A dynamic modelling method for an electro-hydraulic proportional valve combining multi-systems and moving meshes

Li, Ziyue; Ling, Hongtao; Chen, Junjie; Ye, Feng; Qiu, Tianyu; Zhao, Ri-cheng

doi:10.1007/s40430-022-03603-x

Cited by 10 publications

(3 citation statements)

References 27 publications

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“…6. (28) It can be analyzed from the results in Fig. 5 that vibration amplitude decays rapidly and stabilizes in a short time under the effect of damping.…”

Section: Damped Vibration Analysis Of the Electromagnetic Systemmentioning

confidence: 99%

“…Gu et al [27] divided the dynamic model of a giant magnetostrictive material actuator into a nonlinear hysteresis model and a dynamic linear model. Methods for solving nonlinear equations include finite element methods [28,29], numerical methods [30,31] and analytical methods. The analytical solution of the nonlinear equations plays an important role in describing the dynamic characteristics and designing the control strategy.…”

Section: Introductionmentioning

confidence: 99%

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Dynamic and steady-state performance analysis of a linear solenoid parallel elastic actuator (LSPEA) with nonlinear stiffness

Wang

Luo

et al. 2022

Preprint

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In order to predict and evaluate the response time and displacement of a large-stroke, high-speed micro-LSPEA under different currents and springs, numerical and analytical methods are used to obtain the dynamic and steady-state performance indicators of the nonlinear system. Firstly, the analytic functions of the electromagnetic force and the magnetic field distribution were presented. The nonlinear vibration equation was obtained by dynamic modeling. The averaging method and the KBM method were employed to obtain analytical solutions of the undamped system. The equivalent linearization of the damped nonlinear system was performed to obtain the approximate analytical solutions of performance indicators. Finally, the displacement of the actuator equipped with different springs was measured experimentally. Meanwhile, the transient network was constructed by Simulink software to solve the nonlinear equation numerically. The displacement curves and performance indicators obtained by experiment, numerical and analytical methods are compared. The maximum errors of the peak time, overshoot and steady displacement through experiment and simulation are 8.4 ms, 4.36% and 0.59 mm, respectively. The solution result of the vibration equation considering stiffness nonlinearity can reflect the dynamic and steady-state performance of the LSPEA within a certain error, which is helpful for the solution of nonlinear systems caused by multi-physics coupling.

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“…6. (28) It can be analyzed from the results in Fig. 5 that vibration amplitude decays rapidly and stabilizes in a short time under the effect of damping.…”

Section: Damped Vibration Analysis Of the Electromagnetic Systemmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Dynamic and steady-state performance analysis of a linear solenoid parallel elastic actuator (LSPEA) with nonlinear stiffness

Wang

Luo

et al. 2022

Preprint

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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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Structure optimization design of extracorporeal circulation blood transport pump

Liu,

Li,

Gong

et al. 2024

Struct Multidisc Optim

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A dynamic modelling method for an electro-hydraulic proportional valve combining multi-systems and moving meshes

Cited by 10 publications

References 27 publications

Dynamic and steady-state performance analysis of a linear solenoid parallel elastic actuator (LSPEA) with nonlinear stiffness

Dynamic and steady-state performance analysis of a linear solenoid parallel elastic actuator (LSPEA) with nonlinear stiffness

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

Structure optimization design of extracorporeal circulation blood transport pump

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