Research Article
Analytical and Experimental Study Using Output-Only Modal Testing for On-Orbit Satellite Appendages
Table 12
Identified natural frequencies for Case 3.
| | Mode | Output-only modal testing methods | Finite-element modal analysis f(Hz) (Reference) | | FDD f(Hz) | EFDD f(Hz) | SSI | | UPC f(Hz) | PC f(Hz) | CVA f(Hz)
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| | 1 | 3.3 | — | 3.30 | 3.30 | 3.30 | 3.24 | | 2 | 21.68 | — | 21.75 | 21.64 | 21.74 | 21.75 | | 3 | 68.55 | — | 68.22 | 68.90 | 68.22 | 68.22 | | 4 | 140.6 | — | 140.3 | 139.4 | 140.3 | 140.25 |
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