飞行器框架模型结构振动形态感知与重构方法  

Method Verification of Vibration Shape Perception and Reconstruction for Aircraft Frame Model Structure

作　　者：易金聪[1,2] 朱晓锦[1] 张合生[1] 李丽[1] 徐金星[1] 

机构地区：[1]上海大学机电工程与自动化学院,上海200072 [2]福建农林大学计算机与信息学院,福州350002

出　　处：《振动．测试与诊断》2013年第4期582-587,722,共6页Journal of Vibration,Measurement & Diagnosis

基　　金：国家自然科学基金资助项目(90716027;51175319);上海市教育委员会科研创新重点资助项目(13ZZ075);福建省自然科学基金计划资助项目(项目编号:2012J01191);上海大学"十一五"211建设计划;上海市电站自动化技术重点实验室资助项目

摘　　要：基于光纤布拉格光栅(fiber Bragg grating,简称FBG)曲率检测技术探索智能结构振动状态主动监测,面向飞行器框架模型实现结构振动形态实时感知与三维重构的方法验证。阐述实验系统组成架构与FBG曲率检测单元阵列设计思想,以及实验框架模型结构振动形态三维重构方法的过程。在此基础上叙述FBG曲率检测单元阵列封装、结构形态重构算法的基本原理、实验环境与平台构建方案以及系统软件组成与开发技术。通过将模块化FBG检测单元阵列嵌入至实验模型结构中,结合结构变化形态感知与重构方法分析,进行了模型结构形态实时感知与三维重构方法的实验验证。实验结果表明了所研究的技术方法与实验验证系统的有效性,该方法为高性能飞行器关键结构振动形态的主动监测提供了探索思路。With the fiber bragg grating(FBG)based curvature detection technology,a new means of active vibration shape monitoring for intelligent structure is investigated.The method verification of vibration shape perception and reconstruction for experimental aircraft framework model is also presented.Ideas behind the design of construction composition of experiment system are introduced,along with the method and process of the three-dimension vibration shape reconstruction of experiment frame model.After that,the design,fabrication and encapsulation of the FBG curvature detection unit,principle of structure shape reconstruction algorithm,construction of the experimental environment platform,and the component and development technology of the software system are described.Using the FBG modular detection units embedded in the experimental frame model,combining the analysis of the structure vibration shape perception and reconstruction method,a detailed experimental verification study is conducted.The results of this experimental study demonstrate the feasibility and effectiveness of the proposed technical method and experimental verification system.Moreover,the corresponding technology and method can provide an effective exploration train of thought for the active monitoring of key structure of high performance aircraft.

关 键 词：高性能飞行器 框架模型结构 光纤布拉格光栅曲率检测 振动形态感知与重构 

分 类 号：TN253[电子电信—物理电子学] TP391.4[自动化与计算机技术—计算机应用技术]