Research Article
Influence of the Hydraulic Circuit Setup on the Dynamic Performance of an Axial Piston Pump by Numerical and Experimental Analysis
Table 1
The pumps characteristics and the model parameters.
| | Parameters | Pump 1 | Pump 2 |
| | The rotary inertia, (kg·m3) | | | | Spring damper stiffness, (Nm/rad) | | | | Weight (kg) | | 28.8 | | Nominal displacement (cm3/rev) | | | | Continuous pressure (bar) | | | | Swash plate angle (degree) | | | | Rotational speed limits (RPM) | – | – | | Spring damper damping, (Nm/(rad/s)) | | | Number of pistons | 9 | | The speed of sound in a hydraulic oil, (m/s) | | | The cross-section of the flexible pipe, (cm2) | | | Length of pipe 1, (m) | | | Volume of pipe 2, (cm3) | | | The maximum coefficient, | 0.7 | | Resonance frequency, (Hz) | | | Estimated Young’s modulus at 100 bar (MPa) | | | Estimated Young’s modulus at 200 bar (MPa) | | | Density of VG 46 (kg/m3) | | | Bulk modulus of VG at 100 bar gauge (MPa) | | | Bulk modulus of VG at 200 bar gauge (MPa) | | | Bulk modulus of VG at 300 bar gauge (MPa) | | | Viscosity of VG at 100 bar gauge (cP) | | | Viscosity of VG at 200 bar gauge (cP) | | | Viscosity of VG at 300 bar gauge (cP) | |
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