Load of the slipper-swash plate kinematic pair of an axial piston pump

Złoto, T.; Kowalski, K.

doi:10.1051/matecconf/201815708013

Cited by 3 publications

(2 citation statements)

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“…The fixed swash plate angle is 12.5 • , the hydraulic pressure is 31.5 MPa, and the rotating speeds are 1200 r/min, 1500 r/min and 1800 r/min respectively, to simulate the movement of axial piston pump under different working conditions [28,29].…”

Section: Kinematics Simulation Analysismentioning

confidence: 99%

Dynamic Contact Analysis of the Piston and Slipper Pair in Axial Piston Pump

et al. 2020

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The dynamic analysis model of axial piston pump was established; both the kinematics and dynamics simulation analysis were conducted by virtual prototyping approach. The displacement, velocity, acceleration and stress curves of the piston under different working conditions were investigated. In addition, a ball-in-socket contact model was established, and the effects of hydraulic pressure, piston radius and radial clearance on normal displacement, contact radius, maximum contact pressure, normal contact stiffness and tangential contact stiffness were analyzed comprehensively. The results indicate that the normal displacement, maximum contact pressure, contact radius, normal contact stiffness and tangential contact stiffness can be improved by enlarging the piston radius and decreasing the radial clearance.

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Section: Kinematics Simulation Analysismentioning

confidence: 99%

Dynamic Contact Analysis of the Piston and Slipper Pair in Axial Piston Pump

et al. 2020

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“…Force F phs is generated by the pressure gradient under the slipper and given by the following equation [22,23]:…”

mentioning

confidence: 99%

Influence of Properties of Hydraulic Fluid on Pressure Peaks in Axial Piston Pumps’ Chambers

Patrosz

2021

Energies

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The article concentrates on the research of the pressure peaks in a working chamber of an axial piston pump. The main focus of the article is the influence of fluid properties on the pressure peaks value. Experimental and analytical methods were used to determine the impact of the fluid density, viscosity, compressibility and aeration. The article describes the pressure peak generation process and explains the theoretical basis of this phenomenon. A model of aerated fluid compression and models of leakage were created using CFD analysis and mathematical equations. These partial models were then merged into one consistent model in Matlab Simulink. The final result was verified by comparing the results obtained from the mathematical model with the results of the experiment. After validation, the model was used to present explicitly how each of the mentioned fluid properties affects the pressure peak value. Additionally, the test stand and measurement equipment used in the experiment were presented along with a short description of the laboratory research and sample results.

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Optimization and Influence of Micro-Chamfering on Oil Film Lubrication Characteristics of Slipper/Swashplate Interface within Axial Piston Pump

Jiang

Wang

2021

Energies

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The overturning and eccentric abrasion of the slipper worsens the lubrication characteristics and increases the friction power loss and kinetic energy consumption of the slipper/swashplate interface to reduce the axial piston pump efficiency. A coupling lubrication numerical model and algorithm and a micro-chamfering structure are developed and proposed to predict more precisely and improve the lubrication characteristics of the slipper/swashplate interface. The simulation results reveal that the slipper without micro-chamfering overturns and contacts with the swashplate, while the one with micro-chamfering forms a certain oil film thickness to prevent this contact effectively. The minimum total power loss of the slipper/swashplate interface has to be effectively ensured under the worst working conditions, such as the high pressure, the low speed, the maximum swashplate inclination angle and the minimum house pressure. The optimal micro-chamfering width and depth are 1.2 mm and 3.5 μm or C1.2-3.5, the simulation average oil film thickness of which is approximately equal to the optimal analytical value. The experimental friction power loss of the slipper/swashplate interface is basically consistent with the simulation one, confirming the correctness and effectiveness of the coupling lubrication numerical model, and the optimization method and providing the further design direction of axial piston pumps.

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Load of the slipper-swash plate kinematic pair of an axial piston pump

Cited by 3 publications

References 0 publications

Dynamic Contact Analysis of the Piston and Slipper Pair in Axial Piston Pump

Dynamic Contact Analysis of the Piston and Slipper Pair in Axial Piston Pump

Influence of Properties of Hydraulic Fluid on Pressure Peaks in Axial Piston Pumps’ Chambers

Optimization and Influence of Micro-Chamfering on Oil Film Lubrication Characteristics of Slipper/Swashplate Interface within Axial Piston Pump

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