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Application of Stewart Platform in the Low-Frequency Vibration Characteristic Test of Space Truss Deployable Antenna on Satellite
- Source :
- International Journal of Aerospace Engineering, Vol 2022 (2022)
- Publication Year :
- 2022
- Publisher :
- Wiley, 2022.
-
Abstract
- The space truss deployable antenna has low natural frequency, multi-closed-loop, and multiredundant structure characteristics, which is a kind of flexible antenna. It is hard to obtain the vibration characteristics under low frequency by finite element analysis or conventional shaking table test. To verify the structure characteristics of the antenna in the folded state below 2 Hz, a low-frequency vibration system is established based on the 6-DOF Stewart platform. Rotation matrix analysis method was adopted to obtain the platform’s velocity and acceleration characteristics. Then, a low-frequency vibration test was carried out on the platform. The results show that the natural frequency of the antenna is 1.51 Hz and the maximum dynamic displacement is 140.6 mm, which provides a certain foundation for the further development of the space truss antenna.
- Subjects :
- Motor vehicles. Aeronautics. Astronautics
TL1-4050
Subjects
Details
- Language :
- English
- ISSN :
- 16875974
- Volume :
- 2022
- Database :
- Directory of Open Access Journals
- Journal :
- International Journal of Aerospace Engineering
- Publication Type :
- Academic Journal
- Accession number :
- edsdoj.27794409b5d44bbfa13c21281b65f47e
- Document Type :
- article
- Full Text :
- https://doi.org/10.1155/2022/8063786