Dynamic Model Updating Using Virtual Antiresonances
This paper considers an extension of the model updating method that minimizes the antiresonance error, besides the natural frequency error. By defining virtual antiresonances, this extension allows the use of previously identified modal data. Virtual antiresonances can be evaluated from a truncated...
Saved in:
| Main Authors: | , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Wiley
2004-01-01
|
| Series: | Shock and Vibration |
| Online Access: | http://dx.doi.org/10.1155/2004/570128 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1832566578117345280 |
|---|---|
| author | Walter D’Ambrogio Annalisa Fregolent |
| author_facet | Walter D’Ambrogio Annalisa Fregolent |
| author_sort | Walter D’Ambrogio |
| collection | DOAJ |
| description | This paper considers an extension of the model updating method that minimizes the antiresonance error, besides the natural frequency error. By defining virtual antiresonances, this extension allows the use of previously identified modal data. Virtual antiresonances can be evaluated from a truncated modal expansion, and do not correspond to any physical system. The method is applied to the Finite Element model updating of the GARTEUR benchmark, used within an European project on updating. Results are compared with those previously obtained by estimating actual antiresonances after computing low and high frequency residuals, and with results obtained by using the correlation (MAC) between identified and analytical mode shapes. |
| format | Article |
| id | doaj-art-e1e41b0a80974d10a078cc7da63d5417 |
| institution | Kabale University |
| issn | 1070-9622 1875-9203 |
| language | English |
| publishDate | 2004-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Shock and Vibration |
| spelling | doaj-art-e1e41b0a80974d10a078cc7da63d54172025-02-03T01:03:44ZengWileyShock and Vibration1070-96221875-92032004-01-01113-435136310.1155/2004/570128Dynamic Model Updating Using Virtual AntiresonancesWalter D’Ambrogio0Annalisa Fregolent1Dipartimento di Energetica, Università de L’Aquila, Località Monteluco, I-67040 Roio Poggio (AQ), ItalyDipartimento di Meccanica e Aeronautica, Università di Roma “La Sapienza”, Via Eudossiana 18, I-00184 Roma, ItalyThis paper considers an extension of the model updating method that minimizes the antiresonance error, besides the natural frequency error. By defining virtual antiresonances, this extension allows the use of previously identified modal data. Virtual antiresonances can be evaluated from a truncated modal expansion, and do not correspond to any physical system. The method is applied to the Finite Element model updating of the GARTEUR benchmark, used within an European project on updating. Results are compared with those previously obtained by estimating actual antiresonances after computing low and high frequency residuals, and with results obtained by using the correlation (MAC) between identified and analytical mode shapes.http://dx.doi.org/10.1155/2004/570128 |
| spellingShingle | Walter D’Ambrogio Annalisa Fregolent Dynamic Model Updating Using Virtual Antiresonances Shock and Vibration |
| title | Dynamic Model Updating Using Virtual Antiresonances |
| title_full | Dynamic Model Updating Using Virtual Antiresonances |
| title_fullStr | Dynamic Model Updating Using Virtual Antiresonances |
| title_full_unstemmed | Dynamic Model Updating Using Virtual Antiresonances |
| title_short | Dynamic Model Updating Using Virtual Antiresonances |
| title_sort | dynamic model updating using virtual antiresonances |
| url | http://dx.doi.org/10.1155/2004/570128 |
| work_keys_str_mv | AT walterdambrogio dynamicmodelupdatingusingvirtualantiresonances AT annalisafregolent dynamicmodelupdatingusingvirtualantiresonances |