Infrared and Laser Engineering, Volume. 50, Issue 12, 20210344(2021)
Design and simulation of hard coating damping vibration for secondary mirror support structure
Figures & Tables(10)
Fig. 2. Relationship between properties of composite structure and coating thickness
Fig. 3. Position of the secondary mirror relative to the primary mirror changes
Fig. 5. Acceleration response of secondary mirror in
Fig. 7. Spot diagram of optical system corresponding to three cases
Fig. 8. Sub specular cloud image of formant before and after applying hard coating
Table 1. Comparison of vibration damping effect of single and double-sided coating
View tableView in ArticleTable 1. Comparison of vibration damping effect of single and double-sided coating
Way First natural frequency/Hz First modal damping ratio Z-direction maximum deformation of the first mode shape/mm No coating 267.46 7.000×10-4 0.06074 One side 266.20 8.954×10-4 0.00043 Double sided 266.07 9.386×10-4 0.00021
Table 2. Secondary mirror rigid body displacement
View tableView in ArticleTable 2. Secondary mirror rigid body displacement
Uncoated Coated X axis translation/mm 0.021354125 −0.00857106 Y axis translation/mm 0.007947025 −0.003170555 Z axis translation/mm −0.000003885 0.000001621 X axis deflection/（°） 0.000099415 −0.000039655 Y axis deflection/（°） −0.000267578 0.000107385 Z axis deflection/（°） −0.000000201 0.000000022
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Jinkai Wang, Lixin Meng, Lizhong Zhang, Jianan Wang, Tun Zhang. Design and simulation of hard coating damping vibration for secondary mirror support structure[J]. Infrared and Laser Engineering, 2021, 50(12): 20210344
Paper Information
Category: Optical design
Received: May. 28, 2021
Accepted: --
Published Online: Feb. 9, 2022
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