Abstract
The dual-axis driving mechanism is a space actuating mechanism for the satellite antenna to implement precise guidance and positioning. As a precision mechanism, joint clearance is bound to influence the kinematic accuracy. A kinematic reliability analysis method for a dual-axis driving mechanism considering joint clearance is developed in this study. Firstly, the relationship between the joint clearance and the kinematic parameters of the dual-axis driving mechanism is determined. Secondly, the position error model of the antenna reflector considering joint clearance is built based on the differential kinematics. Then, the mean and covariance matric of the position error is derived analytically. Finally, the kinematic reliability of the mechanism is calculated on the basis of the saddle point approximation. The effectiveness of the proposed method is validated by comparison with Monte Carlo simulation.
| Original language | English |
|---|---|
| Title of host publication | IET Conference Proceedings |
| Publisher | Institution of Engineering and Technology |
| Pages | 1124-1131 |
| Number of pages | 8 |
| Volume | 2022 |
| Edition | 21 |
| ISBN (Electronic) | 9781839538360 |
| DOIs | |
| State | Published - 2022 |
| Event | 12th International Conference on Quality, Reliability, Risk, Maintenance, and Safety Engineering, QR2MSE 2022 - Emeishan, China Duration: 27 Jul 2022 → 30 Jul 2022 |
Conference
| Conference | 12th International Conference on Quality, Reliability, Risk, Maintenance, and Safety Engineering, QR2MSE 2022 |
|---|---|
| Country/Territory | China |
| City | Emeishan |
| Period | 27/07/22 → 30/07/22 |
Keywords
- component
- dual-axis driving mechanism
- erorr model
- joint clerance
- kinematic reliability