分阶段结构损伤诊断方法
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摘要
在现有分步损伤诊断方法的基础上,提出了一种3阶段结构损伤诊断方法。通过对遗传算法的特点进行分析,提出以逐步评定并排除无损单元的思路来处理结构损伤诊断问题。提出的分步方法中,应用了多次灵敏度遗传算法计算来进行无损单元排除,同时结合残余力向量指标对损伤大致位置进行判断。算例证明,在单纯用1种方法难以完成损伤诊断的情况下,用分步处理的方法能得到很好的效果,同时表明了多次灵敏度遗传算法计算是逐步排除无损单元的有效途径。
Base on the existing step-by-step structural damage diagnosis method,a three-step structural damage diagnosis method is developed.According to the analysis of the characteristic of genetic algorithm,a new idea of excluding the undamaged element by means of step-by-step evaluation is developed to deal with the damage diagnosis problem.In this method,sensitivity genetic algorithm is used to exclude the undamaged element step by step and residual force method is used to fix the damage district.According to the simulation research of a 2D framed structure,it is shown that the step-by-step structural damage diagnosis method can gain the ideal results when it's difficult for a single damage diagnosis method to get the good results.It is also indicated that sensitivity genetic algorithm is a good way to exclude the undamaged element step by step.
Base on the existing step-by-step structural damage diagnosis method,a three-step structural damage diagnosis method is developed.According to the analysis of the characteristic of genetic algorithm,a new idea of excluding the undamaged element by means of step-by-step evaluation is developed to deal with the damage diagnosis problem.In this method,sensitivity genetic algorithm is used to exclude the undamaged element step by step and residual force method is used to fix the damage district.According to the simulation research of a 2D framed structure,it is shown that the step-by-step structural damage diagnosis method can gain the ideal results when it's difficult for a single damage diagnosis method to get the good results.It is also indicated that sensitivity genetic algorithm is a good way to exclude the undamaged element step by step.
引文
[1]LIM T W.Structural damage detection using constrainedeigenstructure assignment[J].Journal of Guidance,Control and Dynamics,1995,18:411-418.
[2]MORASSI A,ROVERE N.Localizing a notch in asteel frame from frequency measurements[J].Journalof Engineering Mechanics,1997,123(5):422-432.
[3]TORKAMANI M A M,AHMADIA K.Stiffnessidentification of frame using simulated ground excitation[J].Journal of Engineering Mechanics,1998,114(5):753-776.
[4]MESSINA A,WILLIAMS E J,CONTURSI T.Structuraldamage detection by a sensitivity and statistical-based method[J].Journal of Sound and Vibration,1998,216(5):791-805.
[5]ZAPICO J L,GONZA M P.Damage assessment usingneural networks[J].Mechanical Systems and SignalProcessing,2003,17(1):119-125.
[6]CHUNG-BANG YUN,JIN-HAK Y,BAHNG E Y.Joint damage assessment of framed structures using aneural networks technique[J].Engineering Structures,2001,23:425-435.
[7]CHUNG-BANG YUN,BAHNG E Y.Substructuralidentification using neural networks[J].Computers andstructures,2000,77:41-52.
[8]瞿伟廉,黄东海.大型复杂结构的两阶段损伤诊断方法[J].世界地震工程.2003,19(2):72-78.QU WEI-LIAN,HUANG DONG-HAI.Two-stepdamage diagnosis methods of large and complexstructures[J].World Information On EarthquakeEngineering,2003,19(2):72-78.
[9]谢峻,韩大建,周毅妹.整合统计的结构损伤动力诊断三步法[J].振动与冲击,2004,23(4):119-122.XIE JUN,HAN DA-JIAN,ZHOU YI-MEI.Threesteps method integrated with statistical techniques forstructural damage diagnosis[J].Journal of Vibrationand Shock,2004,23(4):119-122.
[10]郭惠勇,张陵,蒋建.基于遗传算法的二阶段结构损伤探测方法[J].西安交通大学学报,2005,39(5):485-489.GUO HUI-YONG,ZHANG LING,JIANG JIAN.Two-stage structural damage detection method withgenetic Algorithms[J].Journal of Xian JiaotongUniversity,2005,39(5):485-489.
[11]王柏生,倪一清,高赞明.青马大桥桥板结构损伤位置识别的数值模拟[J].土木工程学报,2001,34(3):68-72.WANG BAI-SHENG,NI YI-QING,GAO ZAN-MING.Numerical study of damage localization for tsingma bridge deck[J].China Civil Engineering Journal,2001,34(3):68-72.
[12]高赞明,孙宗光,倪一清.基于振动方法的汲水门大桥损伤检测研究[J].地震工程与工程振动,2001,21(4):118-124.GAO ZAN-MING,SUN ZONG-GUANG,NI YI-QING.Simulation of damage identification usingvibration-based method for Kap Shui Mun bridge[J].Earthquake Engineering and Engineering Vibration,2001,21(4):118-124.
[13]瞿伟廉,陈伟,李秋胜.基于神经网络技术的复杂框架结构节点损伤的两步诊断法[J].土木工程学报,2003,36(5):37-44.QU WEI-LIAN,CHEN-WEI,LI QIU-SHENG.Two-step approach for joints damage diagnosis of framedstructures by artificial neural networks[J].China CivilEngineering Journal,2003,36(5):37-44.
[14]杨秋伟.结构损伤的一种两阶段诊断方法[J].机械强度.2008,30(4):555-558.YANG QIU-WEI.Two-stage approach for structuraldamage diagnosis using incomplete modal parameters[J].Journal of Mechanical Strength,2008,30(4):555-558.
[15]李文雄,陈存恩.结构动力反演计算的灵敏度遗传算法研究[J].重庆建筑大学学报,2008,30(2):80-84.LI WEN-XIONG,CHEN CUN-EN.Research ofsensitivity genetic algorithm for inverse computation ofstructure[J].Journal of Chongqing Jianzhu University,2008,30(2):80-84.
[16]郭佳凡,于吉全.基于遗传算法的大型钢塔结构的节点损伤参数识别方法[J].湖北大学学报:自然科学版,2009,31(4):380-383.GUO JIA-FAN,YU JI-QUAN.Recognition approachof joint damage parameters in high-rising towerstructures on the basis of genetic algorithms[J].Journal of Hubei University:Natural Science,2009,31(4):380-383.
[17]FRISWELL MI,PENNY JET,GARVEY SD.Acombined genetic and eigensensitivity algorithm for thelocation of damage in structures[J].Computers andStructures,1998,69:547-556.
[18]HONG HAO,M.ASCE,YONG XIA.Vibration-based damage detection of structures by geneticalgorithm[J].Journal of Computer in Civil Engineering,2002(7):222-229.
[19]CHOU JUNG-HUAI,GHABOUSSI J.Geneticalgorithm in structural damage detection[J].Computersand Structures,2001,79:1335-1353.
[20]ANANDA RAO M,SRINIVAS J,B S N.Murthydamage detection in vibrating bodies using geneticalgorithms[J].Computers and Structures,2004,82:963-968.
[21]邹大力,屈福政.基于修正模态的混合遗传算法结构损伤识别[J].大连理工大学学报,2005,45(3):362-365.ZHOU DA-LI,QU FU-ZHENG.Structural damagedetection using updated modes based on hybrid geneticalgorithm[J].Journal of Dalian University ofTechnology,2005,45(3):362-365.
[22]李晓妮,张景绘.模态噪声影响下基于残余力向量的损伤识别[J].广西工学院学报,2008,19(4):1-4.LI XIAO-NI,ZHANG JING-HUI.Damageidentification based on residual force vector with noisymodal data[J].Journal of Guangxi University ofTechnology,2008,19(4):1-4.
[23]刁延松,李华军,李军,等.一种框架结构损伤诊断两步法[J].工业建筑,2005(S):966-969.DIAO YAN-SONG,LI HUA-JUN,LI JUN,SUNSHAODONG.A two-step damage detection approachfor frame structure[J].Industrial Construction,2005(S1):966-969.
[24]邹万杰,瞿伟廉,罗臻.基于改进残余力向量法的桁架结构损伤诊断[J].力学与实践,2009,31(4):41-44.ZOU WAN-JIE,QU WEI-LIAN,LUO ZHEN.Damagedetection for truss structures based on improved residualforce vector method[J].Mechanics in Engineering,2009,31(4):41-44.
[25]陈龙珠,王建民,葛炜.结构动力参数灵敏度的合理分析[J].土木工程学报,2003,36(11):50-54.CHEN LONG-ZHU,WANG JIAN-MIN,GE WEI.Rational analysis for sensitivity of structural dynamicparameters[J].China Civil Engineering Journal,2003,36(11):50-54.
[2]MORASSI A,ROVERE N.Localizing a notch in asteel frame from frequency measurements[J].Journalof Engineering Mechanics,1997,123(5):422-432.
[3]TORKAMANI M A M,AHMADIA K.Stiffnessidentification of frame using simulated ground excitation[J].Journal of Engineering Mechanics,1998,114(5):753-776.
[4]MESSINA A,WILLIAMS E J,CONTURSI T.Structuraldamage detection by a sensitivity and statistical-based method[J].Journal of Sound and Vibration,1998,216(5):791-805.
[5]ZAPICO J L,GONZA M P.Damage assessment usingneural networks[J].Mechanical Systems and SignalProcessing,2003,17(1):119-125.
[6]CHUNG-BANG YUN,JIN-HAK Y,BAHNG E Y.Joint damage assessment of framed structures using aneural networks technique[J].Engineering Structures,2001,23:425-435.
[7]CHUNG-BANG YUN,BAHNG E Y.Substructuralidentification using neural networks[J].Computers andstructures,2000,77:41-52.
[8]瞿伟廉,黄东海.大型复杂结构的两阶段损伤诊断方法[J].世界地震工程.2003,19(2):72-78.QU WEI-LIAN,HUANG DONG-HAI.Two-stepdamage diagnosis methods of large and complexstructures[J].World Information On EarthquakeEngineering,2003,19(2):72-78.
[9]谢峻,韩大建,周毅妹.整合统计的结构损伤动力诊断三步法[J].振动与冲击,2004,23(4):119-122.XIE JUN,HAN DA-JIAN,ZHOU YI-MEI.Threesteps method integrated with statistical techniques forstructural damage diagnosis[J].Journal of Vibrationand Shock,2004,23(4):119-122.
[10]郭惠勇,张陵,蒋建.基于遗传算法的二阶段结构损伤探测方法[J].西安交通大学学报,2005,39(5):485-489.GUO HUI-YONG,ZHANG LING,JIANG JIAN.Two-stage structural damage detection method withgenetic Algorithms[J].Journal of Xian JiaotongUniversity,2005,39(5):485-489.
[11]王柏生,倪一清,高赞明.青马大桥桥板结构损伤位置识别的数值模拟[J].土木工程学报,2001,34(3):68-72.WANG BAI-SHENG,NI YI-QING,GAO ZAN-MING.Numerical study of damage localization for tsingma bridge deck[J].China Civil Engineering Journal,2001,34(3):68-72.
[12]高赞明,孙宗光,倪一清.基于振动方法的汲水门大桥损伤检测研究[J].地震工程与工程振动,2001,21(4):118-124.GAO ZAN-MING,SUN ZONG-GUANG,NI YI-QING.Simulation of damage identification usingvibration-based method for Kap Shui Mun bridge[J].Earthquake Engineering and Engineering Vibration,2001,21(4):118-124.
[13]瞿伟廉,陈伟,李秋胜.基于神经网络技术的复杂框架结构节点损伤的两步诊断法[J].土木工程学报,2003,36(5):37-44.QU WEI-LIAN,CHEN-WEI,LI QIU-SHENG.Two-step approach for joints damage diagnosis of framedstructures by artificial neural networks[J].China CivilEngineering Journal,2003,36(5):37-44.
[14]杨秋伟.结构损伤的一种两阶段诊断方法[J].机械强度.2008,30(4):555-558.YANG QIU-WEI.Two-stage approach for structuraldamage diagnosis using incomplete modal parameters[J].Journal of Mechanical Strength,2008,30(4):555-558.
[15]李文雄,陈存恩.结构动力反演计算的灵敏度遗传算法研究[J].重庆建筑大学学报,2008,30(2):80-84.LI WEN-XIONG,CHEN CUN-EN.Research ofsensitivity genetic algorithm for inverse computation ofstructure[J].Journal of Chongqing Jianzhu University,2008,30(2):80-84.
[16]郭佳凡,于吉全.基于遗传算法的大型钢塔结构的节点损伤参数识别方法[J].湖北大学学报:自然科学版,2009,31(4):380-383.GUO JIA-FAN,YU JI-QUAN.Recognition approachof joint damage parameters in high-rising towerstructures on the basis of genetic algorithms[J].Journal of Hubei University:Natural Science,2009,31(4):380-383.
[17]FRISWELL MI,PENNY JET,GARVEY SD.Acombined genetic and eigensensitivity algorithm for thelocation of damage in structures[J].Computers andStructures,1998,69:547-556.
[18]HONG HAO,M.ASCE,YONG XIA.Vibration-based damage detection of structures by geneticalgorithm[J].Journal of Computer in Civil Engineering,2002(7):222-229.
[19]CHOU JUNG-HUAI,GHABOUSSI J.Geneticalgorithm in structural damage detection[J].Computersand Structures,2001,79:1335-1353.
[20]ANANDA RAO M,SRINIVAS J,B S N.Murthydamage detection in vibrating bodies using geneticalgorithms[J].Computers and Structures,2004,82:963-968.
[21]邹大力,屈福政.基于修正模态的混合遗传算法结构损伤识别[J].大连理工大学学报,2005,45(3):362-365.ZHOU DA-LI,QU FU-ZHENG.Structural damagedetection using updated modes based on hybrid geneticalgorithm[J].Journal of Dalian University ofTechnology,2005,45(3):362-365.
[22]李晓妮,张景绘.模态噪声影响下基于残余力向量的损伤识别[J].广西工学院学报,2008,19(4):1-4.LI XIAO-NI,ZHANG JING-HUI.Damageidentification based on residual force vector with noisymodal data[J].Journal of Guangxi University ofTechnology,2008,19(4):1-4.
[23]刁延松,李华军,李军,等.一种框架结构损伤诊断两步法[J].工业建筑,2005(S):966-969.DIAO YAN-SONG,LI HUA-JUN,LI JUN,SUNSHAODONG.A two-step damage detection approachfor frame structure[J].Industrial Construction,2005(S1):966-969.
[24]邹万杰,瞿伟廉,罗臻.基于改进残余力向量法的桁架结构损伤诊断[J].力学与实践,2009,31(4):41-44.ZOU WAN-JIE,QU WEI-LIAN,LUO ZHEN.Damagedetection for truss structures based on improved residualforce vector method[J].Mechanics in Engineering,2009,31(4):41-44.
[25]陈龙珠,王建民,葛炜.结构动力参数灵敏度的合理分析[J].土木工程学报,2003,36(11):50-54.CHEN LONG-ZHU,WANG JIAN-MIN,GE WEI.Rational analysis for sensitivity of structural dynamicparameters[J].China Civil Engineering Journal,2003,36(11):50-54.
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