Constrained Unscented Kalman Filter for Structural Identification of Bouc–Wen Hysteretic System
The Bouc–Wen hysteresis model has been extensively used to identify earthquake damage on civil structures where hysteretic behavior is expected. One of the challenging problems in the identification of Bouc–Wen parameters is overfitting, which is caused by too many nonphysical model parameters. Limi...
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| Format: | Article |
| Language: | English |
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Wiley
2020-01-01
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| Series: | Advances in Civil Engineering |
| Online Access: | http://dx.doi.org/10.1155/2020/8822239 |
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| author | Sung-Yong Kim Jaemin Kim |
| author_facet | Sung-Yong Kim Jaemin Kim |
| author_sort | Sung-Yong Kim |
| collection | DOAJ |
| description | The Bouc–Wen hysteresis model has been extensively used to identify earthquake damage on civil structures where hysteretic behavior is expected. One of the challenging problems in the identification of Bouc–Wen parameters is overfitting, which is caused by too many nonphysical model parameters. Limit on the search domain of parameters helps to solve the problem. The unscented Kalman filter (UKF) is widely developed to find Bouc–Wen parameters. In order to improve the accuracy and convergence speed of conventional UKF, this study developed a constrained UKF (CUKF) which can be used for the simultaneous identification of the Bouc–Wen hysteretic model. The proposed CUKF is very helpful when certain parameters can be constrained in a physical sense. We compare the proposed CUKF with conventional UKF to validate its robustness and efficacy in identifying Bouc–Wen parameters. |
| format | Article |
| id | doaj-art-0d2fe51741c742e8b4ef46293c191324 |
| institution | Kabale University |
| issn | 1687-8086 1687-8094 |
| language | English |
| publishDate | 2020-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Civil Engineering |
| spelling | doaj-art-0d2fe51741c742e8b4ef46293c1913242025-02-03T01:24:57ZengWileyAdvances in Civil Engineering1687-80861687-80942020-01-01202010.1155/2020/88222398822239Constrained Unscented Kalman Filter for Structural Identification of Bouc–Wen Hysteretic SystemSung-Yong Kim0Jaemin Kim1School of Architecture, Changwon National University, Changwon, Republic of KoreaDepartment of Electronics Engineering, Myongji University, Yongin, Republic of KoreaThe Bouc–Wen hysteresis model has been extensively used to identify earthquake damage on civil structures where hysteretic behavior is expected. One of the challenging problems in the identification of Bouc–Wen parameters is overfitting, which is caused by too many nonphysical model parameters. Limit on the search domain of parameters helps to solve the problem. The unscented Kalman filter (UKF) is widely developed to find Bouc–Wen parameters. In order to improve the accuracy and convergence speed of conventional UKF, this study developed a constrained UKF (CUKF) which can be used for the simultaneous identification of the Bouc–Wen hysteretic model. The proposed CUKF is very helpful when certain parameters can be constrained in a physical sense. We compare the proposed CUKF with conventional UKF to validate its robustness and efficacy in identifying Bouc–Wen parameters.http://dx.doi.org/10.1155/2020/8822239 |
| spellingShingle | Sung-Yong Kim Jaemin Kim Constrained Unscented Kalman Filter for Structural Identification of Bouc–Wen Hysteretic System Advances in Civil Engineering |
| title | Constrained Unscented Kalman Filter for Structural Identification of Bouc–Wen Hysteretic System |
| title_full | Constrained Unscented Kalman Filter for Structural Identification of Bouc–Wen Hysteretic System |
| title_fullStr | Constrained Unscented Kalman Filter for Structural Identification of Bouc–Wen Hysteretic System |
| title_full_unstemmed | Constrained Unscented Kalman Filter for Structural Identification of Bouc–Wen Hysteretic System |
| title_short | Constrained Unscented Kalman Filter for Structural Identification of Bouc–Wen Hysteretic System |
| title_sort | constrained unscented kalman filter for structural identification of bouc wen hysteretic system |
| url | http://dx.doi.org/10.1155/2020/8822239 |
| work_keys_str_mv | AT sungyongkim constrainedunscentedkalmanfilterforstructuralidentificationofboucwenhystereticsystem AT jaeminkim constrainedunscentedkalmanfilterforstructuralidentificationofboucwenhystereticsystem |