Design of a Laboratory Test Equipment for Measuring and Testing Mobile Energy Means with Simulation of Operating Conditions

Abstract

The presented article deals with the design of equipment for measuring and testing hydrostatic transducers. The presented design of the device is used for measuring and testing hydrostatic transducers in laboratory conditions, especially hydraulic pumps. This shortens the testing time, with a reduction in economic costs for testing the elements of the hydraulic circuit or testing the properties of pumps and hydraulic fluids. By simulating the operating conditions occurring in practice, it is possible to verify and evaluate the parameters of mobile energy means used in hydraulic mechanisms. The designed laboratory equipment is used for measuring and testing hydrostatic transducers and properties of hydraulic fluids. A verification measurement of the flow of the hydrostatic transducer was performed on the proposed laboratory equipment. The output of the measurements is a confirmation of the functionality of the designed equipment. The results of the verification measurement were compared with the data obtained during the simulations in the computer program FluidSIM 5. The output of the measurements is a confirmation of the functionality of the designed equipment. When comparing the results of the verification measurement of the flow on the laboratory equipment with the data given by the manufacturer of the transducer, we recorded a decrease in flow of 5.1% at a speed of 250 rpm in comparison. At 500 rpm we recorded an increase in flow of 2.38% and at 750 rpm there was an increase of 4.15% compared to the data from the manufacturer. The results of the verification measurements were also compared with the simulation in the computer program FluidSIM 5. The flow data obtained by the simulation showed higher values than in the verification measurement. Specifically, at 250 rpm it was an increase of 3.21%, at 500 rpm by 0.39%, and at 750 rpm by 3.14%.

Testing of Regulating and Non-Regulating Hydraulic Pumps

“…The hydraulic components of the designed hydraulic device were based on formulas according to Baroška (2012), Tottem and De Negri (2012), Will and Gebhardt (2011), Sigloch (2009), and Hujo et al (2022).…”

Static Characteristics and Energy Consumption of the Pressure-Compensated Pump

“…They conclude that up to 94% of all leakage is produced between the slipper and swash plate or between the barrel and port plate. The volumetric efficiency was also investigated by the authors in the paper [18] and from their results, it can be seen that the volumetric efficiency increases with increasing pump speed. Volumetric efficiency also depends on the contamination of the fluid [19].…”