Research Article
Research on the Dynamic Erosion Wear Characteristics of a Nozzle Flapper Pressure Servo Valve Used in Aircraft Brake System
Table 1
The value of simulation parameters.
| | Parameter | Value |
| | kt (Nm/A) | 1.06 | | Ja (kg·m2) | 1.2e − 7 | | Ba (Nm/rad·s) | 7e − 5 | | ka (Nm/rad) | 20.85 | | km (Nm/rad)) | 11.4 | | r (m) | 0.017 | | Cp | 0.7 | | ρ (kg/m3) | 1070 | | xd0 (m) | 5e − 5 | | kqp (m3/s/m) | 9.2e − 2 | | Ey (Pa) | 7e9 | | (m2) | 2.87e − 5 | | Ap (m2) | 2.83e − 7 | | Vp (m3) | 4.28e − 8 | | (kg) | 0.004 | | Vt (mL) | 400 | | (N/m/s) | 50 | | kh (N/m) | 20.6 | | ks (N/m) | 2.58 | | Ff (N) | 0 | | Pr (MPa) | 0.5 | | Af (m2) | 3.74e − 6 | | Ph (MPa) | 21 | | W (m) | 3.5e − 3 |
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