Experimental research characteristics of counterbalance valve for hydraulic drive control system of mobile machine

Kozlov, Leonid

doi:10.15199/48.2019.04.18

Cited by 12 publications

(4 citation statements)

References 15 publications

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“…The value of the k r coefficient greatly influences the quality of the transient processes in the adaptive hydraulic drive. The modeling of the hydraulic drive operation with the adaptive regulation is carried according to the mathematical model [10,12].…”

Section: Hydraulic Automatic Devices For the Operation Elements Of Thmentioning

confidence: 99%

Application of Hydraulic Automation Equipment for the Efficiency Enhancement of the Operation Elements of the Mobile Machinery

Polishchuk

Kozlov

Burennikov

et al. 2019

IAPGOŚ

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Section: Hydraulic Automatic Devices For the Operation Elements Of Thmentioning

confidence: 99%

Application of Hydraulic Automation Equipment for the Efficiency Enhancement of the Operation Elements of the Mobile Machinery

Polishchuk

Kozlov

Burennikov

et al. 2019

IAPGOŚ

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“…The dynamic characteristics of the outlet valve of the piston pump are calculated, and the study shows that the check valve converges at different crank speeds, but there is some closing hysteresis. The dependence of the working fluid supply on its basic slide valve differential pressure and on the parametric loading pressure is plotted [6]. Transient processes in the hydraulic drive control system are analyzed.…”

Section: Introductionmentioning

confidence: 99%

Nonlinear Dynamics of Pilot-Operated Hydraulic Control Valves for Submersible Based on Improved Newmark- Integration Method

Li,

Zhang,

Lian

et al. 2023

IEEE Access

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Submersible is an important equipment for the development and utilization of marine resources. The pilot-operated hydraulic control valves have an extremely wide range of applications in the buoyancy adjustment system of submersibles. The existing hydraulic control valves have insufficient flow rate and pressure adjustment ability in a wide range of system pressures. A pilot-operated hydraulic control valve with a wide range of adjustable pressures, a high flow rate control accuracy, and anti-turbulence and cavitation is designed. A joint simulation method combining MATLAB/Simulink and UDF dynamic mesh is developed. The dynamic characteristics of the piping system and pilot-operated hydraulic control valve under different system inlet pressures are investigated by using the metric cellular automata technology and one-and threedimensional co-simulation platforms. The results of the joint simulation show that: the flow rate of the system stabilizes for a period at a system inlet pressure of 1.6 MPa, and the phenomena such as fluctuations and oscillations will occur after a period. To address this phenomenon, an improved Newmark-β integration method is proposed based on establishing a correct nonlinear model. The established model is solved in a longer time domain to obtain the nonlinear dynamic bifurcation behavior of the model. The stability of the pilot-operated hydraulic control valve is analyzed by displacement dynamic response diagrams, phase space trajectory diagrams, and bifurcation diagrams. A direction is provided for the applied research of nonlinear system bifurcation theory in self-operated valves.

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“…When operating belt conveyor drives, conditions arise under which, due to the large load increase, the drive needs to be stopped immediately to prevent breakage of the drive. This reduces the productivity of the conveyor [3,6,14].…”

Section: Introductionmentioning
confidence: 99%

Dynamics of the Conveyor Speed Stabilization System at Variable Loads
Polishchuk
¹
,
Khmara
²
,
Piontkevych
³

et al. 2022
IAPGOS
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The dynamic processes of the system of stabilization of the speed of the conveyor belt with a built-in hydraulic drive on the basis of an improved mathematical model, which takes into account the physical phenomena occurring in the hydraulic system during the action of alternating load. The influence of the main parameters of the hydraulic system and the magnitude of the load on the course of dynamic processes is analyzed and recommendations for their selection are formulated. The proposed scheme of the built-in hydraulic drive of a conveyor belt with system of stabilization of speed of movement automatically provides its uninterrupted work. The use of an additional hydraulic pump allowed to stabilize the speed of the conveyor belt to 7.8%, provided that the load on the working link is 2.3 times.

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Experimental research characteristics of counterbalance valve for hydraulic drive control system of mobile machine

Cited by 12 publications

References 15 publications

Application of Hydraulic Automation Equipment for the Efficiency Enhancement of the Operation Elements of the Mobile Machinery

Application of Hydraulic Automation Equipment for the Efficiency Enhancement of the Operation Elements of the Mobile Machinery

Nonlinear Dynamics of Pilot-Operated Hydraulic Control Valves for Submersible Based on Improved Newmark- Integration Method

Dynamics of the Conveyor Speed Stabilization System at Variable Loads

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