Sensitivity-based model updating for structural damage identification using total variation regularization
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- 作者：Niklas Gripa ; 1 ; Niklas.Grip@ltu.se" class="auth_mail" title="E-mail the corresponding author ; Natalia Sabourovaa ; 1 ; 2 ; Natalia.Sabourova@ltu.se" class="auth_mail" title="E-mail the corresponding author ; Yongming Tub ; 3 ; tuyongming@seu.edu.cn" class="auth_mail" title="E-mail the corresponding author ; yongming.tu@ltu.se" class="auth_mail" title="E-mail the corresponding author
- 关键词：Finite element model updating ; Structural damage identification ; Total variation regularization ; (pseudo) Huber function ; Interpolation ; Reinforced concrete plate
- 刊名：Mechanical Systems and Signal Processing
- 出版年：2017
- 出版时间：1 February 2017
- 年：2017
- 卷：84
- 期：part_PA
- 页码：365-383
- 全文大小：3026 K
文摘
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Damage identification with a total variation regularization is proposed.
(Pseudo) Huber total variation and Tikhonov type regularizations are considered.
These methods are tested on a reinforced concrete plate with and without damage.
(Pseudo) Huber regularization is free from over-smoothing inherent in interpolation method.
More precise damage identification with (pseudo) Huber than with interpolating functions is found.