Abstract
In order to study the effects of joint clearance on dynamics characteristic of the Two-Axis-Position Mechanism of satellite antennas, the contact dynamics model is established by using a nonlinear equivalent spring-damp model and the friction effect is considered by using Coulomb friction model. And then the models are incorporated into ADAMS. The dynamics model of Two-Axis-Position Mechanism with joint clearance is established based on the virtual prototype and the dynamics simulation is made by using ADAMS. Finally, the effects of joint clearance on dynamics characteristics of the Two-Axis-Position Mechanism of satellite antennas are analyzed and the effects of clearance size on its dynamics characteristics are studied. The simulation results show that the joint clearance leads to severe effects on the Two-Axis-Position Mechanism of satellite antennas and the effect of clearance on Two-Axis-Position Mechanism of satellite antennas can be predicted perfectly.
| Original language | English |
|---|---|
| Pages (from-to) | 1533-1539 |
| Number of pages | 7 |
| Journal | Yuhang Xuebao/Journal of Astronautics |
| Volume | 31 |
| Issue number | 6 |
| DOIs | |
| State | Published - Jun 2010 |
| Externally published | Yes |
Keywords
- Dynamics simulation
- Joint clearance
- Satellite antenna
- Two-Axis-Position mechanism
- Virtual prototype
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