Eigenfrequency of Hydraulic Systems of Loading Device

Vašina, Martin; Hružík, Lumír; Bureček, Adam

doi:10.1051/epjconf/201611402131

Cited by 2 publications

(1 citation statement)

References 5 publications

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“…Pressure compensated pumps are used in many industrial applications. Pressure compensated pumps are used in energy saving systems as shown in (Vašina et al, 2018). The pressure compensated pump works on the following principle.…”

Section: Introductionmentioning

confidence: 99%

Dynamic Properties of Pressure Compensated Pump

Kolář

2024

Engineering Mechanics

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The aim of the study is to evaluate the dynamic properties of a variable displacement pump. It is a pressure compensated axial piston pump with swash plate. The dynamic properties will be evaluated for transient response. The transient response will be induced by the rapid closure of the directional valve located at the pump outlet. The consequence of the directional valve rapid closure is the regulation of the displacement. The main motivation of this paper is to determine, if the pump speed and the set pump displacement affect the control time in and the overshoot. A methodology for measuring the dynamic properties during the transient response is presented in this paper. The experimental circuit used to measure the dynamic properties is described. Subsequently, the time dependence of the pressure at the pump outlet is evaluated when the directional valve at the pump outlet is rapidly closed. The measurements are then used to evaluate the overshoot and the control time in as a function of the pump speed and the pump relative displacement. The results will be further used to create a mathematical model of a pressure compensated pump.

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Section: Introductionmentioning

confidence: 99%

Dynamic Properties of Pressure Compensated Pump

Kolář

2024

Engineering Mechanics

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Experimental investigation of the check valve behaviour when the flow is reversing

2017

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Abstract. Check valve in a pipeline is supposed to prevent the reverse flow and to allow the flow in the positive direction. The construction of check valves follows these requirements, but the check valve must not cause pressure pulsations in transients. It means when the fluid is accelerating or decelerating. The article describes an experimental investigation of a swing check valve when the flow is changing its direction. The check valve was placed in an experimental circuit, where the pressure on the upstream and downstream side of the valve was measured and the current value of flow rate was determined. The goal was to simulate conditions in the real system, where the check valve slam had been observed.

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Eigenfrequency of Hydraulic Systems of Loading Device

Cited by 2 publications

References 5 publications

Dynamic Properties of Pressure Compensated Pump

Dynamic Properties of Pressure Compensated Pump

Experimental investigation of the check valve behaviour when the flow is reversing

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