Precision manufacturing of metal mirrors based on additive manufacturing

Chen, Wen-Cong; Sun, Lijun; Liu, Siyuan; Wu, Jiu Hui; Zhang, Zhaohui

doi:10.1117/12.2625102

Cited by 1 publication

(1 citation statement)

References 3 publications

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“…The outer envelope of the camera is 430 mm × 370 mm × 450 mm, with a weight of only 13.5 kg [36]. Design and manufacturing methods that integrate optimization with additive manufacturing technology are used to meet the design requirements of being lightweight and displaying high surface-shape accuracy with space mirrors [37][38][39].…”

Section: Literature Reviewmentioning

confidence: 99%

Design and Optimization of Thin-Walled Main Support Structure for Space Camera Based on Additive Manufacturing

Peng,

Liu,

Wang

et al. 2024

Micromachines

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In order to solve the design requirements of high stiffness and lightweight for the primary support structure of a wide-field auroral imager, we propose a solution for designing and optimizing a large-scale complex thin-walled structure using additive manufacturing. Firstly, we devise an integrated thin-walled structure and test material for the main support. Secondly, shape optimization is achieved via the optimization of the lateral slope angle of the primary support based on Timoshenko cantilever beam theory. Additionally, an active fitting optimization algorithm is proposed for the purpose of refining the wall thickness of the thin-walled structure. Then, we determine the structural design of the main support. This primary support is manufactured via selective laser melting (SLM). Following processing, the structure size is 538 mm × 400 mm × 384 mm, and the mass is 7.78 kg. Finally, frequency scanning experiments indicate that, in the horizontal direction, there is a natural frequency of 105.97 Hz with an error rate of approximately 3% compared to finite element analysis results. This research confirms that our large-scale complex, thin-walled main support structure design meets all design requirements.

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