Improved Time Domain Substructural Damage Identification Method on Large-Span Spatial Structure
The large-span spatial structure is a complex structural type with large number of elements, which makes health monitoring difficult. A time domain global substructural identification method was proposed in this paper to identify the local damage for the large-span spatial structure. The proposed me...
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| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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Wiley
2021-01-01
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| Series: | Shock and Vibration |
| Online Access: | http://dx.doi.org/10.1155/2021/1069470 |
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| _version_ | 1832549208775720960 |
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| author | Taoyuan Yang Kun Liu Guibo Nie |
| author_facet | Taoyuan Yang Kun Liu Guibo Nie |
| author_sort | Taoyuan Yang |
| collection | DOAJ |
| description | The large-span spatial structure is a complex structural type with large number of elements, which makes health monitoring difficult. A time domain global substructural identification method was proposed in this paper to identify the local damage for the large-span spatial structure. The proposed method was an improvement method based on the time domain substructural identification method, which can identify the damage with a reduced structural model, and explicit force identification method, which can give convergent force identification result with incomplete response measurements, and it can assess one or more target substructures without knowing the conditions of the other parts of the structure. The application of the new method to large-span spatial structure was presented, and then an improved global method was proposed to further reduce the computation time and promote it in practice. Two orthogonal spatial square pyramid grid structure models are constructed to validate the time domain global substructural method and the improved global method. The results show that the time domain global substructural damage identification method identifies the small local damage in multiple members with satisfactory accuracy and the improved global method effectively shortens identification time. |
| format | Article |
| id | doaj-art-f54de5b095a14b48baeac1a113ed64c2 |
| institution | Kabale University |
| issn | 1070-9622 1875-9203 |
| language | English |
| publishDate | 2021-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Shock and Vibration |
| spelling | doaj-art-f54de5b095a14b48baeac1a113ed64c22025-02-03T06:12:06ZengWileyShock and Vibration1070-96221875-92032021-01-01202110.1155/2021/10694701069470Improved Time Domain Substructural Damage Identification Method on Large-Span Spatial StructureTaoyuan Yang0Kun Liu1Guibo Nie2Key Laboratory of Earthquake Engineering and Engineering Vibration, Institute of Engineering Mechanics, China Earthquake Administration, Harbin 150000, ChinaKey Lab of Structures Dynamics Behavior and Control of the Ministry of Education, Harbin Institute of Technology, Harbin 150090, ChinaKey Laboratory of Earthquake Engineering and Engineering Vibration, Institute of Engineering Mechanics, China Earthquake Administration, Harbin 150000, ChinaThe large-span spatial structure is a complex structural type with large number of elements, which makes health monitoring difficult. A time domain global substructural identification method was proposed in this paper to identify the local damage for the large-span spatial structure. The proposed method was an improvement method based on the time domain substructural identification method, which can identify the damage with a reduced structural model, and explicit force identification method, which can give convergent force identification result with incomplete response measurements, and it can assess one or more target substructures without knowing the conditions of the other parts of the structure. The application of the new method to large-span spatial structure was presented, and then an improved global method was proposed to further reduce the computation time and promote it in practice. Two orthogonal spatial square pyramid grid structure models are constructed to validate the time domain global substructural method and the improved global method. The results show that the time domain global substructural damage identification method identifies the small local damage in multiple members with satisfactory accuracy and the improved global method effectively shortens identification time.http://dx.doi.org/10.1155/2021/1069470 |
| spellingShingle | Taoyuan Yang Kun Liu Guibo Nie Improved Time Domain Substructural Damage Identification Method on Large-Span Spatial Structure Shock and Vibration |
| title | Improved Time Domain Substructural Damage Identification Method on Large-Span Spatial Structure |
| title_full | Improved Time Domain Substructural Damage Identification Method on Large-Span Spatial Structure |
| title_fullStr | Improved Time Domain Substructural Damage Identification Method on Large-Span Spatial Structure |
| title_full_unstemmed | Improved Time Domain Substructural Damage Identification Method on Large-Span Spatial Structure |
| title_short | Improved Time Domain Substructural Damage Identification Method on Large-Span Spatial Structure |
| title_sort | improved time domain substructural damage identification method on large span spatial structure |
| url | http://dx.doi.org/10.1155/2021/1069470 |
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