Finite Element Model Updating Using FRF Measurements
This study presents a new updating method based on measured frequency response functions. The objective function of the minimization procedure is formed by the difference between the measured and the analytical frequency responses. The updating parameters are the correction coefficients related to e...
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| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
Wiley
2005-01-01
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| Series: | Shock and Vibration |
| Online Access: | http://dx.doi.org/10.1155/2005/581634 |
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| _version_ | 1832565203456229376 |
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| author | Farid Asma Amar Bouazzouni |
| author_facet | Farid Asma Amar Bouazzouni |
| author_sort | Farid Asma |
| collection | DOAJ |
| description | This study presents a new updating method based on measured frequency response functions. The objective function of the minimization procedure is formed by the difference between the measured and the analytical frequency responses. The updating parameters are the correction coefficients related to each the elementary mass and stiffness matrices. While making use of a number of incomplete measurements for some frequencies, one builds a non-linear system of equations. The linearisation of the numerical system leads to an iterative procedure. An intrinsic frequency parametrization is proposed in order to accelerate the convergence of the iterative system. The obtained results are comparable with those of the known least squares methods. |
| format | Article |
| id | doaj-art-d6336e8d227740b189f1ef9b14d68f07 |
| institution | Kabale University |
| issn | 1070-9622 1875-9203 |
| language | English |
| publishDate | 2005-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Shock and Vibration |
| spelling | doaj-art-d6336e8d227740b189f1ef9b14d68f072025-02-03T01:09:04ZengWileyShock and Vibration1070-96221875-92032005-01-0112537738810.1155/2005/581634Finite Element Model Updating Using FRF MeasurementsFarid Asma0Amar Bouazzouni1Laboratory of Mechanics, Structures and Energetic, University Mouloud Mammeri, LP 17 RP 15000 Tizi-ouzou, AlgeriaLaboratory of Mechanics, Structures and Energetic, University Mouloud Mammeri, LP 17 RP 15000 Tizi-ouzou, AlgeriaThis study presents a new updating method based on measured frequency response functions. The objective function of the minimization procedure is formed by the difference between the measured and the analytical frequency responses. The updating parameters are the correction coefficients related to each the elementary mass and stiffness matrices. While making use of a number of incomplete measurements for some frequencies, one builds a non-linear system of equations. The linearisation of the numerical system leads to an iterative procedure. An intrinsic frequency parametrization is proposed in order to accelerate the convergence of the iterative system. The obtained results are comparable with those of the known least squares methods.http://dx.doi.org/10.1155/2005/581634 |
| spellingShingle | Farid Asma Amar Bouazzouni Finite Element Model Updating Using FRF Measurements Shock and Vibration |
| title | Finite Element Model Updating Using FRF Measurements |
| title_full | Finite Element Model Updating Using FRF Measurements |
| title_fullStr | Finite Element Model Updating Using FRF Measurements |
| title_full_unstemmed | Finite Element Model Updating Using FRF Measurements |
| title_short | Finite Element Model Updating Using FRF Measurements |
| title_sort | finite element model updating using frf measurements |
| url | http://dx.doi.org/10.1155/2005/581634 |
| work_keys_str_mv | AT faridasma finiteelementmodelupdatingusingfrfmeasurements AT amarbouazzouni finiteelementmodelupdatingusingfrfmeasurements |