Research Article
Study on the Resonant Suppression of Electrohydraulic Servo Shaking Table of a 2-Mass Dynamic System
Table 1
Parameters based on the hydraulic system power mechanism.
| Piston diameter D (mm) | 50 | Piston rod diameter d (mm) | 36 | Piston effective area A (m2) | 945.6 × 10−6 | Stroke of hydraulic cylinder L (mm) | ±200 | Equivalent volume modulus of elasticity βe (MPa) | 690 | Pipe diameter d1 (m) | 0.01 | Equivalent mass of load inertia mp (kg) | 100 | Elastic load quality mL (kg) | 100 | Hydraulic spring stiffness Kh (N/m) | 6.53 × 106 | Servo valve gain Kq (m3/s/A) | 2 × 10−2 | Flow-pressure coefficient Kce (m3/s/Pa) | 3 × 10−12 | Viscous damping coefficient of the piston and load BL (N/(m/s)) | 80 |
|
|