Analysis of the Static and Dynamic Characteristics of the Electro-Hydraulic Pressure Servo Valve of Robot

Abstract

According to the characteristics of rotary direct drive electro-hydraulic pressure servo valve, the lumped parameter modeling and three-dimensional (3D) field analysis methods are integrated. The lumped parameter method is used for mathematical modeling for system parts with clear physical concept, and for complicate structures difficult to simply and derive, the 3D mathematical model is employed to analyze the magnetic field, flow field and structural field. Moreover, numerical fitting is carried out to the field analysis results, and the model recognition methods, such as neural network, are used for modeling. Specific mathematical algorithms are used to represent the mathematical relationship between the input parameters (such as structural parameters and environmental parameters) and the feature output parameters. Finally, the algorithm which can be used to evaluate the relationship between the input parameters (such as structural parameters and environmental parameters) of the analyzed object and its static and dynamic performances is obtained. For similar research objects, the user only needs to change the values of input parameters to complete the analysis and evaluation of the static and dynamic performances of system.

Analysis of the Effect of Volumetric Efficiency of Emulsion Pumps

“…Five plungers are selected, the angle of the two adjacent plungers is 72 °, [6] in order to facilitate the modeling, the angular velocity of the motor acting on the crankshaft is calculated through the transmission ratio formula, which is connected to the crankshaft, Simulation is performed according to the parameters set in Table 1 according to the model and the following figure 2 shows the AMESim five-plunger model.…”