Refined modeling and experimental verification of a torque motor for an electro-hydraulic servo valve

Chen, Zhichuang; Ge, Shenghong; Jiang, Yulei; Cheng, Wen‐Hao; Zhu, Yuchuan

doi:10.1016/j.cja.2023.01.014

Cited by 4 publications

(2 citation statements)

References 20 publications

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“…The results of the research on the dependence of moment on the magnetic flux presented in [13] take into account the resistance of the magnetic elements, the effect of eddy currents and the load on the shaft. This made it possible to build an accurate mathematical model of the rotational parameters of the electric motor.…”

Section: Literature Review and Problem Statementmentioning

confidence: 99%

Devising a technique for measuring torque of electric motors using machine vision

Kvasnikov,

Kvashuk,

Prygara

et al. 2024

EEJET

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The object of research is the technique for measuring torques of electric motors. The main problem to be solved is the need to expand the range of informative parameters used in transmission torque converters of electric motors. This need arises from the design complications of placing the measuring devices directly on the motor shaft. As part of the study, a system was designed for determining the torques of electric motors, which combines the procedure for assessing the load on the shaft and software tools for visually determining the quantitative characteristics of such a load using machine vision. In order to acquire visual characteristics of the twisting of the shaft, a special coupling with an insert containing a liquid was designed. This coupling is able to change its shape in proportion to the load on electric motor shaft. The proposed visual control system, based on video information processing techniques, makes it possible to analyze changes in the shape of the coupling caused by the action of the torque. Features of the application of the proposed measurement technique are that there is no need to place electronic components of the measuring transducer directly on the shaft. Due to the specified features, the proposed procedure provides a solution to the problems of torque measurement in aggressive environments, which is of crucial importance for the efficiency of some specific production processes. Analysis of the visual characteristics of torque showed that the proposed approach could be applied in measuring transducers. At the same time, the results of testing the procedure confirmed that it requires the use of high-precision video recording equipment. This paves the way for the design of new, more modern, and reliable measurement systems that could be used in a wide range of industrial solutions

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Section: Literature Review and Problem Statementmentioning

confidence: 99%

Devising a technique for measuring torque of electric motors using machine vision

Kvasnikov,

Kvashuk,

Prygara

et al. 2024

EEJET

View full text Add to dashboard Cite

show abstract

“…To address this limitation, without altering the structure and type of high-speed valves, multiple high-speed valves are typically connected in parallel to form a Digital Flow Control Unit (DFCU) to expand flow rate gain and resolve the aforementioned contradiction [14]. Previous research on high-flow and fast-response valves has primarily focused on proportional/servo or HSV [15][16][17]. In recent years, there has also been significant progress in the field of pilot valves for HSV [18,19].…”

Section: Introductionmentioning

confidence: 99%

Multi-objective optimization design of low-power-driven, large-flux, and fast-response three-stage valve

Ma,

Xiao,

Hao

et al. 2024

Preprint

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Solenoid valves in coal mining equipment are driven by intrinsically safe solenoids. The low power consumption of these solenoids limits the response time of the solenoid valves. Additionally, the low viscosity and high susceptibility to dust contamination of the emulsion fluid often leads to leakage and sticking of hydraulic valves. To address these issues, this study proposes a low-power-driven, large-flux, fast-response three-stage valve structure with an internal displacement feedback device. The driving power of this structure is less than 1.2 W. The key parameters of the valve were optimized using a novel multi-objective optimization algorithm. A prototype was manufactured based on the obtained parameters and subjected to simulation and experimental verification. The results demonstrate that the valve has an opening time of 21ms, a closing time of 12ms, and a maximum flow rate of approximately 225L/min. By utilizing this valve for hydraulic cylinder control, a positioning accuracy of ±0.15mm was achieved.

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Multi-objective optimization design of low-power-driven, large-flux, and fast-response three-stage valve

Ma,

Xiao,

Hao

et al. 2024

Sci Rep

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Refined modeling and experimental verification of a torque motor for an electro-hydraulic servo valve

Cited by 4 publications

References 20 publications

Devising a technique for measuring torque of electric motors using machine vision

Devising a technique for measuring torque of electric motors using machine vision

Multi-objective optimization design of low-power-driven, large-flux, and fast-response three-stage valve

Multi-objective optimization design of low-power-driven, large-flux, and fast-response three-stage valve

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