航天器工程2024，Vol.33Issue(4)：25-33,9.DOI:10.3969/j.issn.1673-8748.2024.04.004
面向在轨组装结构的传感器优化布置方法
Optimal Sensor Placement for On-orbit Assembly Structures
摘要
Abstract
During the on-orbit assembly of large space structures,the configuration and dynamic characteristics continuously change,making a sensor layout optimized for one structure configu-ration unsuitable for others.To address this issue,a novel sensor placement algorithm,termed the Assembled Effective Independence(AEFI)method,is proposed.This method derives the as-sembly effective independence vector by weighted summation of the effective independent vectors for each structure configuration.The weighting coefficient is determined based on the number of target mode shapes.The optimal sensor layout is then determined using a backward sequential sensor placement algorithm.The proposed method is validated through a case study involving an on-orbit assembly space truss structure,considering three classical assembly stages:the"I"type,"I"type and"H"type truss structure.The modal assurance criterion and the condition number are employed to assess the sensor placement.The results demonstrate that the proposed method effectively enhances modal identification accuracy of structure configurations across all as-sembly stages.关键词
传感器优化布置/在轨组装/组装有效独立法/结构健康监测Key words
optimal sensor placement/on-orbit assembly/Assembly Effective Independence Method/structural health monitoring分类
航空航天引用本文复制引用
黄天翔,卫锦程,王磊,吴爽,李伟杰..面向在轨组装结构的传感器优化布置方法[J].航天器工程,2024,33(4):25-33,9.基金项目
国家自然科学基金资助项目(52102475) （52102475）
江苏省双创博士项目(JSSCBS20210163) （JSSCBS20210163）
中央高校基本科研业务费专项资金资助(NS2022064) （NS2022064）
