Research Article
Reliability Test Rig of the Motorized Spindle and Improvements on Its Ability for High-Speed and Long-Term Tests
Table 3
Parameters of the EHSLS before and after optimization.
| Parameter | Value | Unit | Definition |
| Main parameters | | | | Amplification coefficient | | | | Natural frequency of the servo valve | | | | Damping coefficient of the servo valve | | | | Flow gain of the servo valve | | | | Leakage coefficient of the system | | | | Elastic modulus of effective volume | | | | Oil volume in each chamber when the piston is in the middle of the cylinder | | | | Equivalent mass of the piston rod | | | | Effective action area of the piston rod | | | | Structural stiffness | | | | Damping coefficient of the piston and load | | | | Amplification coefficient of the feedback link |
| Damper parameters | | | | Stiffness of the damper | | | | Damping coefficient of the damper |
|
|