Tao Qin, Junli Guo, Meili Zhang, Peixian Han, Jin Wang, Bo Qi. Structure design and stiffness analysis of spaceborne two-dimensional turntable[J]. Infrared and Laser Engineering, 2022, 51(5): 20210364
- Infrared and Laser Engineering
- Vol. 51, Issue 5, 20210364 (2022)
Fig. 1. Structure form of two-dimensional turntable
Fig. 2. Overall structure of spaceborne two-dimensional turntable
Fig. 3. Schematic diagram of part components of the optical machine structure
Fig. 4. Two kinds of lightweight tip-tilt mirror assembly models
Fig. 5. Schematic of design variables of two back lightweight form tip-tilt mirrors
Fig. 6. U-shaped frame lightweight structure
Fig. 7. Stress response nephogram of the U-shape structure
Fig. 8. Shafting structure design section
Fig. 9. Schematic diagram of the bearing equivalent model
Fig. 10. Simplified local finite element model of angular contact ball bearing
Fig. 11. Finite element model of two-dimensional turntable
Fig. 12. Mode diagram of two-dimensional turntable
Fig. 13. Mechanics test of two-dimensional turntable
Fig. 14. Sweep frequency curve of the direction ofX
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Table 1. Design requirements of two-dimensional turntable
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Table 2. Structural material properties of hole tip-tilt mirror assembly
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Table 3. Design variables and optimal results
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Table 4. Analysis results of three different U-shaped frame materials
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Table 5. Angular contact bearing and deep groove ball bearing stiffness calculation results
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Table 6. Modal analysis results of two-dimensional turntable
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Table 7. Mechanics test results and simulation errors of two-dimensional turntable
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