光通信技术2025，Vol.49Issue(6)：37-42,6.DOI:10.13921/j.cnki.issn1002-5561.2025.06.007
空间激光通信载荷热学性能仿真模型修正以及在轨可靠性验证
Correction of thermal performance simulation model and on-orbit reliability verification for space laser communication payloads
何晓垒 1李宽 1唐鑫科 1苏瑞芝 1张昕 1周伟娟2
作者信息
- 1. 中国电子科技集团公司 第三十四研究所,广西 桂林 541004
- 2. 湖北航天技术研究院 总体设计所,武汉 430040
- 折叠
摘要
Abstract
To address the thermal runaway issue in spaceborne laser communication payloads caused by discrepancies between thermal simulation results and on-orbit actual temperatures,a simulation model correction and verification method based on on-orbit temperature data is proposed.A physical field thermal simulation model of the payload is established to analyze tempera-ture variations and fluctuations of internal temperature-sensitive components under thermal effects.By integrating thermal vacuum experimental data and employing a Bayesian inversion algorithm,the boundary conditions and material parameters of the simulation model are dynamically corrected,significantly improving the consistency between the model and measured data.The error of the corrected model is reduced from 15%to within 5%,with temperature deviations at key measurement points controlled within±1.5 ℃.Validation using on-orbit measured data from the laser communication terminal demonstrates that the corrected model accurately predicts the temperature field distribution of the payload under various on-orbit operating condi-tions.The measured operating temperature of the laser(22.3±2.1 ℃)closely matches the model-predicted value(22.0±1.8 ℃),with a temperature gradient error of only 0.1 ℃/m.关键词
激光通信/热仿真修正/在轨验证/贝叶斯反演/热-结构耦合Key words
laser communication/thermal simulation correction/on-orbit verification/Bayesian inversion/thermal-structural coupling分类
信息技术与安全科学引用本文复制引用
何晓垒,李宽,唐鑫科,苏瑞芝,张昕,周伟娟..空间激光通信载荷热学性能仿真模型修正以及在轨可靠性验证[J].光通信技术,2025,49(6):37-42,6.
