Research Article
Encapsulation Based Method for Natural Frequency Identification of Deployable Solar Arrays with Multiple Plates
Table 2
Natural frequencies of the twofold solar array in the horizontal direction.
| Rope length L (m) | Suspension stiffness kx (N·mm−1) | First-order natural frequency in the horizontal direction | Test value (Hz) | Relative error of test (%) | Corrected value of mathematical model (Hz) | Corrected relative error (%) |
| 0.5 | 0.098 | 0.9 545 | 29.39 | 0.7 341 | −0.49 | 1.0 | 0.097 | 0.8 558 | 16.01 | 0.7 391 | 0.19 | 1.5 | 0.095 | 0.8 140 | 10.34 | 0.7 391 | 0.19 | 2.0 | 0.094 | 0.7 906 | 7.17 | 0.7 385 | 0.11 | 2.5 | 0.092 | 0.7 756 | 5.14 | 0.7 381 | 0.05 | 10 | 0.075 | 0.7 220 | −2.13 | 0.7 309 | −0.92 |
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