Comparison of Force Reconstruction Methods for a Lumped Mass Beam
Two extensions of the force reconstruction method, the sum of weighted accelerations technique (SWAT), are presented in this article. SWAT requires the use of the structure’s elastic mode shapes for reconstruction of the applied force. Although based on the same theory, the two new techniques do not...
Saved in:
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Wiley
1997-01-01
|
| Series: | Shock and Vibration |
| Online Access: | http://dx.doi.org/10.3233/SAV-1997-4403 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1849413260693995520 |
|---|---|
| author | Vesta I. Bateman Randall L. Mayes Thomas G. Carne |
| author_facet | Vesta I. Bateman Randall L. Mayes Thomas G. Carne |
| author_sort | Vesta I. Bateman |
| collection | DOAJ |
| description | Two extensions of the force reconstruction method, the sum of weighted accelerations technique (SWAT), are presented in this article. SWAT requires the use of the structure’s elastic mode shapes for reconstruction of the applied force. Although based on the same theory, the two new techniques do not rely on mode shapes to reconstruct the applied force and may be applied to structures whose mode shapes are not available. One technique uses the measured force and acceleration responses with the rigid body mode shapes to calculate the scalar weighting vector, so the technique is called SWAT-CAL (SWAT using a calibrated force input). The second technique uses the free-decay time response of the structure with the rigid body mode shapes to calculate the scalar weighting vector and is called SWAT-TEEM (SWAT using time eliminated elastic modes). All three methods are used to reconstruct forces for a simple structure. |
| format | Article |
| id | doaj-art-6c6667fc631843a09ee2df2adf8d7502 |
| institution | Kabale University |
| issn | 1070-9622 1875-9203 |
| language | English |
| publishDate | 1997-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Shock and Vibration |
| spelling | doaj-art-6c6667fc631843a09ee2df2adf8d75022025-08-20T03:34:10ZengWileyShock and Vibration1070-96221875-92031997-01-014423123910.3233/SAV-1997-4403Comparison of Force Reconstruction Methods for a Lumped Mass BeamVesta I. Bateman0Randall L. Mayes1Thomas G. Carne2Sandia National Laboratories, Albuquerque, NM 87185-0555, USASandia National Laboratories, Albuquerque, NM 87185-0555, USASandia National Laboratories, Albuquerque, NM 87185-0555, USATwo extensions of the force reconstruction method, the sum of weighted accelerations technique (SWAT), are presented in this article. SWAT requires the use of the structure’s elastic mode shapes for reconstruction of the applied force. Although based on the same theory, the two new techniques do not rely on mode shapes to reconstruct the applied force and may be applied to structures whose mode shapes are not available. One technique uses the measured force and acceleration responses with the rigid body mode shapes to calculate the scalar weighting vector, so the technique is called SWAT-CAL (SWAT using a calibrated force input). The second technique uses the free-decay time response of the structure with the rigid body mode shapes to calculate the scalar weighting vector and is called SWAT-TEEM (SWAT using time eliminated elastic modes). All three methods are used to reconstruct forces for a simple structure.http://dx.doi.org/10.3233/SAV-1997-4403 |
| spellingShingle | Vesta I. Bateman Randall L. Mayes Thomas G. Carne Comparison of Force Reconstruction Methods for a Lumped Mass Beam Shock and Vibration |
| title | Comparison of Force Reconstruction Methods for a Lumped Mass Beam |
| title_full | Comparison of Force Reconstruction Methods for a Lumped Mass Beam |
| title_fullStr | Comparison of Force Reconstruction Methods for a Lumped Mass Beam |
| title_full_unstemmed | Comparison of Force Reconstruction Methods for a Lumped Mass Beam |
| title_short | Comparison of Force Reconstruction Methods for a Lumped Mass Beam |
| title_sort | comparison of force reconstruction methods for a lumped mass beam |
| url | http://dx.doi.org/10.3233/SAV-1997-4403 |
| work_keys_str_mv | AT vestaibateman comparisonofforcereconstructionmethodsforalumpedmassbeam AT randalllmayes comparisonofforcereconstructionmethodsforalumpedmassbeam AT thomasgcarne comparisonofforcereconstructionmethodsforalumpedmassbeam |