Research Article
Application of Stewart Platform in the Low-Frequency Vibration Characteristic Test of Space Truss Deployable Antenna on Satellite
Table 3
Test result of each measuring point in
-direction.
| | Measuring point | -direction | Time (s) | Initial frequency (Hz) | Fundamental frequency (Hz) | | Amplitude (με) | Initial time | First peak time |
| | S1 | -68.4 | 119 | 9.8 | 22.2 | 0.8 | 1.51 | | S2 | -46 | 20 | 22.9 | | S3 | -120 | 16 | 22.2 | | S4 | -110 | 22 | 22.9 | | S5 | -64 | 123 | 20.1 | | S6 | -179 | 102 | 21.3 | | S7 | -439 | 38 | 24.0 | | S8 | -374 | 195 | 24.0 | | S9 | -9.6 | 148 | 23.3 | | S10 | -12 | 268 | 22.9 | | S11 | -9.6 | 40 | 22.2 | | S12 | -33.5 | 59 | 22.2 | | Dynamic displacement | : -1.73~12.37 mm; : -140.6 ~ 117.1 mm; : -6.76~3.67 mm |
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