Xin He, Xiang Jiang, Bozhong Gu, Yu Ye, Zhongyu Yue. Design and analysis of Lijiang 2.4-meter telescope Nasmyth focus and Cassgrain focus switching system[J]. Infrared and Laser Engineering, 2022, 51(5): 20210881

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- Infrared and Laser Engineering
- Vol. 51, Issue 5, 20210881 (2022)

Fig. 1. Cassegrain optical system

Fig. 2. Switching system. (a) State of Nasmyth focus; (b) State of Cassgrain focus

Fig. 3. Components of the azimuth structure and translation stage

Fig. 4. Components of altitude structure

Fig. 5. Control system

Fig. 6. Statics simulation

Fig. 7. Modal analysis

Fig. 8. Experimental test

Fig. 9. Experimental test data

Fig. 10. Installation and adjustment on site
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Table 1. Technology parameters
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Table 2. Material properties of switching system
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Table 3. PV and RMS values under different support

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