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Design analysis and test verification of a rigid-flexible, dual-mode coupling support structure for space-based
Applied Optics
|October 6, 2021
Summary
A novel rigid-flexible, dual-mode coupling support structure was developed for space remote sensor optical components. This structure ensures high reliability and stability, exceeding design requirements in rigorous testing.
Area of Science:
- Optics
- Mechanical Engineering
- Aerospace Engineering
Background:
- Space remote sensors require highly reliable and stable optical component support.
- Existing support structures may face limitations in meeting stringent space environment demands.
Purpose of the Study:
- To design and validate a rigid-flexible, dual-mode coupling support structure for space-based rectangular curved prisms (SRCPs).
- To ensure high reliability and stability for optical components in space applications.
Main Methods:
- Finite element analysis (FEA) for static and dynamic simulations of the mirror subassembly.
- Design optimization of the flexible adhesive structure.
- Experimental verification including mechanical and bonding tests.
Main Results:
- The designed support structure achieved a surface shape error of 0.021λ and mirror body displacement of 0.008 mm.
- Key performance indicators such as fundamental frequency (283 Hz) and acceleration amplification (4.37) surpassed design requirements.
- Tests confirmed the reliability, stability, and universal applicability of the support structure for various prism types.
Conclusions:
- The developed rigid-flexible, dual-mode peripheral bonding support structure effectively meets the demanding requirements of space remote sensors.
- The structure demonstrates robust performance and broad applicability for optical components in space missions.
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