含区间参数不确定结构的损伤识别方法
Damage detection of structures with interval uncertain parameters
查看参考文献20篇
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文摘
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针对损伤识别中遇到的含统计信息不足的不确定参数的结构,以区间向量来描述其中的不确定参数。基于有限元理论给出了应变模态的测试方法,进一步将应变模态表示为区间参数的函数,结合一阶Taylor展开与区间分析,计算了参数不确定条件下应变模态的界限,给出了一种考虑参数不确定的结构损伤识别方法,并在理论上对比分析了与基于概率方法的区别与联系。为验证方法的合理性,对简支梁在不同位置损伤的情况进行了数值模拟,分析了不同损伤程度以及参数不同不确定程度下简支梁应变模态的变化规律,简要讨论了噪声对识别准确性的影响。为含不确定参数的结构的损伤识别提供了一种新的方法和思路。 |
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其他语种文摘
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To deal with structures with uncertain parameter which often lacks sufficient statistical information in damage detection, the uncertain parameters were modeled as interval numbers. The structural strain modal testing method was introduced using finite element method, and the strain modal was further expressed as the function of the interval parameter. Combined with the first order Taylor expansion and interval analysis, the range of each strain modal under parameter uncertainty is estimated, and thus we obtained an approach for structural damage detection considering uncertainty. Comparison between the proposed method and the traditional probabilistic method was conducted. Numerical simulations of a simply supported beam under different damage were performed by investigating the change of strain modes due to different damage levels and uncertainty levels. The influence rules of damage and uncertainty on strain modal were obtained, and a brief discussion of the impact of noise on damage detection was performed. The work of this paper provides a new technique and thought for damage detection of uncertain structures. |
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来源
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北京航空航天大学学报
,2016,42(7):1509-1517 【核心库】
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DOI
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10.13700/j.bh.1001-5965.2015.0398
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关键词
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损伤识别
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不确定参数
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区间分析
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有限元法
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模态分析
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地址
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1.
北京航空航天大学航空科学与工程学院, 北京, 100083
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中国科学院沈阳自动化研究所, 机器人学国家重点实验室, 沈阳, 110016
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语种
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中文 |
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文献类型
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研究性论文 |
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ISSN
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1001-5965 |
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学科
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力学;航空 |
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基金
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国家自然科学基金
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国防基础科研项目
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国家教育部高等学校学科创新引智计划项目
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文献收藏号
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CSCD:5761944
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参考文献 共
20
共1页
|
|
1.
Doebling S W. A summary review of vibration-based damage identification methods.
Shock and Vibration Digest,1998,30(2):91-105
|
被引
188
次
|
|
|
|
|
2.
Liu Y. Structural health monitoring:State of the art and perspectives.
Journal of the Minerals,Metals and Materials Society,2012,64(7):789-792
|
被引
1
次
|
|
|
|
|
3.
郑栋梁. 结构早期损伤识别技术的现状和发展趋势.
振动与冲击,2002,21(2):1-6
|
被引
41
次
|
|
|
|
|
4.
Salawu O S. Detection of structural damage through changes in frequency:A review.
Engineering Structures,1997,19(9):718-723
|
被引
149
次
|
|
|
|
|
5.
Ou J. Structural health monitoring in mainland China:Review and future trends.
Structural Health Monitoring,2010,9(3):219-231
|
被引
5
次
|
|
|
|
|
6.
李德葆.
实验模态分析及其应用,2001:29-36
|
被引
1
次
|
|
|
|
|
7.
Chondros T G. Identification of cracks in welded joints of complex structures.
Journal of Sound and Vibration,1980,69(4):531-538
|
被引
11
次
|
|
|
|
|
8.
Cawley P. The location of defects in structures from measurements of natural frequencies.
The Journal of Strain Analysis for Engineering Design,1979,14(2):49-57
|
被引
129
次
|
|
|
|
|
9.
Adams R D. A vibration technique for non-destructively assessing the integrity of structures.
Journal of Mechanical Engineering Science,1978,20(2):93-100
|
被引
30
次
|
|
|
|
|
10.
Zhu H P. Detection of structural damage through changes in frequency.
Wuhan University Journal of Natural Sciences,2005,10(6):1069-1073
|
被引
2
次
|
|
|
|
|
11.
杜思义. 基于频率二阶摄动的结构损伤识别方法.
应用力学学报,2007,23(4):613-617
|
被引
1
次
|
|
|
|
|
12.
Yi T H. Optimal sensor placement for structural health monitoring based on multiple optimization strategies.
Structural Design of Tall and Special Buildings,2011,20(7):881-900
|
被引
4
次
|
|
|
|
|
13.
Allemang R J. The modal assurance criterion-twenty years of use and abuse.
Sound and Vibration,2003,37(8):14-23
|
被引
10
次
|
|
|
|
|
14.
董聪. 结构损伤识别和定位的基本原理与方法.
中国铁道科学,1999,20(3):89-94
|
被引
19
次
|
|
|
|
|
15.
Qiu Z P. Natural frequencies of structures with uncertain but nonrandom parameters.
Journal of Optimization Theory and Applications,1995,86(3):669-683
|
被引
26
次
|
|
|
|
|
16.
宗周红. 基于模型确认的结构概率损伤识别方法研究进展.
土木工程学报,2012,45(8):121-130
|
被引
23
次
|
|
|
|
|
17.
林秀萍.
基于概率统计方法的结构损伤识别研究,2009:15-20
|
被引
1
次
|
|
|
|
|
18.
Palma R. Probabilistic inverse problem and system uncertainties for damage detection in piezoelectrics.
Mechanics of Materials,2009,41(9):1000-1016
|
被引
1
次
|
|
|
|
|
19.
村井秀児. ダイナミックデザインアナリシスの研究(パート2).
コマツ技報,1979,25(2):73-82
|
被引
1
次
|
|
|
|
|
20.
顾培英.
基于应变模态技术的结构损伤诊断直接指标法研究,2006:28-33
|
被引
1
次
|
|
|
|
|
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