Academic literature on the topic 'Electro-hydraulic effect'

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Journal articles on the topic "Electro-hydraulic effect"

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Zhang, Wei, Qinghao Yuan, Yifan Xu, et al. "Research on Control Strategy of Electro-Hydraulic Lifting System Based on AMESim and MATLAB." Symmetry 15, no. 2 (2023): 435. http://dx.doi.org/10.3390/sym15020435.

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Given the influence of flow instability, parameter uncertainty, and unpredictable disturbances in electro-hydraulic lifting systems, high-precision position control for electro-hydraulic lifting systems is challenging to achieve. This study proposes an observer–sliding mode control strategy to improve the control accuracy of the tractor electro-hydraulic lifting system. Firstly, the principle of the electro-hydraulic hoisting system is analyzed. Secondly, a mathematical model of the electro-hydraulic hoisting system is established, and the electro-hydraulic hoisting system is reduced to design
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Xie, Yu Dong, Yan Jun Liu, and Yong Wang. "Effect of Internal Leakage on an Electro-Hydraulic Servo-Driven Control Valve Performance." Applied Mechanics and Materials 99-100 (September 2011): 901–5. http://dx.doi.org/10.4028/www.scientific.net/amm.99-100.901.

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The principle of an electro-hydraulic servo-driven control valve used to regulate mixed-gas pressure in combined cycle power plant is introduced. The mathematic model for describing the dead-band characteristics of the electro-hydraulic servo-driven control valve is built. The effect of driving system leakage of the control valve on the performances of the control valve is analyzed. The results show that the dead band of the electro-hydraulic servo-driven control valve increases with the rise of the system leakage, the leakage affects the response rapidity and the control accuracy of the contr
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Zhang, Kai, Wan Li Li, Jian Li, and Zhang Ping You. "Electromagnetic Interference’s Effect on the Performance of Electro-Hydraulic Control System." Applied Mechanics and Materials 44-47 (December 2010): 1218–22. http://dx.doi.org/10.4028/www.scientific.net/amm.44-47.1218.

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The performance of engineering machinery and equipments will be affected under the environment of unstable electromagnetic fields. In the magnetic field, with focusing on the proportional solenoid of a certain engineering machinery hydraulic proportional control system, the internal changes of characteristics in the magnetic field lead to the changes of force output characteristics through output changes in air gap magnetic flux, and the instantaneous output performance is affected by electromagnetic interference. The electromagnetic environment’s effect on the changes of electro-hydraulic con
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Turdiboyev, Abduvali, Dilmurod Akbarov, Anvar Norboev, Kholiyor Sayyid Safarov, and Muxammedgaliy Mamutov. "Treatment of liquid fertilizer solutions by electrohydraulic effect and assessment of increasing the efficiency of plant nutrition." IOP Conference Series: Earth and Environmental Science 1420, no. 1 (2024): 012001. https://doi.org/10.1088/1755-1315/1420/1/012001.

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Abstract The article discusses the issue of increasing the efficiency of plant nutrition by treating liquid organic and mineral fertilizers with an electro-hydraulic effect. The amount of nitrates in water is reduced to 1.1 mg/l due to electro-hydraulic treatment. This creates the possibility of feeding plants and at the same time eliminating E. coli bacteria in liquid fertilizers from 2.23 mg/l. up to 102.7%, i.e. 82.55% compared to the control in exchange for its neutralization, which can prevent it from passing through the plant into the human and animal body, resulting in human health bein
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Yang, Chi Fu, Qi Tao Huang, and Jun Wei Han. "Singular Value Decomposition Control of Electro-Hydraulically Driven Parallel Robot." Applied Mechanics and Materials 121-126 (October 2011): 90–94. http://dx.doi.org/10.4028/www.scientific.net/amm.121-126.90.

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This paper presented a novel control scheme for electro-hydraulically driven parallel robot, in order to improve control performance by eliminating the effect of system coupling in controller. The mathematical model of the electro-hydraulic parallel robot is formulated, including mechanical system and electro-hydraulic system, using Kane method and hydromechanics principle. The decoupled space is exploited for electro-hydraulic parallel robot by using singular value decomposition (SVD) approach. In the decoupled space, a simple but effective controller is developed with only actuator position
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Liu, Huanlong, Dafa Li, Guanpeng Chen, Chixin Xie, Jiawei Wang, and Lei Feng. "Research on power coupling characteristics and acceleration strategy of electro-hydrostatic hydraulic hybrid power system." Proceedings of the Institution of Mechanical Engineers, Part I: Journal of Systems and Control Engineering 235, no. 8 (2021): 1445–59. http://dx.doi.org/10.1177/0959651820987729.

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Aiming at the adverse effect of the peak power of the electric motor of the battery-powered rail vehicles on the battery life and the driving range when starting or accelerating, a new type of electro-hydrostatic hydraulic hybrid powertrain is designed. This article proposes a novel power form that assists the vehicle to start or accelerate through two power coupling methods: torque coupling circuit and flow rate coupling circuit which have good power performance and energy-saving performance. A mathematical model for power coupling of hybrid power system is constructed, and the effects of key
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Jiangbo, Zhao, and Wang Junzheng. "The fractional order PI control for an energy saving electro-hydraulic system." Transactions of the Institute of Measurement and Control 39, no. 4 (2015): 505–19. http://dx.doi.org/10.1177/0142331215610184.

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In an electro-hydraulic system (EHS), the throttling phenomenon of the hydraulic valve leads to the problem of low utilization efficiency of hydraulic energy and severe increases in temperature. To alleviate this problem, this paper presents a type of one-chamber-controlled hydraulic circuit. In some applications where elastic load is dominant, this hydraulic circuit can achieve a significant energy-saving effect. For a valve-controlled system, the orifice non-linearity and the slowly varying parameter significantly influence the control performance of the electro-hydraulic system. With this a
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Zhou, Liming, Yihua Ma, Haiyan Zhou, et al. "Design and Test of Sowing Depth Measurement and Control System for No-Till Corn Seeder Based on Integrated Electro-Hydraulic Drive." Applied Sciences 13, no. 10 (2023): 5823. http://dx.doi.org/10.3390/app13105823.

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An electro-hydraulic profiling mechanism has been gradually applied to provide suitable downforce for a no-till row unit and to ensure the consistency of the seed sowing depth. In order to improve the control effect of the sowing depth system and solve the problems of a complex structure, scattered valve sets and equipment suitability of an existing electro-hydraulic row unit, this paper takes the 2BJ-470B no-till row unit as the carrier and innovatively designs an integrated pressure-reducing cylinder (IPRC) based on electro-hydraulic technology by analyzing the sowing depth control process o
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Sun, Chungeng, Jipeng Li, Ying Tan, and Zhijie Duan. "Proposed Feedback-Linearized Integral Sliding Mode Control for an Electro-Hydraulic Servo Material Testing Machine." Machines 12, no. 3 (2024): 164. http://dx.doi.org/10.3390/machines12030164.

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High-precision tracking of an electro-hydraulic servo material testing machine’s force control system was achieved using a proposed integral sliding mode control method based on feedback linearization to improve the machine’s force control performance and anti-interference ability. First, the electro-hydraulic servo system’s nonlinear mathematical model was established, and its input–output linearization was realized using differential geometry theory. Second, integral sliding mode control was introduced into the controller and the feedback-linearized integral sliding mode controller was desig
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Wang, Xiaojing, Guojia Man, and Mengjian Zhang. "Research on the leakage of continuous rotary electro-hydraulic servo motor based on fluid structure interaction analysis." Industrial Lubrication and Tribology 70, no. 3 (2018): 544–51. http://dx.doi.org/10.1108/ilt-03-2017-0064.

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Purpose Internal leakage is one of the key factors that influence the super-low speed performance of continuous rotary electro-hydraulic servo motor. Therefore, this paper aims to study the change rule of internal leakage for improving the low speed performance of motor. Design/methodology/approach The mathematical models of internal leakage of continuous rotary electro-hydraulic servo motor were established, and according to the working principle of the motor, the 3D models of internal leakage location were established. Simulation analysis was implemented on the continuous rotary electro-hydr
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Dissertations / Theses on the topic "Electro-hydraulic effect"

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Jleilaty, Subhi. "Control Architecture for Electro-Hydraulic Humanoid Robot." Electronic Thesis or Diss., université Paris-Saclay, 2024. http://www.theses.fr/2024UPAST010.

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Malgré les progrès significatifs réalisés jusqu'à présent dans le contrôle des robots humanoïdes, ceux-ci sont encore loin de présenter de manière fiable des comportements semblables à ceux des humains. Les différents éléments qui composent les humanoïdes contribuent à l'amélioration de leurs comportements. Alors que l'augmentation de la limitation physique contribue aux mouvements dynamiques, l'architecture de contrôle est la clé pour gérer ces mouvements et déterminer les capacités du robot afin d'améliorer ses comportements. Ce travail vise à développer une architecture de contrôle émulant
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Book chapters on the topic "Electro-hydraulic effect"

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Istanto, Iwan, Hyun-ho Kim, and Ill-yeong Lee. "Effects of Major Design Parameters on Three-Stage Electro-Hydraulic Servovalve Performance." In AETA 2016: Recent Advances in Electrical Engineering and Related Sciences. Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-50904-4_49.

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Minav, Tatiana, Lasse Laurila, and Juha Pyrhne. "Effect of an Electric Motor on the Energy Efficiency of an Electro-Hydraulic Forklift." In Energy Efficiency - A Bridge to Low Carbon Economy. InTech, 2012. http://dx.doi.org/10.5772/38796.

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Conference papers on the topic "Electro-hydraulic effect"

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Yao, Bin, George T. C. Chiu, and John T. Reedy. "Nonlinear Adaptive Robust Control of One-DOF Electro-Hydraulic Servo Systems." In ASME 1997 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 1997. http://dx.doi.org/10.1115/imece1997-1301.

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Abstract This paper intends to provide a theoretic framework for the high performance robust control of electro-hydraulic servo-systems. This is achieved through applying the recently proposed adaptive robust control (ARC) while taking into account the particular nonlinearities and model uncertainties of the electro-hydraulic servo-systems. In particular, the robust motion control of a typical electro-hydraulic servo-system will be considered. The system consists of an inertia load driven by a double rod cylinder regulated by a two-stage servovalve. The paper will consider the effect of both p
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Zheng, Lei, Anne Neville, Andrew Gledhill, and David Johnston. "Study of the Corrosion Behaviour of Nickel Tungsten Carbide in Some Water-glycol Hydraulic Fluids for Subsea Applications." In CORROSION 2009. NACE International, 2009. https://doi.org/10.5006/c2009-09198.

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Abstract Corrosion failures of components in electro-hydraulic control systems can have serious consequences for the operation of an entire subsea oil recovery system, especially in water depths more than 150 metres. One reason for this is that seawater ingress can have a great effect on stainless steel 316L, the most commonly used material for the failed components of the direction control valves, since chloride ions destabilize the passive film. Other materials, claimed to be seawater tolerant, are starting to be used in this system. However, problems can still exist due to the complex facto
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Zheng, Lei, Anne Neville, Andrew Gledhill, and David Johnston. "Investigation into the Corrosion Behaviour of Stainless Steel 316L in Hydraulic Fluids for Subsea Applications." In CORROSION 2008. NACE International, 2008. https://doi.org/10.5006/c2008-08236.

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Abstract Corrosion failures of components in electro-hydraulic control systems can have serious consequences for the operation of an entire subsea oil recovery system. The principal objective of this study is to assess the corrosion behaviour of the main material of construction used for the components in such systems (Stainless Steel 316L) in a range of commercial hydraulic fluids (Oceanic HW443, HW525, HW540, HT, EE1), all of which are water-based and mainly contain ethylene glycol as an antifreeze constituent [1] with some other additives such as sodium sulphonates, fatty acid esters, ester
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Kang, S., K. P. Hallinan, and R. Kashani. "Electro-Hydrodynamic Pumped Hydraulic Actuation." In ASME 1998 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 1998. http://dx.doi.org/10.1115/imece1998-0420.

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Abstract A new type of actuation device has been conceptualized that meets the needs of both large displacement, force and bandwidth within a package more compact than currently available magnetostrictive and stack-type piezo actuators of similar rating. This concept relies on micro-scale electrohydrodynamic (EHD) pumping of a dielectric liquid with a small concentration of free charges. Configured as an actuator, the EHD pump(s) would be used to move fluid between two reservoirs — each having a compliant membrane that interfaces to the world to provide the means to achieve vibration cancellat
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El Sayed, Mohammed A., and Saeid Habibi. "Inner-Loop Control for Electro-Hydraulic (EHA) Actuation Systems." In ASME 2009 Dynamic Systems and Control Conference. ASMEDC, 2009. http://dx.doi.org/10.1115/dscc2009-2586.

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This article presents the development of a multiple inner-loop control strategy for improving the performance of hydrostatic actuation systems. In these actuators, the presence of non-linearities associated with pump/motor static friction and backlash, pressure drop in the piping system, and nonlinear friction at the load have a significant effect on the performance and positional accuracy of the system. The effect of nonlinear friction at the pump/motor interface has been overcome by the use of a high gain pump-speed inner-loop control strategy. In this article, the concept of inner-loop cont
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Ishak, Norlela, Fatisyfina Julaihi, Nuzaihan Mhd Yusof, Mazidah Tajuddin, and Ramli Adnan. "Load effect studies on ARX model parameters of vertical position Electro-Hydraulic Actuator." In 2016 IEEE 12th International Colloquium on Signal Processing & Its Applications (CSPA). IEEE, 2016. http://dx.doi.org/10.1109/cspa.2016.7515850.

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Minav, T. A., P. A. Immonen, J. J. Pyrhonen, and L. I. E. Laurila. "Effect of PMSM sizing on the energy efficiency of an electro-hydraulic forklift." In 2010 XIX International Conference on Electrical Machines (ICEM). IEEE, 2010. http://dx.doi.org/10.1109/icelmach.2010.5608110.

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Banerjee, Priya, and Kamlesh Pandey. "Implementation of Failure Modes and Effect Analysis on the electro-hydraulic servo valve for steam turbine." In 2016 IEEE 1st International Conference on Power Electronics, Intelligent Control and Energy Systems (ICPEICES). IEEE, 2016. http://dx.doi.org/10.1109/icpeices.2016.7853559.

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Herranen, Mika, and Kalevi Huhtala. "Electro Hydraulic Gas Exchange Valve Actuation of 4-Stroke Large Bore Diesel Engine." In 8th FPNI Ph.D Symposium on Fluid Power. American Society of Mechanical Engineers, 2014. http://dx.doi.org/10.1115/fpni2014-7804.

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After several years of study, a large bore diesel engine Electro-Hydraulic Valve Actuation (EHVA) system has reached a development point where the system has been successfully used for years in laboratory test engine environment too. During the evolution of the EHVA, insight of the hydraulic and control systems features has been cleared. This paper concludes main findings and results of EHVA research in Tampere University of Technology / IHA. The hydraulic circuit effect to the power consumption of EHVA is clear. 3-way controlled actuator has advantages compared to 4-way controlled system. Dir
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Garimella, Phanindra, and Bin Yao. "Fault Detection of an Electro-Hydraulic Cylinder Using Adaptive Robust Observers." In ASME 2004 International Mechanical Engineering Congress and Exposition. ASMEDC, 2004. http://dx.doi.org/10.1115/imece2004-61718.

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This paper presents the application of an Adaptive Robust Observer (ARO) to the detection of some common faults that occur in hydraulic cylinder drive units such as the lack of sufficient supply pressure, reduced hydraulic compliance and excessive leakage of the hydraulic fluid. All of these faults could contribute to the reduced performance of the system and eventual complete failure. The inherent nonlinear system dynamics, severe parametric uncertainties and model uncertainties make fault detection in hydraulic systems difficult to implement in practice. To tackle these problems, the Adaptiv
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