DAMAGE IDENTIFICATION METHOD BASED ON CROSS MODEL CROSS MODAL METHOD AND L<sub>1</sub> REGULARIZATION
A damage identification method based on CMCM and L<sub>1</sub> regularization is proposed. Firstly, the basic principle of cross modal method and the characteristics of L<sub>2</sub> regularization and L<sub>1</sub> regularization are introduced. The proposed meth...
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| Main Authors: | , , |
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| Format: | Article |
| Language: | zho |
| Published: |
Editorial Office of Journal of Mechanical Strength
2023-12-01
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| Series: | Jixie qiangdu |
| Subjects: | |
| Online Access: | http://www.jxqd.net.cn/thesisDetails#10.16579/j.issn.1001.9669.2023.06.032 |
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| Summary: | A damage identification method based on CMCM and L<sub>1</sub> regularization is proposed. Firstly, the basic principle of cross modal method and the characteristics of L<sub>2</sub> regularization and L<sub>1</sub> 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<sub>2</sub> regularization can easily lead to misjudgment of undamaged elements, while L<sub>1</sub> regularization in CMCM can identify structural damage more accurately. Even if only the first measurement mode is used, the L<sub>1</sub> regularization technique can be used to solve the CMCM equation to accurately identify the damage of the frame structure. |
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| ISSN: | 1001-9669 |