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Journal articles on the topic 'Hydraulic drive system'

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1

Fatieieva, Nadiia, Oleksandr Fatyeyev, and Vladyslav Ponomarov. "ADVANTAGES OF USING HYDRAULIC EQUIPMENT OF MODULAR MOUNTING IN THE MODERNIZATION OF MACHINE HYDROSYSTEMS." Bulletin of the National Technical University "KhPI". Series: Hydraulic machines and hydraulic units, no. 1 (November 14, 2022): 33–41. http://dx.doi.org/10.20998/2411-3441.2022.1.05.

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With each passing year, automation schemes that use hydraulics are becoming more and more complex. With the large number of hydraulic devices in the scheme, replacing threaded connections with other methods of mounting becomes very important. The analysis of building and mounting of hydraulic drives and hydraulic units on the example of metal-cutting machines, namely: round saw and turret lathe. The analysis shows that the optimal variant of pipeless mounting of hydraulic drives is mounting with the use of modular and butt hydraulic equipment. The main advantages of modular mounting are: reduc
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2

Abdulaziz, Shermukhamedov, Astanov Bekzod, and Meliev Khudayor. "MATHEMATICAL MODEL OF DYNAMIC PROCESSES IN HYDRAULIC SYSTEMS." RESEARCH AND EDUCATION 2, no. 3 (2023): 116–24. https://doi.org/10.5281/zenodo.7793287.

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This article presents the developed mathematical model of a hydraulic drive with distributed parameters, taking into account wave processes, the flow regime of the liquid (laminar, turbulent), extreme operating conditions and a model of thermal processes in a flow hydraulic system. These models allow us to study the dynamic characteristics in the hydraulic drive, to determine the changes in the temperature of the liquid depending on the level of circulation in the flow system.
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3

LYANDENBURSKY, V. V., A. S. IVANOV, and N. I. SERGEEV. "DIAGNOSTICS OF THE HYDRO SYSTEM OF TRANSPORT AND TECHNOLOGICAL MACHINES." World of transport and technological machines 1(82), no. 3 (2023): 3–11. http://dx.doi.org/10.33979/2073-7432-2023-3-1(82)-3-11.

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The article considers a method for ensuring the control of hydraulic units by control points of the hydraulic drive during transients. A refined mathematical model of the processes of pressure change in closed cavities of hydraulic drives depending on the technical condition of the hydraulic drive and hydraulic distributor is proposed. A device developed on the basis of Arduino electronic boards is presented, which allows the master diagnostician to present the necessary amount of information about the diagnostic parameters on the monitor to prepare a conclusion on the technical condition of t
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4

Veselovska, Natalia, Volodymyr Rutkevych, Serghiy Shargorodskiy, Vitalii Yaropud, and Ihor Kupchuk. "Simulation Modeling of the Adaptive System for Hydraulic Drives of a Stalk Forage Separator." Journal of Engineering Sciences 12, no. 1 (2025): F8—F17. https://doi.org/10.21272/jes.2025.12(1).f2.

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The article aims to increase the accuracy of the block-portioned stem feed separator, reducing unproductive power losses and dynamic loads in the hydraulic drive of the separator by developing scientific fundamentals based on nonlinear mathematical models and adaptive hydraulic drive systems. The research uses simulation modeling to design an energy-efficient hydraulic drive for a stem feed separator from trench storage. The proposed approach allowed for avoiding significant capital investments to manufacture a prototype. A detailed description of the physical model was carried out. It allowed
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5

Polishchuk, Leonid, Oleh Piontkevych, Mykola Burdeinyi, and Vadym Trehubov. "Justification for choosing the type of belt conveyor drive." Journal of Mechanical Engineering and Transport 19, no. 1 (2024): 115–22. http://dx.doi.org/10.31649/2413-4503-2024-19-1-115-122.

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The designs and dynamic properties of electromechanical and hydraulic drives for a belt conveyor have been analyzed to justify their selection. The main advantages and disadvantages of their operation have been formulated. It has been established that the hydraulic drive has advantages compared to the electromechanical one for installation in a built-in drive for a belt conveyor. The design features and principles of operation of these drives have been described. Calculation schemes have been developed for the electromechanical and hydraulic drives of the belt conveyor. A mathematical model of
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6

Wang, Hua Bing, and Jun Ke Hu. "Durability Testing System with Power Recycle for the Variable Displacement Closed-Loop Hydraulic Pumps." Applied Mechanics and Materials 241-244 (December 2012): 1333–37. http://dx.doi.org/10.4028/www.scientific.net/amm.241-244.1333.

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A testing system scheme with power recycle for hydraulic pumps’ durability is present, which is based on a hydraulic motor with hydraulicly overridden pressure compensation. The hydraulic motor can adaptively adjust its displacement to meet the demand of displacement match of the power feedback in the system. The system pressure can be set by adjusting the starting control pressure of the motor. The rotating speed of the pump is guaranteed by the control of the driven electrical motor. A hydraulic bridge unit is used to guide the flow from the outport of the pump to the fixed inlet port of the
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7

Rutkevych, Volodymyr, Serhiy Shargorodskiy, Vitaliy Kushnir, and Oleksandr Ostapchuk. "DETERMINATION OF THE RANGE OF SPEED REGULATION OF WORKING BODIES OF THE MECHANISM FOR SEPARATION OF STEM FEEDS BY MATHEMATICAL MODE." ENGINEERING, ENERGY, TRANSPORT AIC, no. 2(117) (August 30, 2022): 135–45. http://dx.doi.org/10.37128/2520-6168-2022-2-14.

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The issue of increasing the efficiency and reducing the energy consumption of the technological operation of unloading stem fodder (silage and haylage) from trench storage by block-batch method, due to the development and justification of parameters and modes of operation of the adaptive hydraulic drive system. Recommendations for determining the range of speed control of the working bodies of the mechanism for separation of stem forages on the basis of the developed system of hydraulic actuators of the separator mechanism with maintenance of energy saving mode of the pumping station and inves
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8

Trukhanov, K. A. "CALCULATION OF THE MAIN ELEMENTS OF HYDRAULIC AUTOMATION OF SUBSEA X-TREE." Spravochnik. Inzhenernyi zhurnal, no. 339 (June 2025): 67–78. https://doi.org/10.14489/hb.2025.06.pp.067-078.

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At the designing a hydraulic system of Subsea X-Tree (Subsea XT), it is necessary to determine the parameters of all actuators and control devices (elements of hydraulic automation) of the hydraulic system, and also to confirm that the designed elements of hydraulic automation and the hydraulic system as a whole are reliable and safe and meet operational requirements in all modes of operation of hydraulic drives and in their mutual influence on each other during their joint operation. The article considers the issues of creating a mathematical model of Subsea XT drives, calculating and selecti
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9

Khristoforov, Evgeniy, Nataliya Sakovich, and Aleksandr Kuznecov. "SAFETY SUPPORT IN TRANSPORT CONSTRUCTION MACHINERY WITH HYDRAULIC DRIVE." Bulletin of Bryansk state technical university 2021, no. 7 (2021): 38–49. http://dx.doi.org/10.30987/1999-8775-2021-7-38-49.

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Work purpose: the investigation of transport process safety in construction industry of the Bryansk region, the substantiation of reasons, factors and circumstances of accidents in the construction companies of the region, the substantiation of the impact of hydraulic drive unit failures upon safety of transport construction machinery with the hydraulic drive with the purpose of driver safety. 
 Investigation problem: on the basis of the obtained results of the safety investigations of transport processes, reasons defined, revealed injury factors of drivers during the operation of the loa
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10

INOGUCHI, Rikiya, Kazuhisa ITO, and Shigeru IKEO. "Pure-Hydraulic Hybrid Cylinder Drive System with Hydraulic Transformer." JFPS International Journal of Fluid Power System 5, no. 1 (2012): 1–5. http://dx.doi.org/10.5739/jfpsij.5.1.

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11

Lagerev, Alexander V., Vladimir I. Averchenkov, and Elena A. Lagereva. "Prediction of kinetics of dependability indices hydraulic drive of load-haul-dump machines simulation-based flow of element failures." Vestnik Bryanskogo gosudarstvennogo tekhnicheskogo universiteta, no. 2 (June 30, 2012): 8–16. https://doi.org/10.5281/zenodo.1302021.

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The mathematical model and the method of predicting changes in the operation time of reliability indicators of hydraulic drives for General purpose hoisting and transport machines are presented. A graph of possible states and their connecting transitions in the operation of periodically repaired hydraulic drive is proposed. A system of ordinary differential equations of order I of Kolmogorov is constructed to determine the probability of finding the hydraulic drive at an arbitrary time of operation in all possible states. The solution of the system of equations adequately characterizes the kin
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12

SIWULSKI, TOMASZ, URSZULA WARZYNSKA, KATARZYNA PANOWSKA, and MATEUSZ WOLTER. "IMPROVING THE EFFICIENCY OF A ROCK BREAKER HYDRAULIC WORKING SYSTEM BY CHANGING THE STRUCTURE OF THE HYDRAULIC SYSTEM." MM Science Journal 2022, no. 3 (2022): 5738–47. http://dx.doi.org/10.17973/mmsj.2022_10_2022067.

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The amount of energy losses in hydraulic systems, determined directly by the efficiency parameter, becomes one of the basic aspects related to the design of these systems. Recently, reducing the energy consumption of hydraulic drives has become one of the most important factors in, and sometimes even the main reason for, development works focused on hydrostatic drive systems in newly designed and already deployed types of machines. The article presents an approach to improve the efficiency of such a hydraulic system based on the analytical model and also includes a case study of redesigning a
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13

Cao, You Hui, Jin Liu, Li Fu Shao, Fei Liu, and Wen Qun Xu. "Intelligent Driver Designing for Electro-Hydraulic Proportional Valve of Engineering Machine." Advanced Materials Research 562-564 (August 2012): 1108–12. http://dx.doi.org/10.4028/www.scientific.net/amr.562-564.1108.

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Intelligent driver based on C8051F500 and TLE7242-2G for electro-hydraulic proportional valve was designed in this paper. The driver has CAN interface, and can drive four channel electro-hydraulic proportional valves. The system scheme, power unit, MCU unit, drive unit and software were analyzed in detail. At last the system performance was simulated with MATLAB. The Intelligent driver is suit for modern engineering machine’s control system, which demands networking and distributed control.
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14

Dindorf, Ryszard Filip. "Functional Safety of the Hydraulic Drive Control System of a Tracked Undercarriage." Archives of Automotive Engineering – Archiwum Motoryzacji 103, no. 1 (2024): 21–37. http://dx.doi.org/10.14669/am/178310.

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In the study, the functional safety of the hydraulic drive control system of a tracked undercarriage used as a mobile platform for a robotic bricklaying system (RBS) was evaluated. Hazards and risks caused by the hydraulic drive control system of the rubber track undercarriage were identified. The schematic diagram and main components of the conventional hydraulic drive control system of a tracked undercarriage are presented. The functions and parameters of the components of the hydraulic power and control system are discussed. In a conventional hydraulic drive, the safety function is fulfille
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15

Shargorodskiy, Serhiy, Volodymyr Rutkevych, and Evhenyy Yaschcuk. "MATHEMATICAL MODELING OF THE HYDRAULIC DRIVE OF THE SECTIONS OF A WIDE-COLLECTING CULTIVATOR WITH SEQUENTIAL ACTIVATION OF HYDRAULIC CYLINDERS." ENGINEERING, ENERGY, TRANSPORT AIC, no. 4(115) (December 24, 2021): 148–58. http://dx.doi.org/10.37128/2520-6168-2021-4-17.

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The publication discusses the issues of mathematical modeling of dynamic processes occurring in a complex hydromechanical system of the hydraulic drive of the wide-cut cultivator sections with consistent wear of the hydraulic cylinders. The analysis of known designs of wide-cutting tools and agricultural units is carried out. It is noted that one of the tendencies in the development of domestic agricultural engineering is an increase in the width of coverage of tillage machines. In this regard, hydraulic drives for decomposition and assembly of sections of these machines are widely used. The u
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16

Zhang, Ji Ping, Xin Ping Han, Shi Jin Ma, and Jing Cheng Zhang. "Full Hydraulic and Control Systems Application in Open-Cut Mine Drill." Applied Mechanics and Materials 318 (May 2013): 91–95. http://dx.doi.org/10.4028/www.scientific.net/amm.318.91.

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The LWD-200B full hydraulic open cut mine drill's hydraulic system uses a variable displacement pump with load sensing constant power, load sensitive electromagnetic proportional multi-way directional valve, high torque hydraulic motor overhead direct drive rotary head, a long stroke hydraulic cylinder and steel wire rope and pulley speed lifting system, hydraulic cylinder to drive the unloading rod mechanism, hydraulic motor driving crawler, double hydraulic cylinder lifting the drill frame mechanism, a hydraulic motor driven cable winding drum, hydraulic legs leveling method. Control system
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17

KOSUGI, Akira, Mizuho NAKAMURA, Shigenobu SUZUKI, Masanobu CHIBA, and Keigo HARA. "Research on Interlock System in Hydraulic drive system." Proceedings of Mechanical Engineering Congress, Japan 2016 (2016): G1700203. http://dx.doi.org/10.1299/jsmemecj.2016.g1700203.

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18

Ivanov, Konstantin Samson, and Baurjan Tultayev. "Adaptive Hydraulic Drive of Manipulator." Applied Mechanics and Materials 841 (June 2016): 215–20. http://dx.doi.org/10.4028/www.scientific.net/amm.841.215.

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At present in manipulators the hydraulic drives with one degree of freedom are used. Such drive provides single-valued function of constraint between input and output links motion. However for overcoming of variable force of resistance it is necessary to use the variable transfer ratio between input and output links. The adjustable drive should contain the controlled gear box. Such drive contradicts the demand of minimization of weight and sizes of modules of the manipulator. Use of electronic control systems for force regulating leads to extreme complication of drives, decrease in their relia
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19

Zhang, Chengliang, Changpu Li, Chunzhao Zhao, Lei Li, Guanlei Gao, and Xiyuan Chen. "Design of Hydrostatic Chassis Drive System for Large Plant Protection Machine." Agriculture 12, no. 8 (2022): 1118. http://dx.doi.org/10.3390/agriculture12081118.

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In order to meet the working performance of large plant protection machine and according to the actual working requirements, this paper proposes a design of hydrostatic chassis drive system for a large plant protection machine. The purpose of this study is to realize the anti-slip rotation function of the plant protection machine and improve the driving stability through the combination of a hydraulic drive system and shunt valve. In this study, a closed circuit with a single pump and four motors is used, and a diverter valve is used to prevent the wheels from skidding during the driving of th
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20

Li, Shigang, Dandan Liu, and Bin Xie. "The Control System Design of Hydraulic Hybrid Vehicle Based on CAN Bus." Open Mechanical Engineering Journal 8, no. 1 (2014): 739–43. http://dx.doi.org/10.2174/1874155x01408010739.

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The hybrid vehicle is a new type of green and energy efficient vehicle. Hydraulic accumulator and variable pump/motor make up the break energy regeneration utilization system, which is the core of hydraulic auxiliary driving unit. The hybrid drive system is composed of hydraulic auxiliary driving unit and the original vehicle drive system. As it relates to the recovery of the braking energy and the situation of two kinds of power-driven vehicle, it brings complexity to the hybrid distribution strategy, and an efficient energy control system is necessary. Based on CAN bus technology, using the
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21

Xing, Pu, Shi Lin Luo, Cun Bo Liu, and Cong Feng Tian. "Simulation of Hydrostatic Drive System of Crawler Bulldozer." Advanced Materials Research 243-249 (May 2011): 6178–82. http://dx.doi.org/10.4028/www.scientific.net/amr.243-249.6178.

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According to the hydraulic driven system working principle of crawler bulldozer, the simulation model of electro-hydraulic proportional control driven system was established by using AMESim, and the simulation was carried out. The simulation result indicates that using feedback regulation in control of hydraulic motor of driven system, the system pressure stay in a relatively stable state, which is conducive to the efficient operation system. As the load increasing suddenly, the system pressure volatile during the volume of hydraulic motor changing. However, steady state can be quickly restore
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22

Devisilov, V., and E. Sharai. "Hydrodynamic filters in hydraulic fluid cleaning system of hydraulic drive." IOP Conference Series: Materials Science and Engineering 492 (March 13, 2019): 012025. http://dx.doi.org/10.1088/1757-899x/492/1/012025.

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23

Jozef Krilek, Jozef, Jan Kovach, Tomash Kuvik, and Lucia Dobrotova. "Analysis of the hydraulic oil to drive band sawmill." Scientific Bulletin of UNFU 29, no. 10 (2019): 89–92. http://dx.doi.org/10.36930/40291018.

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Transport and material handling is a sum of technological processes in the wood-processing industry. Hydraulic drives are one of the drive options used as a basic part of the transport – handling machines. Contamination control involves preventing contaminants from entering a hydraulic system and placing filters in strategic locations throughout the system to trap any contaminants to find their way into the fluid. But for critical equipment, a successful contamination control program must also include regular assessment of the hydraulic fluid cleanliness. It must be often done every two to six
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Shi, Yuanling, and Pingsong Zhang. "Modeling and Dynamic Performance Analysis of Hydraulic Top Drive Main Transmission System with Long Hydraulic Pipelines." Geofluids 2022 (April 16, 2022): 1–15. http://dx.doi.org/10.1155/2022/1304176.

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Hydraulic top drive is the main power component used to drive drilling tools rotating to drill a hole for drilling rigs. Its main transmission system was built with hydraulic power source and hydraulic actuators. During the drilling procession, the hydraulic top drive is mounted on a derrick, and moving along its vertical guide rails. The hydraulic power station is usually placed on the drilling platform or the ground. In that way, long pipelines are needed to connect the hydraulic pumps and hydraulic motors. Thus, the effects on the performance of hydraulic top drive should not be neglected.
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25

Yue, Jing Tao, Hui Pu, and Xiao Jun Wei. "The Transitional Simulation of Self-Propelled Winch System by the AMESim." Applied Mechanics and Materials 687-691 (November 2014): 228–31. http://dx.doi.org/10.4028/www.scientific.net/amm.687-691.228.

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The self-propelled winch system was studied taking the 20-ton transitional self-driven winch system as the engineering background. By the analysis of structural characteristics, control loops, speed solutions and hydraulic motor-driven forms of winch hydraulic system, The system of mathematical models was established which lay the foundation of the establishment of system simulation model. The walking hydraulic drive system simulation models were established by using AMESim software. On this basis, by setting different parameters, the simulation system operating conditions are simulated, which
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26

Rutkevych, Volodymyr. "INVESTIGATION OF TRANSITIONAL PROCESSES IN THE ADAPTIVE SYSTEM OF HYDRAULIC DRIVES OF THE MECHANISM FOR CUTTING AND UNLOADING STALK FODDER." Vibrations in engineering and technology, no. 2(101) (June 29, 2021): 107–14. http://dx.doi.org/10.37128/2306-8744-2021-2-12.

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The problem of creating an energy-efficient and competitive mechanism for cutting and unloading stalk fodder from trench storage, by developing and justifying the parameters and modes of operation of the adaptive system of hydraulic drives of the mechanism is researched. The principal implementation of the adaptive system of hydraulic drive of the mechanism for cutting and unloading is proposed, in which a spool flow divider is placed between two executive hydraulic motors, which allows to regulate the supply of a U–shaped frame according to the load change which affects the cutting mechanism.
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27

Xu, Ming, Xiao-meng Wu, Xin Yu, and Guo-jin Chen. "Dynamic performance of auxiliary hydraulic power unit based electro-hydraulic variable speed drive system." Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science 232, no. 16 (2017): 2926–36. http://dx.doi.org/10.1177/0954406217727770.

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Inability of dynamic performances, especially the acceleration response, strongly inhibits the application of electro-hydraulic variable speed drive, even though its intrinsic energy-saving potential. In contrast to variable speed drive, the valve-controlled actuator system shows the capacity of fast response and accurate control precision, but it consumes more energy. The controllable auxiliary power unit based electro-hydraulic variable speed drive system is probably a solution to enhance dynamic performance of variable speed drive on the basis of energy-saving. Except for the principal vari
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28

Milecki, Andrzej, Arkadiusz Jakubowski, and Arkadiusz Kubacki. "Design and Control of a Linear Rotary Electro-Hydraulic Servo Drive Unit." Applied Sciences 13, no. 15 (2023): 8598. http://dx.doi.org/10.3390/app13158598.

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In this paper, a new solution for an electro-hydraulic servo drive is proposed, which consists of two electro-hydraulic servo drives: one with a hydraulic cylinder and one with a hydraulic rotary motor. In the proposed drive, the linear actuator is attached to a horizontal base and the hydraulic motor is mounted on the actuator piston rod. Thus, the output signal of the drive is the lifting and lowering of the element suspended on the rope. The paper describes the structure, kinematics, dynamics, and control of a novel electro-hydraulic servo drive. A servo valve and a proportional valve are u
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29

Ayupova, D. А., D. A. Kuderko, V. A. Tselishchev, and V. V. Shaidakov. "Digital model of hydraulic drive for solar tracker rotary control." Safety and Reliability of Power Industry 17, no. 1 (2024): 34–41. http://dx.doi.org/10.24223/1999-5555-2024-17-1-34-41.

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An important area in the field of solar energy is considered, focusing on the use of a hydraulic drive in high-power solar trackers. In the context of the relevance of environmental problems and the commitment to energy efficiency, the role of solar trackers in increasing the productivity of solar power plants is investigated. An analysis of current trends in the field of hydraulic drive is presented, highlighting the prospects for its application. The analysis of the directions of improvement of the drives of the solar tracker is carried out. The hydraulic drive of the tracker is considered a
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Zhang, Zhu Xin, and Tuo Jia. "Direct-Drive Differential Volume Control Electro-Hydraulic Servo Control System." Applied Mechanics and Materials 433-435 (October 2013): 991–94. http://dx.doi.org/10.4028/www.scientific.net/amm.433-435.991.

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Direct-drive volume control electro-hydraulic servo control system, derivation model of single-rod hydraulic cylinder system, pointed out that when the reciprocating motion characteristics are inconsistent. In order to solve this problem, proposed direct-drive differential volume control electro-hydraulic servo system design of its control system and analysis of system models. Through theoretical analysis, validate this proposed direct-drive bad dynamic volume control system, symmetric dynamic performance, improving control system reliability.
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31

Popov, A. Y. U. "Simulation modeling of the volumetric hydraulic drive." Traktory i sel hozmashiny 85, no. 3 (2018): 45–53. http://dx.doi.org/10.17816/0321-4443-66397.

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In the design of a variety of the modern agricultural machines, the hydraulic drive with reciprocating motion for lifting, lowering and moving the working bodies has obtained a wide application. One of the important stages in the design of hydraulic drives and transmissions is a simulation. In connection with the laboriousness of carrying out the full-scale experiment and the cumbersome calculation of mathematical models of hydrosystems, as well as the development of the computing machinery, the simulation modeling has obtained a widespread usage. This type of computer simulation allows to inv
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32

Kurochkin, Anton, Vladimir Vagin, Anton Karpesh, and Natalja Dyorina. "Control system for electrohydraulic drive of a mobile sinking hoisting plant." MATEC Web of Conferences 224 (2018): 02009. http://dx.doi.org/10.1051/matecconf/201822402009.

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The article presents the results of the control system development for the electro hydraulic drive of a mobile sinking hoisting plant. Increasing the technical performance of mobile sinking hoisting plants is possible by increasing their productivity, reducing their massiveness and increasing the durability of tractional organs and a number of units and parts of lifting machines. However, the increase in productivity, in its turn, causes the need to increase the suspended load on the traction organs, which causes a significant increase of the dynamic loads in the elastic elements in the transi
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33

Pimonov, Ihor, Andriy Yefimenkо, Denis Zhuk, and Volodymyr Prykhodko. "Determination of diagnostic errors in the system of diagnostic parameters of hydraulic drives of construction and road machinery." Bulletin of Kharkov National Automobile and Highway University, no. 99 (December 29, 2022): 62. http://dx.doi.org/10.30977/bul.2219-5548.2022.99.0.62.

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Problem. The article considers the issue of increasing the efficiency of operation of construction machines by improving systems of measures that provide an effective system for diagnosing hydraulic drive elements. The considered existing methods prove that a more effective determination of indicators of diagnostic parameters in a system with the error of the diagnostic devices themselves for diagnosing hydraulic drives of construction and road machines will be the equipment that gives the necessary result with lower overall costs for diagnostics with minimal costs, including the cost of diagn
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34

John A. Collier and David M. McLaughlin. "A Diesel-Hydraulic Oyster Harvester Drive System." Applied Engineering in Agriculture 3, no. 2 (1987): 143–44. http://dx.doi.org/10.13031/2013.26661.

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35

Ivanov, Alexander Semenovich, Nikita Ilyich Sergeev, and Vladimir Vladimirovich Lyandenburskii. "SOFTWARE FOR DIAGNOSIS OF HYDRAULIC SYSTEMS OF TRANSPORTATION AND TECHNOLOGICAL MACHINES." World of transport and technological machines 1(84), no. 1 (2024): 94–101. http://dx.doi.org/10.33979/2073-7432-2024-1-1(84)-94-101.

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When operating working machines, this can be done using software to obtain the most accurate information about the technical condition of hydraulic drives. this will provide the ability to manage their technical condition using methods of prediction and timely elimination of failures and malfunctions. For complex systems, such as modern hydraulic drives, it is very important to develop technol-ogies for monitoring the condition of the working elements of the hydraulic drive and identifying faults in hydraulic system units, which make it possible to improve technological discipline while increa
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36

Wang, Hong. "Hydraulic System Design for Hexagon Workpiece Flipping Equipment." Advanced Materials Research 228-229 (April 2011): 719–22. http://dx.doi.org/10.4028/www.scientific.net/amr.228-229.719.

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Workpiece flipping equipment is widely used in hexagon workpiece multi face and work station processing. Hydraulic drive has advantages of easy linear motion achivement, high power quality ratio and rapid dynamic response, etc. It is an essential element of modern mechanical engineering and one of the key technologies of engineering controls. Hydraulic drive system of the hexagon workpiece flipping equipment was designed, the hydraulic system schematic was drawn, its working principle was analysed. The workpiece flipping was successfully achieved by using hydraulic technology, it obtained good
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37

Linjama, Matti. "Variable speed digital hydraulic transformer–based servo drive." Proceedings of the Institution of Mechanical Engineers, Part I: Journal of Systems and Control Engineering 234, no. 3 (2019): 287–98. http://dx.doi.org/10.1177/0959651819869145.

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This article studies a digital hydraulic servo drive driven by a variable speed electric servomotor. Digital displacement control is implemented by using a two-port digital hydraulic power management system having six pistons and 18 on/off control valves. The first port of the digital hydraulic power management system controls the cylinder speed, while the second port is connected to a hydraulic accumulator. The peak power is taken from the accumulator, and the electric servomotor supplies only the average power into the system. An experimentally validated simulation model is used, and the res
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Huang, Guo Qing, Yu Chen, and Jin Yu. "Simulation Analysis in Cylinder Hydraulic Synchronous Control System of Main Drive System of Heavy Forging Hydraulic Press." Advanced Materials Research 765-767 (September 2013): 1899–902. http://dx.doi.org/10.4028/www.scientific.net/amr.765-767.1899.

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An overly large passive synchronization system will be needed in a Heavy forging hydraulic press while entirely relying on passive compensation. And it will increase developing and maintain costs of the equipment. Therefore the main drive system should be considered. The paper developed mathematical model of the cylinder of the main drive system from the perspective of the main drive system of the heavy forging hydraulic press; the eccentric load points, load size and speed of moving beam are the three major factors that influence the synchronization of cylinders. Synchronous Controller was li
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39

Wang, Jiahui. "Hydraulic Synchronization Control Research Status and Outlook." Journal of Engineering Research and Reports 26, no. 8 (2024): 458–70. http://dx.doi.org/10.9734/jerr/2024/v26i81258.

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With the hydraulic synchronization control system in the industrial field of application is gradually widespread, synchronization control research is also more and more attention. Based on this background, this paper combines the current research status of hydraulic synchronization control system, from three aspects of the hydraulic synchronization system to discuss: 1) hydraulic synchronous drive system: analysis of the mechanical rigid synchronous drive system, hydraulic balance synchronous drive system, electro-hydraulic servo synchronous drive system three kinds of control, and summarize t
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40

Zhu, Chenhui, Hongmei Zhang, Wanzhang Wang, Kang Li, and Wanru Liu. "Robust control of hydraulic tracked vehicle drive system based on quantitative feedback theory." International Journal of Distributed Sensor Networks 16, no. 2 (2020): 155014772090783. http://dx.doi.org/10.1177/1550147720907832.

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To improve the control precision of the drive system of hydraulic tracked vehicles, we established a mathematical model of the drive system based on the analysis of structural characteristics of the high-clearance hydraulic tracked vehicles and the dual-pump dual-motor drive system and developed a control strategy based on the quantitative feedback theory. First, the mutual independence of the two motor channels was achieved through channel decoupling. Then, the loop-shaping controller and the pre-filter were designed for the two channels. The result of a simulation experiment indicates that t
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41

Yang, Yong, and Qian Lin Chen. "Modeling and Analysis of Full Hydraulic Pressure Drive System of the Wheel Loader Based on AMEsim." Applied Mechanics and Materials 397-400 (September 2013): 261–65. http://dx.doi.org/10.4028/www.scientific.net/amm.397-400.261.

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The characteristics of traditional load sensitive system and the control system of electric hydraulic flow matching are introduced comparatively. In order to improve the energy saving and the overall control performance of wheel loader, Electro-hydraulic flow matching control system is adopted. In the meantime, the machine-liquid walking institution in the traditional sense is changed into full hydraulic pressure drive institution by using the module modeling way, which omits the "double" system including the hydraulic torque converter and the transmission constitute, simplifies the chassis st
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42

Zhang, Zeng Meng, Yong Jun Gong, and Jiao Yi Hou. "Drive Characteristic Analysis and Test System Design for Water Hydraulic Artificial Muscle." Applied Mechanics and Materials 511-512 (February 2014): 737–42. http://dx.doi.org/10.4028/www.scientific.net/amm.511-512.737.

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Performance tests and drive experiments play an important role in researches on water hydraulic artificial muscles. A test system is designed to analyze the drive characteristic of the developed water hydraulic artificial muscle. Through simulation getting main parameters, the hydraulic circuit to regulate the pressure of the water hydraulic artificial muscle and a proportional control loading system are built. The pressure control and drawing force regulation in the loading system for muscles with different diameter and length are provided by the designed test system. The experimental results
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43

Shargorodskiy, Serhiy, and Volodymyr Rutkevych. "INFLUENCE OF PHYSICAL AND MECHANICAL PROPERTIES OF STEM FEED AND DESIGN OF THE WORKING BODY ON THE DRIVE POWER OF THE CUTTING MECHANISM." ENGINEERING, ENERGY, TRANSPORT AIC, no. 2(113) (June 29, 2021): 38–49. http://dx.doi.org/10.37128/2520-6168-2021-2-5.

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The paper considers the problem of reducing the drive power of the mechanism for separating stalk feed from trench storages by the batch method by developing and substantiating the parameters and operating modes of the hydraulic drive system. The structure and principle of construction of a system of hydraulic drives of the mechanism for separating a portion of stem feed are proposed. This will significantly reduce the power of the used hydraulic motors by simultaneously controlling the cutting speed of the monolith of stem feed and the feed of the cutting device. The analysis of changes in th
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Trukhanov, K. A. "Transients in hydraulic drive of a fan for engine cooling system of a vehicle." Izvestiya MGTU MAMI 7, no. 1-1 (2013): 195–204. http://dx.doi.org/10.17816/2074-0530-68326.

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The article describes the mathematical model and the calculation of the transients in designed hydraulic drive of a vehicle cooling system. There is presented the verification of the mathematical model using results of test of hydraulic drive specially built for designed system. The author carried out the comparison of the calculated pressure transients with other ones obtained during the test of prototype of hydraulic drive for cooling of vehicle engine.
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Qu, Jin Yu, Yi Rui Zhang, Gui Xian Qu, and Lin Liu. "Design of Automatic Clutch System and Simulation of Engagement Process for AMT." Applied Mechanics and Materials 69 (July 2011): 67–72. http://dx.doi.org/10.4028/www.scientific.net/amm.69.67.

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In this paper the executive mechanism and electric-hydraulic control system for AMT automatic clutch were designed. A hydraulic cylinder was applied as the actuator. The hydraulic source with constant pressure using electric oil pump was designed. The basic idea lies in using pulse signal with variable duty cycle to drive high-speed solenoid valves in the process of regulating hydraulic circuits. Hydraulic oil drives the cylinder to realize the control of dry clutch. At last, the actuator was modeled and simulated based on AMESIM. From the analysis of the simulation results, the system mention
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46

Chiriță, Alexandru-Polifron, Adriana-Mariana Borș, Radu-Iulian Rădoi, Ionaș-Cătălin Dumitrescu, and Ana-Maria Carla Popescu. "Leveraging Additive Manufacturing and Reverse Engineering for Circular Economy-Driven Remanufacturing of Hydraulic Drive System Components." Applied Sciences 13, no. 22 (2023): 12200. http://dx.doi.org/10.3390/app132212200.

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In response to the imperative of sustainability and resource efficiency, this article introduces an innovative framework for the remanufacture of hydraulic drive system components, firmly rooted in the tenets of the circular economy. This method mixes cutting-edge additive manufacturing technologies, meticulous 3D scanning techniques, and the rigorous discipline of reverse engineering to rebuild active elements within hydraulic drive systems. Fundamental to this framework is a resolute commitment to the repurposing of non-defective components, fostering a closed-loop system that systematically
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47

Yalyna, Olga. "RESEARCH OF OPERATING MODES OF A PULSE HYDRAULIC DRIVE OF WORKING BODIES OF AGRICULTURAL MACHINERY." Herald of Khmelnytskyi National University. Technical sciences 309, no. 3 (2022): 111–14. http://dx.doi.org/10.31891/2307-5732-2022-309-3-111-114.

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Hydraulic systems are used in almost all branches of agricultural machinery. They are widely used in production – for example, in foundry machines, presses, heavy manipulators, machine tools, works, molding machines for plastics. They play an important role in the operation of equipment designed for the mining and oil industry, in rescue equipment. And, of course, one of the widest areas of application for hydraulics is various kinds of special equipment: excavators and cranes, loaders, aerial platforms, agricultural, warehouse and many other types of machines. The use of hydraulic systems is
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48

Long, Ze Ming, Bao Jun Zhang, and Shi Qing Guo. "Control Strategy for Hydraulic Hybrid Servo Drive System of Heavy Load Robot." Materials Science Forum 800-801 (July 2014): 521–25. http://dx.doi.org/10.4028/www.scientific.net/msf.800-801.521.

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A kind of compound servo drive system is designed using the characteristics of hydraulic motor large torque and servo motor high accuracy positioning. Proportional pressure valve, proportional flow valve and electromagnetic directional valve was used to control hydraulic motor for tracking servo motor drive control and to achieve servo motor control for weight load of large torque and high accuracy positioning. Pressure, speed control strategy of using PID control is proposed based on the above hydraulic tracking drive system, achieve precise control for trajectory of robot articulated arm und
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Dumitrescu, Liliana, Polifron Alexandru Chiriţă, Corneliu Cristescu, Ioan Lepădatu, and Evelin Laza. "Theoretical analysis of the dynamics of a nacelle drive system in order to optimize the system energy." E3S Web of Conferences 112 (2019): 04003. http://dx.doi.org/10.1051/e3sconf/201911204003.

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The paper presents the hydraulic system for the operation of a lifting platform in two constructive variants. One of the drive schemes is with energy recovery. A hydraulic, energy and economic analysis is performed for the two proposed drive schemes using the numerical simulation technique. The conclusions are useful in design and exploitation. The platform can be used for various applications in agricultural farms or construction.
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Rutkevych, Volodymyr, Vitalii Yaropud, Igor Kupchuk, and Oleksandr Ostapchuk. "SIMULATION MODELING AND RESEARCH WORKS OF THE HYDRAULIC DRIVE OF THE STEM SEPARATOR FEED FROM TRENCH STORAGE." Vibrations in engineering and technology, no. 3(102) (September 28, 2021): 88–99. http://dx.doi.org/10.37128/2306-8744-2021-3-10.

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The issue of accelerated creation of efficient and energy-saving hydraulic drive of stem forage separator from trench storages by simulation modeling of technical systems. It is noted that the use of simulation allows to avoid significant investments required for the manufacture of a prototype of an agricultural machine, provided a detailed study physical model of the hydraulic drive of the stem feed separator. And also allows you to check the adequacy of the results obtained in process of mathematical modeling, and determine the necessary improvement of the proposed hydraulic drive. A fundame
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