Modal Shape Analysis Using Thermal Imaging
In recent years, advances in aeronautical engineering field include, among others, the development of increasingly lightweight and flexible materials, allowing better performance of systems in applications such as Unmanned Aerial Vehicles, photographic model airplanes, light weight aircraft etc. Thi...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
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Instituto de Aeronáutica e Espaço (IAE)
2015-05-01
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| Series: | Journal of Aerospace Technology and Management |
| Subjects: | |
| Online Access: | https://www.jatm.com.br/jatm/article/view/450 |
| _version_ | 1818193760787365888 |
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| author | Jorge Henrique Bidinotto Eduardo Morgado Belo |
| author_facet | Jorge Henrique Bidinotto Eduardo Morgado Belo |
| author_sort | Jorge Henrique Bidinotto |
| collection | DOAJ |
| description | In recent years, advances in aeronautical engineering field include, among others, the development of increasingly lightweight and flexible materials, allowing better performance of systems in applications such as Unmanned Aerial Vehicles, photographic model airplanes, light weight aircraft etc. This progress, however, can cause difficulties in design and various types of tests, such as those performed in modal analysis, since the instrumentation weight and shape can influence the behavior of very light and aerodynamic structures. This paper proposes a new technique to perform modal analysis in simple structures, eliminating the use of accelerometers, which must be numerous in this type of analysis and have significant weight; the whole structure can be analyzed at the same time, and this is an advantage in comparison with other techniques as vibrometer laser, that analyses one point at a time. The technique in question makes use of infrared imaging, detecting, through the heat, the structure deformation, allowing the trace of its modal shape.For this, a theoretical analysis and a thermomechanical modeling of a known structure are performed, with subsequent test to be validated, and finally the conclusions and suggestions for future work are presented. |
| first_indexed | 2024-12-12T00:51:31Z |
| format | Article |
| id | doaj.art-922acac777ee4041a4581dfb0801dd59 |
| institution | Directory Open Access Journal |
| issn | 2175-9146 |
| language | English |
| last_indexed | 2024-12-12T00:51:31Z |
| publishDate | 2015-05-01 |
| publisher | Instituto de Aeronáutica e Espaço (IAE) |
| record_format | Article |
| series | Journal of Aerospace Technology and Management |
| spelling | doaj.art-922acac777ee4041a4581dfb0801dd592022-12-22T00:44:00ZengInstituto de Aeronáutica e Espaço (IAE)Journal of Aerospace Technology and Management2175-91462015-05-0172Modal Shape Analysis Using Thermal ImagingJorge Henrique Bidinotto0Eduardo Morgado Belo1Federal University of São CarlosUniversity of São PauloIn recent years, advances in aeronautical engineering field include, among others, the development of increasingly lightweight and flexible materials, allowing better performance of systems in applications such as Unmanned Aerial Vehicles, photographic model airplanes, light weight aircraft etc. This progress, however, can cause difficulties in design and various types of tests, such as those performed in modal analysis, since the instrumentation weight and shape can influence the behavior of very light and aerodynamic structures. This paper proposes a new technique to perform modal analysis in simple structures, eliminating the use of accelerometers, which must be numerous in this type of analysis and have significant weight; the whole structure can be analyzed at the same time, and this is an advantage in comparison with other techniques as vibrometer laser, that analyses one point at a time. The technique in question makes use of infrared imaging, detecting, through the heat, the structure deformation, allowing the trace of its modal shape.For this, a theoretical analysis and a thermomechanical modeling of a known structure are performed, with subsequent test to be validated, and finally the conclusions and suggestions for future work are presented.https://www.jatm.com.br/jatm/article/view/450Modal responseInfrared imagingThermomechanics |
| spellingShingle | Jorge Henrique Bidinotto Eduardo Morgado Belo Modal Shape Analysis Using Thermal Imaging Journal of Aerospace Technology and Management Modal response Infrared imaging Thermomechanics |
| title | Modal Shape Analysis Using Thermal Imaging |
| title_full | Modal Shape Analysis Using Thermal Imaging |
| title_fullStr | Modal Shape Analysis Using Thermal Imaging |
| title_full_unstemmed | Modal Shape Analysis Using Thermal Imaging |
| title_short | Modal Shape Analysis Using Thermal Imaging |
| title_sort | modal shape analysis using thermal imaging |
| topic | Modal response Infrared imaging Thermomechanics |
| url | https://www.jatm.com.br/jatm/article/view/450 |
| work_keys_str_mv | AT jorgehenriquebidinotto modalshapeanalysisusingthermalimaging AT eduardomorgadobelo modalshapeanalysisusingthermalimaging |