光学精密工程2026，Vol.34Issue(6)：874-890,17.DOI:10.37188/OPE.20263406.0874
空间微碎片撞击下铝基光学天线的损伤与杂散光特性
Damage and stray light characteristics of aluminum-based optical antennas under space micro-debris impacts
摘要
Abstract
To investigate the damage to optical components and the scattering effects on optical systems caused by hypervelocity impact from space debris,a systematic study was conducted on the damage mech⁃anisms and optical performance degradation effects of optical components subjected to hypervelocity im⁃pacts from space particles.This research employed a finite element method-smooth particle hydrodynam⁃ics(FEM-SPH)adaptive coupling approach,combined with hypervelocity impact experiments.This study investigates 2024-T3 aluminum particles within the size range of 0.1-1 mm,comprehensively exam⁃ining the influence of four parameters:particle size,impact velocity,angle of incidence,and particle mor⁃phology(SAVM).Numerical simulation results indicate that the diameter and depth of impact craters in⁃crease monotonically with particle size and impact velocity,with the most pronounced damage occurring at an incidence angle of approximately 25°.The morphology of different particles exerts a significant influ⁃ence on the extent of damage,with damage caused by elongated cylindrical particles being the most pro⁃nounced.The evolution of the debris cloud and surface uplift phenomena observed during the impact pro⁃cess are primarily attributed to the coupled effects of stress wave propagation,dynamic plastic flow of ma⁃terials,and SPH particle compression.Furthermore,by coupling the extracted damage morphology to the optical system model,the impact of surface defects caused by the collision on the system's optical perfor⁃mance was quantitatively analyzed.Research has revealed that when impact particle dimensions exceed 0.4 mm,the system extinction ratio(ER)diminishes markedly,falling below the engineering threshold of 40 dB.This paper establishes a complete analytical chain from hypervelocity impact simulation to damage morphology extraction and subsequent optical performance degradation.It provides theoretical foundations and methodological support for damage assessment and protective design of space optical components.关键词
空间碎片/HVI/FEM-SPH/光学性能退化/杂散光分析Key words
MMOD/HVI/FEM-SPH/degradation of optical performance/stray light分类
信息技术与安全科学引用本文复制引用
冯健飞,王金成,王孝坤,张志宇,王玉坤,薛栋林,张学军..空间微碎片撞击下铝基光学天线的损伤与杂散光特性[J].光学精密工程,2026,34(6):874-890,17.基金项目
国家自然科学基金资助项目(No.62127901,No.12003034) （No.62127901,No.12003034）
上海市在线检测与控制技术重点实验室(No.NO.ZX2023102) （No.NO.ZX2023102）
