DAMAGE IDENTIFICATION METHOD BASED ON CROSS MODEL CROSS MODAL METHOD AND L<sub>1</sub> REGULARIZATION: Fid-Bau Portal

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

JIN BangHu / SONG YanPeng / QIU Hu

A damage identification method based on CMCM and L₁ regularization is proposed. Firstly, the basic principle of cross modal method and the characteristics of L₂ regularization and L₁ 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 L₂ regularization can easily lead to misjudgment of undamaged elements, while L₁ regularization in CMCM can identify structural damage more accurately. Even if only the first measurement mode is used, the L₁ regularization technique can be used to solve the CMCM equation to accurately identify the damage of the frame structure.

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

JIN BangHu / SONG YanPeng / QIU Hu

A damage identification method based on CMCM and L₁ regularization is proposed. Firstly, the basic principle of cross modal method and the characteristics of L₂ regularization and L₁ 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 L₂ regularization can easily lead to misjudgment of undamaged elements, while L₁ regularization in CMCM can identify structural damage more accurately. Even if only the first measurement mode is used, the L₁ regularization technique can be used to solve the CMCM equation to accurately identify the damage of the frame structure.

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

JIN BangHu / SONG YanPeng / QIU Hu

A damage identification method based on CMCM and L₁ regularization is proposed. Firstly, the basic principle of cross modal method and the characteristics of L₂ regularization and L₁ 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 L₂ regularization can easily lead to misjudgment of undamaged elements, while L₁ regularization in CMCM can identify structural damage more accurately. Even if only the first measurement mode is used, the L₁ regularization technique can be used to solve the CMCM equation to accurately identify the damage of the frame structure.

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Title:

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

Contributors:

JIN BangHu (author) / SONG YanPeng (author) / QIU Hu (author)

Published in:

Jixie qiangdu, Vol 45, Pp 1509-1513 (2023)

Publication date:

2023

ISSN:

Type of media:

Article (Journal)

Type of material:

Electronic Resource

Language:

Unknown

Keywords:

L1 regularization , Damage identification , Cross model cross mode (CMCM) , Model updating , Mechanical engineering and machinery , TJ1-1570 , Materials of engineering and construction. Mechanics of materials , TA401-492

Metadata by DOAJ is licensed under CC BY-SA 1.0

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