Kexin Song, Lei Zhang, Xuezhi Jia, Zhiqiang Su. Carbon Fiber Truss Support Technology for JL-1 Light High Resolution Space Camera[J]. Acta Optica Sinica, 2020, 40(21): 2122002
- Acta Optica Sinica
- Vol. 40, Issue 21, 2122002 (2020)
Fig. 1. Schematic of positional relationship between primary and secondary mirrors
Fig. 2. Configuration of secondary mirror support structure. (a) Thin-walled tube type; (b) thin-walled tube truss combined type
Fig. 3. Size optimization strategy of main bearing system. (a) Main bearing structure; (b) tube wall structure; (c) limit force state of thin-walled tube; (d) truss cross-sectional configuration; (e) single truss limit force state
Fig. 4. 1st order shape of truss
Fig. 5. Stability detection device of CFRP truss structure
Fig. 6. Randomly scan vibration data
Fig. 7. Satellite remote sensing image
Fig. 8. Dynamic MTF curves
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Table 1. Comparison of performance parameters of secondary mirror support structure
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Table 2. Central position of subreflector changes in different directions under action of gravity and thermal loads
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Table 3. Jitter results of visual axis in image plane coordinate system
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Table 4. Stability test results of CFRP truss structure
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Table 5. Comparison of characteristic frequencies obtained by process engineering analysis and experimental testing in different ordersunit: Hz
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