基于嵌入式结构健康监测系统的高斯混合模型结构损伤预警软件设计  

Design of GMM Damage Alarm Software Based on Embedded Structural Health Monitoring System

作　　者：房芳[1] 虞凯茜 邱雷[1] FANG Fang;YU Kaixi;QIU Lei(State Key Laboratory of Mechanics and Control for Aerospace Structures,Nanjing University of Aeronautics and Astronautics,Nanjing 210016,P.R.China)

机构地区：[1]南京航空航天大学航空航天结构力学及控制全国重点实验室,中国南京210016

出　　处：《Transactions of Nanjing University of Aeronautics and Astronautics》2023年第S02期62-68,共7页南京航空航天大学学报（英文版）

基　　金：supported by the National Natural Science Foundation of China(Nos.51921003,52275153,51975292);the Outstanding Youth Foundation of Jiangsu Province of China(No.BK20211519);Fundamental Research Funds for the Central Universities(No.1001-XAC21022);the Funding for Outstanding Doctoral Dissertation in Nanjing University of Aeronautics and Astronautics(NUAA)(No.BCXJ19-01);the Fund of Prospective Layout of Scientific Research for NUAA;the Priority Academic Program Development of Jiangsu Higher Education Institutions of China。

摘　　要：传统结构健康监测软件大多需要Windows操作系统运行环境支持,这种软件很难移植到嵌入式结构健康监测系统上。针对这个问题,在C语言环境下设计了基于高斯混合模型迁移的结构损伤预警软件。在将损伤预警软件集成到嵌入式结构健康监测系统后,通过变化载荷下飞行器典型耳片结构的损伤监测实验对软件监测功能进行了验证。验证结果表明所设计的软件可以在载荷变化下对耳片结构上出现的裂纹进行可靠高效的预警。Traditional structural health monitoring(SHM)software mainly runs on Windows operating systems,so it has large capacity and needs the support of operating environment.It is hard to transplant the existing SHM software to the embedded SHM system.A type of damage alarm software based on Gaussian mixture model(GMM)migration is designed in C language environment to make it convenient to integrate into the embedded SHM system.The proposed software is verified by the damage monitoring experiment on aircraft lug specimen under varying load,and the results demonstrate that the proposed software can realize effective and reliable structural damage alarm function.

关 键 词：结构健康监测 嵌入式系统 高斯混合模型 损伤预警 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]