基于amesim的轴向柱塞泵范例.pdf

Model of a fixed displacement axial piston pump with swash plate design Purpose The aim of this demo is the modelling of an axial piston pump with swash plate design having a fixed displacement. This demo includes a specific submodel for calculation of forces and torques acting on the fixed swash plate. Open this demo $AME/demo/Solutions/Fluids/SwashPlatePump/OneDOF.ame Description Figure 1a shows a simplified view of an axial piston pump with fixed swash plate. This pump has 5 pistons. A Cartesian coordinate system is used, as shown in the picture. Figure 1a : Fixed displacement axial piston pump of the swash plate design Figure 1b shows the front view of the pump, where R is the radius of the pitch circle while an arrow indicates the numbering of the pistons. The angular position of the first piston (fi1) is also shown in the same picture. Figure 1b : Fixed displacement axial piston pump with swash plate design Figure 1c shows the side view of the pump, where the swash plate angle  is depicted. Figure 1c : Fixed displacement axial piston pump of the swash plate design Figure 2 shows the complete pump model including three specific components marked with labels. Figure 2: Model of fixed displacement axial piston pump of the swash plate design Figure 3 shows a supercomponent for the calculation of volumetric flow rate between the pumping cylinders, the inlet port and the outlet port. This is the valve plate functioning. Depending on the angular position of the pumping cylinder, there is a connection either with the inlet or with the outlet port. There is an angular phase between the pumping cylinders. The flow area is a look-up table function of the pistons angular position. Figure 3: Supercomponent for the valve plate Figure 4 shows a specific su