Force Magnitude Reconstruction Using the Force Transmissibility Concept
This paper proposes the reconstruction of forces, based on the direct and inverse problems of transmissibility in multiple degree of freedom (MDOF) systems. The objective and novelty are to use the force transmissibility to calculate reactions given the applied loads (and vice versa). This method, r...
Saved in:
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Wiley
2014-01-01
|
| Series: | Shock and Vibration |
| Online Access: | http://dx.doi.org/10.1155/2014/905912 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1832564403957923840 |
|---|---|
| author | Y. E. Lage N. M. M. Maia M. M. Neves |
| author_facet | Y. E. Lage N. M. M. Maia M. M. Neves |
| author_sort | Y. E. Lage |
| collection | DOAJ |
| description | This paper proposes the reconstruction of forces, based on the direct and inverse problems of transmissibility in multiple degree of freedom (MDOF) systems. The objective and novelty are to use the force transmissibility to calculate reactions given the applied loads (and vice versa). This method, relating two sets of forces, proves to be an alternative to the common inverse problem based on the measurement of FRFs and operational accelerations to determine operational forces, as it can be advantageous in some cases. This implies the a priori knowledge of the transmissibility of the structure, either experimentally or numerically. In this study a finite element model is built, describing with enough accuracy the dynamic behavior of the structure. The numerical model will play a key role in the construction of the transmissibility matrix; this will be used to evaluate either the reaction or the applied forces, using experimental data. This constitutes a hybrid methodology, which is validated experimentally. The authors present several comparisons between reconstructed and experimentally measured sets of forces. It is shown that the proposed method is able to produce good results in the reconstruction of the forces, underlining its potential for other structures and possible applications. |
| format | Article |
| id | doaj-art-5d29339bd8e744dbb385a82c3c99d9f3 |
| 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-5d29339bd8e744dbb385a82c3c99d9f32025-02-03T01:11:07ZengWileyShock and Vibration1070-96221875-92032014-01-01201410.1155/2014/905912905912Force Magnitude Reconstruction Using the Force Transmissibility ConceptY. E. Lage0N. M. M. Maia1M. M. Neves2LAETA, IDMEC, Instituto Superior Técnico, Universidade de Lisboa, Avenida Rovisco Pais, 1049-001 Lisboa, PortugalLAETA, IDMEC, Instituto Superior Técnico, Universidade de Lisboa, Avenida Rovisco Pais, 1049-001 Lisboa, PortugalLAETA, IDMEC, Instituto Superior Técnico, Universidade de Lisboa, Avenida Rovisco Pais, 1049-001 Lisboa, PortugalThis paper proposes the reconstruction of forces, based on the direct and inverse problems of transmissibility in multiple degree of freedom (MDOF) systems. The objective and novelty are to use the force transmissibility to calculate reactions given the applied loads (and vice versa). This method, relating two sets of forces, proves to be an alternative to the common inverse problem based on the measurement of FRFs and operational accelerations to determine operational forces, as it can be advantageous in some cases. This implies the a priori knowledge of the transmissibility of the structure, either experimentally or numerically. In this study a finite element model is built, describing with enough accuracy the dynamic behavior of the structure. The numerical model will play a key role in the construction of the transmissibility matrix; this will be used to evaluate either the reaction or the applied forces, using experimental data. This constitutes a hybrid methodology, which is validated experimentally. The authors present several comparisons between reconstructed and experimentally measured sets of forces. It is shown that the proposed method is able to produce good results in the reconstruction of the forces, underlining its potential for other structures and possible applications.http://dx.doi.org/10.1155/2014/905912 |
| spellingShingle | Y. E. Lage N. M. M. Maia M. M. Neves Force Magnitude Reconstruction Using the Force Transmissibility Concept Shock and Vibration |
| title | Force Magnitude Reconstruction Using the Force Transmissibility Concept |
| title_full | Force Magnitude Reconstruction Using the Force Transmissibility Concept |
| title_fullStr | Force Magnitude Reconstruction Using the Force Transmissibility Concept |
| title_full_unstemmed | Force Magnitude Reconstruction Using the Force Transmissibility Concept |
| title_short | Force Magnitude Reconstruction Using the Force Transmissibility Concept |
| title_sort | force magnitude reconstruction using the force transmissibility concept |
| url | http://dx.doi.org/10.1155/2014/905912 |
| work_keys_str_mv | AT yelage forcemagnitudereconstructionusingtheforcetransmissibilityconcept AT nmmmaia forcemagnitudereconstructionusingtheforcetransmissibilityconcept AT mmneves forcemagnitudereconstructionusingtheforcetransmissibilityconcept |