DAMAGE IDENTIFICATION METHOD BASED ON CROSS MODEL CROSS MODAL METHOD AND L<sub>1</sub> REGULARIZATION

JIN BangHu; SONG YanPeng; QIU Hu

doi:10.16579/j.issn.1001.9669.2023.06.032

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DAMAGE IDENTIFICATION METHOD BASED ON CROSS MODEL CROSS MODAL METHOD AND L₁ REGULARIZATION

更新时间：2024-06-07

- DAMAGE IDENTIFICATION METHOD BASED ON CROSS MODEL CROSS MODAL METHOD AND L₁ REGULARIZATION
- Journal of Mechanical Strength Vol. 45, Issue 6, Pages: 1509-1513(2023)
- 作者机构：
  
  1. 武汉华夏理工学院土木建筑工程学院
  2. 武汉工程大学邮电与信息工程学院建筑工程学院
  3. 武汉工程大学土木工程与建筑学院
  4. 国网电力科学研究院武汉南瑞有限责任公司
- 作者简介：
- 基金信息：
- DOI：10.16579/j.issn.1001.9669.2023.06.032
  CLC： TU317
- Published：15 December 2023，
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JIN BangHu, SONG YanPeng, QIU Hu. DAMAGE IDENTIFICATION METHOD BASED ON CROSS MODEL CROSS MODAL METHOD AND L₁ REGULARIZATION. [J]. Journal of Mechanical Strength 45(6):1509-1513(2023)
DOI：

JIN BangHu, SONG YanPeng, QIU Hu. DAMAGE IDENTIFICATION METHOD BASED ON CROSS MODEL CROSS MODAL METHOD AND L₁ REGULARIZATION. [J]. Journal of Mechanical Strength 45(6):1509-1513(2023) DOI： 10.16579/j.issn.1001.9669.2023.06.032.

摘要

提出了一种用交叉模型交叉模态(Cross Model Cross Mode

CMCM)方法与L

正则化结合的损伤识别方法。首先介绍了CMCM方法的基本原理，以及L

正则化与L

正则化的特点。然后通过一个实验室的钢框架结构对提出的方法进行了验证。结果表明，CMCM方法与L

正则化结合容易造成非损伤单元的误判，而在CMCM方法中使用L

正则化则能更准确地识别结构的损伤。即使仅用第一阶测量模态，用L

正则化技术求解CMCM方程也能很准确地识别框架结构的损伤。

Abstract

A damage identification method based on CMCM and L

regularization is proposed. Firstly

the basic principle of cross modal method and the characteristics of L

regularization and L

regularization are introduced. The proposed method was then validated with a steel frame structure in a laboratory. The results show that the combination of CMCM and L

regularization can easily lead to misjudgment of undamaged elements

while L

regularization in CMCM can identify structural damage more accurately. Even if only the first measurement mode is used

he L

regularization technique can be used to solve the CMCM equation to accurately identify the damage of the frame structure.

关键词

L1正则化损伤识别交叉模型交叉模态模型修正

Keywords

L1 regularizationDamage identificationCross model cross mode (CMCM)Model updating

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DAMAGE IDENTIFICATION METHOD BASED ON CROSS MODEL CROSS MODAL METHOD AND L1 REGULARIZATION

DOI：10.16579/j.issn.1001.9669.2023.06.032

摘要

Abstract

关键词

Keywords

references

DAMAGE IDENTIFICATION METHOD BASED ON CROSS MODEL CROSS MODAL METHOD AND L₁ REGULARIZATION