared to their ionic counterparts, sustaining large forces. This makes them attractive for various actuation and sensing applications such as light weight and energy efficient valve and pumping systems. This paper provides a systematic experimental investigation of the quasi-static and dynamic electro-mechanical properties of a commercially available dielectric EAP actuator. In order to completely characterize the fully coupled behavior force vs. displacement measurements at various
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Nalbach, Sophie, Paul Motzki, and Stefan Seelecke. "SMA-Based Hydraulic Switching Valve." In ASME 2015 Conference on Smart Materials, Adaptive Structures and Intelligent Systems. American Society of Mechanical Engineers, 2015. http://dx.doi.org/10.1115/smasis2015-8901.

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Hydraulic switching valves are vital components commonly used in hydraulic applications. In a simple configuration, the valve has two states, open and closed. A spring pushes a spool into its first position and typically an electro-magnetic actuator working against the spring force is used to pull the spool into its second position. Shape Memory Alloys (SMA’s) are known as actuators with very high energy density. This fact allows for the construction of very light weight and compact systems. The focus of this work is to replace the traditionally used electro-magnetic actuator in a hydraulic sw
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Satalagaon, Ajay Kumar, Abhijit Guha, and Dhananjay Kumar Srivastava. "Development and Control System Design of an Electro-Pneumatic Variable Valve Actuator to Be Retrofitted to an SI Engine." In WCX SAE World Congress Experience. SAE International, 2025. https://doi.org/10.4271/2025-01-8377.

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&lt;div class="section abstract"&gt;&lt;div class="htmlview paragraph"&gt;In a conventional cam-based valve actuation system, the valve events are tied up with the rotation of the crankshaft. In contrast, the electronic variable valve actuation (VVA) system enables flexible control of valve events independent of the crankshaft rotation. The present article discusses the development and control system design of a single-acting electro-pneumatic variable valve actuation (EPVVA) system that can be retrofitted to a conventional SI engine. The EPVVA system utilizes fast switching solenoid valves wh
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Ketelsen, Søren, Torben Ole Andersen, Morten Kjeld Ebbesen, and Lasse Schmidt. "Mass Estimation of Self-Contained Linear Electro-Hydraulic Actuators and Evaluation of the Influence on Payload Capacity of a Knuckle Boom Crane." In ASME/BATH 2019 Symposium on Fluid Power and Motion Control. American Society of Mechanical Engineers, 2019. http://dx.doi.org/10.1115/fpmc2019-1689.

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Abstract:
Abstract Self-contained linear hydraulic drives are characterized by having integrated the hydraulic power unit e.g. electrical prime mover, hydraulic pumps etc. and the hydraulic cylinder in a single compact unit. Compared to the hydraulic cylinder itself, the mass of the self-contained linear actuator is significantly larger. For some applications, e.g. crane manipulators the additional mass of the actuators compared to conventional valve-controlled hydraulics, may reduce the payload capacity, which is a central performance parameter. As a case study, a medium sized two link knuckle boom cra
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