Optomechanical integrated performance analysis and optimization of a greenhouse gas absorption spectrometer

• Published in: Optik (Stuttgart) 2023-12, Vol.295, p.171489, Article 171489
• Main Authors: Wang, Zengwei, Ding, Lei, Cheng, Long, Li, Shizhao, Lei, Songtao
• Format: Article
• Language: English
• Subjects: Greenhouse gas absorption spectrometer; Kriging; Lightweight design; Multidisciplinary design optimization; Thermal-structural-optical
• ISSN: 0030-4026; 1618-1336
• DOI: 10.1016/j.ijleo.2023.171489

of a space-borne opomechanical system with high spatial resolution, spectral resolution and quality imagery demands a tightly integrated performance optimization method to expand the design space and improve the optical performance of the system. In this paper, a Kriging-based method is proposed for optomechanical integrated performance optimization of a greenhouse gas absorption spectrometer (GGAS). The proposed method combines the thermal-structural-optical (TSO) integrated analysis method and the Kriging meta-modeling technique, in which the latter one is used to replace the former analysis process and approximates the I/O functions implied in the underlying TSO simulation model. Structural deformation characteristics and optical performance of GGAS are evaluated firstly. Then, optomechanical structural optimization of GGAS is carried out to achieve lightweight of three sub-benches. Results show that the proposed method is able to reduce the weight of three sub-benches by 11.85% compared to the common opomechanical design method while satisfying almost the same constraints.