Characterization of 2D Electrical Feedback Flow Control Valve

Dai, Quanchao; Zhao, Jiantao; Li, Sheng; Jia, Wenang

doi:10.3390/machines11020220

Cited by 3 publications

(2 citation statements)

References 17 publications

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“…Valve-controlled electro-hydraulic excitation equipment have three basic structures 7 , which are classified as 2D-valve controlled 8 , slide-valve controlled 9 , 10 and rotary-valve controlled 11 , 12 . The 2D valve controlled electro-hydraulic excitation apparatus vibrates by controlling the flow of liquid 13 . The slide valve changes the axial position of the valve core to regulate the flow rate, thus realizing vibration 14 .…”

Section: Introductionmentioning

confidence: 99%

Characterization of rotary valve control vibration system for vibration stress relief applications

Zhou,

Zhao,

Wang

2024

Sci Rep

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To enhance the vibration system characteristic distortion and pressure loss, we propose a novel rotary valve control vibration system. The paper presents the designed structural composition and generation mechanism of the rotary valve control vibration system. It also derives the mathematical model for the rotary valve distribution process and the overall system. The flow field inside the rotary valve is dynamically simulated using the multiple reference frame model, allowing for the determination of the change rule of the rotary valve’s output characteristics. An AMESim model was developed to analyze the vibration characteristics of the rotary valve control system. The effects of parameters such as inlet pressure, motor speed, and oil supply pump displacement were investigated. A rotary valve control vibration system experimental bench was constructed to experimentally verify the output characteristics of the rotary valve and the vibration characteristics of the system. The results indicate that the characteristic curve of the designed vibration system closely resembles a sinusoidal wave. Additionally, the rotary valve exhibits low pressure loss, making it more suitable for vibration stress relief applications. By appropriately increasing the inlet pressure and decreasing the motor speed, the vibration characteristics of the system can be improved.

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Section: Introductionmentioning

confidence: 99%

Characterization of rotary valve control vibration system for vibration stress relief applications

Zhou,

Zhao,

Wang

2024

Sci Rep

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“…An increase in clearance can lead to an insufficient supply of gas turbine fuel pressure, and a decrease in clearance can render the valve prone to friction and sticking [1]. Its structural accuracy can directly affect the parameters of the fuel outlet and the working stability [2].…”

Section: Introductionmentioning

confidence: 99%

A Thermal Fluid–Solid Coupling Simulation of Gas Fuel Control Valves for High-Precision Gas Turbines

Pan

Luo

et al. 2023

Aerospace

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Gas fuel control valves play important roles in the control of gas flow in high-precision gas turbines. To clarify the influence of coupling between the structure and the fluid system, a thermal fluid–solid coupling mechanism is presented based on numerical investigations carried out using a dynamic mesh technique. Valve core deformation can affect the outlet gas flow accuracy. At 2% valve opening, the gas temperature contributes 93% to the deformation. The effect of deformation on the flow accuracy at 6% valve opening and 4% valve opening is increased by 4.8% and 7.3%, respectively. The fluctuation range of the gas temperature and pressure in front of the valve should be strictly controlled to ensure the high precision and high stability of the outlet flow. These results help to clarify the processes that occur in the valve flow path, leading to the flow control instability observed in the control valve.

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Study on the influence of pipe effect on the vibration characteristics of electro-hydraulic exciter

Jin,

Zhao,

Min

et al. 2024

Sci Rep

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In this paper, an electro-hydraulic exciter controlled by an alternating current distribution valve is proposed, and a systematic analysis of the influence of pipe effect on the vibration characteristics of the electro-hydraulic exciter is investigated by simulation and experiments. The vibration characteristics curves for different pipe parameters are obtained, and the relative errors between simulation and experiment are evaluated. Moreover, a significant regression model of pipe parameters and vibration characteristics of the electro-hydraulic exciter is established by using the quadratic regression analysis method and the Box-Behnken experiment design method. Significant differences in the influence of pipe parameters on vibration characteristics are obtained by ANOVA (Analysis of Variance), and the influence of pipe parameter interaction on vibration characteristics is discussed. The results show that the relative importance of pipe parameters on the vibration characteristics of electro-hydraulic exciter, from high to low, is as follows: pipe diameter, elastic modulus, and pipe length. Notably, there is also an interaction between the pipe parameters, and the significance of these interactions is ranked from high to low as the interaction between the layers of steel wire and diameter, the interaction between diameter and length, and the interaction between the layers of steel wire and length.

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Characterization of 2D Electrical Feedback Flow Control Valve

Cited by 3 publications

References 17 publications

Characterization of rotary valve control vibration system for vibration stress relief applications

Characterization of rotary valve control vibration system for vibration stress relief applications

A Thermal Fluid–Solid Coupling Simulation of Gas Fuel Control Valves for High-Precision Gas Turbines

Study on the influence of pipe effect on the vibration characteristics of electro-hydraulic exciter

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