Table 2 Effects of damping holes on the noise sources
From: Noise Reduction of an Axial Piston Pump by Valve Plate Optimization
Parameter | Value (mm) | pmin (10−2 MPa) | pmax (MPa) | ΔQLP (L/min) | ΔQHP (L/min) | ΔMZ (Nm) |
|---|---|---|---|---|---|---|
r 1 | 0 | 1.7 | 29.81 | 20.42 | 7.34 | 282.1 |
0.3 | 4.7 | 29.45 | 20.26 | 5.80 | 234.9 | |
0.55 | 4.7 | 29.12 | 20.06 | 3.51 | 186.2 | |
0.7 | 4.7 | 28.75 | 21.31 | 3.06 | 183.3 | |
r 2 | 0.5 | 4.7 | 29.11 | 20.06 | 4.37 | 186.2 |
0.7 | 4.7 | 29.12 | 20.06 | 3.51 | 186.2 | |
1 | 4.7 | 29.14 | 20.06 | 3.90 | 186.2 | |
r 3 | 0.3 | 7.9 | 29.51 | 44.76 | 3.51 | 244.9 |
0.55 | 4.7 | 29.12 | 20.06 | 3.51 | 186.2 | |
0.7 | 3.1 | 28.95 | 15.04 | 3.51 | 197.7 |