A New Criterion for the Stabilization Diagram Used with Stochastic Subspace Identification Methods: An Application to an Aircraft Skeleton
The modal parameters of a structure that is estimated from ambient vibration measurements are always subject to bias and variance errors. Accordingly the concept of the stabilization diagram is introduced to help users identify the correct model. One of the most important problems using this diagram...
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| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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Wiley
2014-01-01
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| Series: | Shock and Vibration |
| Online Access: | http://dx.doi.org/10.1155/2014/409298 |
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| _version_ | 1832548386880880640 |
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| author | E. Mrabet M. Abdelghani N. Ben Kahla |
| author_facet | E. Mrabet M. Abdelghani N. Ben Kahla |
| author_sort | E. Mrabet |
| collection | DOAJ |
| description | The modal parameters of a structure that is estimated from ambient vibration measurements are always subject to bias and variance errors. Accordingly the concept of the stabilization diagram is introduced to help users identify the correct model. One of the most important problems using this diagram is the appearance of spurious modes that should be discriminated to simplify modes selections. This study presents a new stabilization criterion obtained through a novel numerical implementation of the stabilization diagram and the discussion of model validation employing the power spectral density. As an application, an aircraft skeleton is used. |
| format | Article |
| id | doaj-art-29df68cfe8bf4cf2b1af89414920dacc |
| institution | Kabale University |
| issn | 1070-9622 1875-9203 |
| language | English |
| publishDate | 2014-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Shock and Vibration |
| spelling | doaj-art-29df68cfe8bf4cf2b1af89414920dacc2025-02-03T06:14:14ZengWileyShock and Vibration1070-96221875-92032014-01-01201410.1155/2014/409298409298A New Criterion for the Stabilization Diagram Used with Stochastic Subspace Identification Methods: An Application to an Aircraft SkeletonE. Mrabet0M. Abdelghani1N. Ben Kahla2High Institute of Technological Studies of Kairouan, Campus Universitaire Raccada, 3100 Kairouan, TunisiaHigh Institute of Applied Sciences and Technologies of Sousse, University of Sousse, Cité Taffala (Ibn Khaldoun), 4003 Sousse, TunisiaHigh Institute of Applied Sciences and Technologies of Sousse, University of Sousse, Cité Taffala (Ibn Khaldoun), 4003 Sousse, TunisiaThe modal parameters of a structure that is estimated from ambient vibration measurements are always subject to bias and variance errors. Accordingly the concept of the stabilization diagram is introduced to help users identify the correct model. One of the most important problems using this diagram is the appearance of spurious modes that should be discriminated to simplify modes selections. This study presents a new stabilization criterion obtained through a novel numerical implementation of the stabilization diagram and the discussion of model validation employing the power spectral density. As an application, an aircraft skeleton is used.http://dx.doi.org/10.1155/2014/409298 |
| spellingShingle | E. Mrabet M. Abdelghani N. Ben Kahla A New Criterion for the Stabilization Diagram Used with Stochastic Subspace Identification Methods: An Application to an Aircraft Skeleton Shock and Vibration |
| title | A New Criterion for the Stabilization Diagram Used with Stochastic Subspace Identification Methods: An Application to an Aircraft Skeleton |
| title_full | A New Criterion for the Stabilization Diagram Used with Stochastic Subspace Identification Methods: An Application to an Aircraft Skeleton |
| title_fullStr | A New Criterion for the Stabilization Diagram Used with Stochastic Subspace Identification Methods: An Application to an Aircraft Skeleton |
| title_full_unstemmed | A New Criterion for the Stabilization Diagram Used with Stochastic Subspace Identification Methods: An Application to an Aircraft Skeleton |
| title_short | A New Criterion for the Stabilization Diagram Used with Stochastic Subspace Identification Methods: An Application to an Aircraft Skeleton |
| title_sort | new criterion for the stabilization diagram used with stochastic subspace identification methods an application to an aircraft skeleton |
| url | http://dx.doi.org/10.1155/2014/409298 |
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