中国科技论文
中國科技論文
중국과기논문
China Sciencepaper
2015年
17期
2039-2045
,共7页
振动与波%结构健康监测系统%模态参数识别%损伤识别%振型动画显示
振動與波%結構健康鑑測繫統%模態參數識彆%損傷識彆%振型動畫顯示
진동여파%결구건강감측계통%모태삼수식별%손상식별%진형동화현시
vibration and waves%structural health monitoring system%modal parameter identification%damage detection%anima-tion display of mode shape
为采集反应结构服役状况的相关数据，发现结构的损伤并评估其安全性，本文研究了空间网格结构健康监测系统的设计和具体实现方法，阐述了空间网格结构健康监测系统的基本组成和监测内容，将健康监测系统开发的重点放在数据处理、模态分析和损伤识别等模块上，成功地开发了一套基于 MATLAB 的结构模态分析与损伤识别系统（Structural Modal Analysis and Damage Identification System-SMADIS 1．0）。软件主要功能包括：环境振动实测数据的预处理、时频域数据分析、模态参数识别、结果后处理及振型动画显示、模型缩聚和实测振型扩充、有限元模型修正、有限元数据提取、损伤定位及评估等。结果表明：整个软件系统采用模块化的程序设计理念，具有功能全面、界面友好、灵活实用和可继承性等特点，值得在结构健康监测领域进行推广。
為採集反應結構服役狀況的相關數據，髮現結構的損傷併評估其安全性，本文研究瞭空間網格結構健康鑑測繫統的設計和具體實現方法，闡述瞭空間網格結構健康鑑測繫統的基本組成和鑑測內容，將健康鑑測繫統開髮的重點放在數據處理、模態分析和損傷識彆等模塊上，成功地開髮瞭一套基于 MATLAB 的結構模態分析與損傷識彆繫統（Structural Modal Analysis and Damage Identification System-SMADIS 1．0）。軟件主要功能包括：環境振動實測數據的預處理、時頻域數據分析、模態參數識彆、結果後處理及振型動畫顯示、模型縮聚和實測振型擴充、有限元模型脩正、有限元數據提取、損傷定位及評估等。結果錶明：整箇軟件繫統採用模塊化的程序設計理唸，具有功能全麵、界麵友好、靈活實用和可繼承性等特點，值得在結構健康鑑測領域進行推廣。
위채집반응결구복역상황적상관수거，발현결구적손상병평고기안전성，본문연구료공간망격결구건강감측계통적설계화구체실현방법，천술료공간망격결구건강감측계통적기본조성화감측내용，장건강감측계통개발적중점방재수거처리、모태분석화손상식별등모괴상，성공지개발료일투기우 MATLAB 적결구모태분석여손상식별계통（Structural Modal Analysis and Damage Identification System-SMADIS 1．0）。연건주요공능포괄：배경진동실측수거적예처리、시빈역수거분석、모태삼수식별、결과후처리급진형동화현시、모형축취화실측진형확충、유한원모형수정、유한원수거제취、손상정위급평고등。결과표명：정개연건계통채용모괴화적정서설계이념，구유공능전면、계면우호、령활실용화가계승성등특점，치득재결구건강감측영역진행추엄。
To collect the data which can represent the structural service conditions,locate the damage in the structure and evaluate its safety,the design and realization method of SHM System on spatial lattice structure are proposed in this paper,and the basic structure and monitoring content of SHM System are also studied in this paper.The emphasis of SHM System is put on three modules which are data processing,modal analysis and damage detection.Then Structural Modal Analysis and Damage Identifica-tion System (SMADIS 1.0)is developed based on MATLAB program.The main functions are the measured data preprocessing, data analysis in time domain and frequency domain,modal parameters identification,results post processing,animate display of the mode shape,model reduction and mode shape expansion,model updating,damage location and evaluation.Results show that SMADIS 1.0 is valued to popularize in the structural health monitoring field because it has the characteristics such as modulariza-tion,abundant functions,friendly interface,flexibility and inheritability.
