Vibroacoustic Analysis of Cyclic Structures by Using Dof’s Size Reduction and Holographic Measurements
We propose a method for the vibroacoustic analysis of structures having symmetry properties. This method is based on the reduction of the number of the degrees of freedom involved (size reduction) and the use of experimental data (confrontation numerical/experimental). We propose the extension of th...
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| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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Wiley
2006-01-01
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| Series: | Shock and Vibration |
| Online Access: | http://dx.doi.org/10.1155/2006/828367 |
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| _version_ | 1832546096036970496 |
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| author | Abdelkhalak El Hami Dan Borza José Eduardo Souza de Cursi |
| author_facet | Abdelkhalak El Hami Dan Borza José Eduardo Souza de Cursi |
| author_sort | Abdelkhalak El Hami |
| collection | DOAJ |
| description | We propose a method for the vibroacoustic analysis of structures having symmetry properties. This method is based on the reduction of the number of the degrees of freedom involved (size reduction) and the use of experimental data (confrontation numerical/experimental). We propose the extension of the method of the linear representations of finite symmetry groups to problems of coupling fluid-structure. This approach, while keeping the quality of the approximations, leads to a significant reduction of the number of degrees of freedom, with a maximal reduction for the so called repetitive structures. Finally, we present a practical case of modal analysis – in air and water – of a ship propeller formed by 3 stainless steel blades. The experimental results are obtained by using the whole-field, non-contact technique of electronic holography. |
| format | Article |
| id | doaj-art-e69d57d44aaf4841a6ba3ccfab96e077 |
| institution | Kabale University |
| issn | 1070-9622 1875-9203 |
| language | English |
| publishDate | 2006-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Shock and Vibration |
| spelling | doaj-art-e69d57d44aaf4841a6ba3ccfab96e0772025-02-03T07:23:53ZengWileyShock and Vibration1070-96221875-92032006-01-01134-535536610.1155/2006/828367Vibroacoustic Analysis of Cyclic Structures by Using Dof’s Size Reduction and Holographic MeasurementsAbdelkhalak El Hami0Dan Borza1José Eduardo Souza de Cursi2INSA de Rouen, LMR, 76801 St Etienne du Rouvray, FranceINSA de Rouen, LMR, 76801 St Etienne du Rouvray, FranceINSA de Rouen, LMR, 76801 St Etienne du Rouvray, FranceWe propose a method for the vibroacoustic analysis of structures having symmetry properties. This method is based on the reduction of the number of the degrees of freedom involved (size reduction) and the use of experimental data (confrontation numerical/experimental). We propose the extension of the method of the linear representations of finite symmetry groups to problems of coupling fluid-structure. This approach, while keeping the quality of the approximations, leads to a significant reduction of the number of degrees of freedom, with a maximal reduction for the so called repetitive structures. Finally, we present a practical case of modal analysis – in air and water – of a ship propeller formed by 3 stainless steel blades. The experimental results are obtained by using the whole-field, non-contact technique of electronic holography.http://dx.doi.org/10.1155/2006/828367 |
| spellingShingle | Abdelkhalak El Hami Dan Borza José Eduardo Souza de Cursi Vibroacoustic Analysis of Cyclic Structures by Using Dof’s Size Reduction and Holographic Measurements Shock and Vibration |
| title | Vibroacoustic Analysis of Cyclic Structures by Using Dof’s Size Reduction and Holographic Measurements |
| title_full | Vibroacoustic Analysis of Cyclic Structures by Using Dof’s Size Reduction and Holographic Measurements |
| title_fullStr | Vibroacoustic Analysis of Cyclic Structures by Using Dof’s Size Reduction and Holographic Measurements |
| title_full_unstemmed | Vibroacoustic Analysis of Cyclic Structures by Using Dof’s Size Reduction and Holographic Measurements |
| title_short | Vibroacoustic Analysis of Cyclic Structures by Using Dof’s Size Reduction and Holographic Measurements |
| title_sort | vibroacoustic analysis of cyclic structures by using dof s size reduction and holographic measurements |
| url | http://dx.doi.org/10.1155/2006/828367 |
| work_keys_str_mv | AT abdelkhalakelhami vibroacousticanalysisofcyclicstructuresbyusingdofssizereductionandholographicmeasurements AT danborza vibroacousticanalysisofcyclicstructuresbyusingdofssizereductionandholographicmeasurements AT joseeduardosouzadecursi vibroacousticanalysisofcyclicstructuresbyusingdofssizereductionandholographicmeasurements |