[1]史治宇,张令弥,吕令毅.基于模态应变能诊断结构破损的修正方法[J].东南大学学报(自然科学版),2000,30(3):84-87.[doi:10.3969/j.issn.1001-0505.2000.03.018]
 Shi Zhiyu,Zhang Lingmi,Lu Lingyi.Improved Structural Damage Detection Method Based on Modal Strain Energy[J].Journal of Southeast University (Natural Science Edition),2000,30(3):84-87.[doi:10.3969/j.issn.1001-0505.2000.03.018]
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基于模态应变能诊断结构破损的修正方法()
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《东南大学学报(自然科学版)》[ISSN:1001-0505/CN:32-1178/N]

卷:
30
期数:
2000年第3期
页码:
84-87
栏目:
数学、物理学、力学
出版日期:
2000-05-20

文章信息/Info

Title:
Improved Structural Damage Detection Method Based on Modal Strain Energy
作者:
史治宇1 张令弥1 吕令毅2
1 南京航空航天大学飞行器系, 南京 210016; 2 东南大学土木工程学院, 南京 210096
Author(s):
Shi Zhiyu1 Zhang Lingmi1 Lu Lingyi2
1 Department of Aircraft Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016
2 College of Civil Engineering, Southeast University, Nanjing 210096
关键词:
结构振动 模态分析 故障诊断 模态应变能
Keywords:
structural vibration modal analysis damage detection modal strain energy
分类号:
O327;TU311.3
DOI:
10.3969/j.issn.1001-0505.2000.03.018
摘要:
针对单元模态应变能法诊断结构破损时由于模态截断引起的计算误差等问题,改进了求解系统特征向量导数的典型模态法,提出了仅用部分低阶模态来确定结构破损位置和大小的修正方法,从而减小了模态截断对诊断结果的影响.
Abstract:
An improved structural damage quantification algorithm is developed from authors’ previous study. One algorithm is proposed to modify the calculation of rate of change of eigenvectors by only using a part of lower analytical modes to reduce the truncation error.

参考文献/References:

[1] Doebling S W,Hemez F M,Peterson L D,et al.Improved damage location accuracy using strain energy-based on mode selection criteria.AIAA Journal,1997,35(4):693~699
[2] Stubbs N,Kim J T.Damage localization in structures without baseline modal parameters.AIAA Journal,1996,34(8):1644~1649
[3] 史治宇,罗绍湘,张令弥,等.由试验模态数据检测结构破损的位置和大小.南京航空航天大学学报,1997,29(1):71~78
[4] Law S S,Shi Z Y,Zhang L M.Structural damage detection from incomplete and noisy test data.Journal of Engineering Mechanics,ASCE,1998,124(11):1280~1288
[5] Shi Z Y,Law S S,Zhang L M.Structural damage localization from modal strain energy change.Journal of Sound and Vibration,1998,218(5):825~844
[6] 史治宇,罗绍湘,张令弥.结构破损定位的单元模态应变能变化率法.振动工程学报,1998,11(3):356~360
[7] 史治宇,吕令毅.由模态应变能法诊断结构破损的实验研究.东南大学学报,1999,29(2):134~138

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备注/Memo

备注/Memo:
基金项目:国家自然科学基金资助项目(19772016), 航空科学基金资助项目(98B52015).
第一作者:男,1967年生,博士,讲师.
更新日期/Last Update: 2000-05-20