Abstract
For magnetically suspended control moment gyroscope (MSCMG), the friction moment of the gimbal servo-system varied with the output force moment and the gimbal s angle position. In order to achieve high accuracy output force moment, a accurate friction model need to be built. This paper studied the dynamics of the magnetically suspended control moment gyroscope s gimbal system, analysed the mechanism and disciplinarian of the friction moment which was related to output force moment and gimbal's angle position, and established the nonlinear friction moment model and nonlinear dynamic model of the gimbal servo-system. The parameter of the nonlinear dynamic model was identified by the least squares estimation method using the experimental data. Then the experimental data and the identified model were used for analysis and simulation. The simulation result which can fit the actual experimental data very well proved the correct and effective of the friction moment s nonlinear model.
| Original language | English |
|---|---|
| Pages (from-to) | 613-618 |
| Number of pages | 6 |
| Journal | Yuhang Xuebao/Journal of Astronautics |
| Volume | 28 |
| Issue number | 3 |
| State | Published - May 2007 |
| Externally published | Yes |
Keywords
- Dynamic model
- MSCMG
- Nonlinear friction
- Parameter identification