Related Experiment Video
Updated: Sep 3, 2025

Modeling and Experimental Analysis of the Single-Shaft Coaxial Motor-Pump Assembly in Electrohydrostatic Actuators
Published on: June 13, 2022
Simulation Analysis and Performance Test of a Compressible Piezoelectric Pump Fluid Cavity
Xia Liu1,2, Tongyu Wang1, Hu Wang2
1School of Mechatronical Engineering, Changchun University of Science and Technology, Changchun 130022, China.
Abstract:
The large load loss of piezoelectricity pumps leads to fluid energy in the fluid chamber during fluid transportation. In this paper, the output performance of a piezoelectricity pump is improved by changing the structure parameters of the fluid chamber to reduce the fluid load. The mechanism of fluid flow energy loss in the body cavity of hydraulic pumps is simulated and analyzed, and the influence of the dimensions of the inlet and outlet valves and the height of the cavity on fluid energy loss is obtained. The flow rate and pressure of inlet and outlet valves with different cavity heights and different driving frequencies are obtained. The results show that the flow rate and output pressure of the hydraulic pump are optimized when the cavity height is 3 mm, and the inlet and outlet valve diameters are 2.5 mm.
Related Concept Videos
Fluid Pressure
According to Pascal's law, a fluid at rest will generate equal pressure in all directions. This pressure is measured as a force per unit area, and its magnitude depends on the fluid's specific...
Fluid Pressure over Curved Plate of Constant Width
Fluid Pressure over Flat Plate of Constant Width
The resultant force...

