Experimental damage assessment of support condition for plate structures using wavelet transform
Wavelet transforms (WTs) have gained popularity due to their ability to identify singularities by decomposing mode shapes of structures. In VBDD, the support condition of a structure influences structural responses and modal properties. In fact, the structural responses and modal properties are a lo...
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| Format: | Article |
| Language: | English |
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Polish Society of Theoretical and Allied Mechanics
2019
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| Online Access: | http://eprints.utm.my/89147/1/MuyideenAbdulkareem2019_ExperimentalDamageAssessmentofSupportCondition.pdf |
| _version_ | 1796864771335651328 |
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| author | Abdulkareem, Muyideen Bakhary, Norhisham Vafaei, Mohammadreza Md. Noor, Norhazilan Abd. Samat, Roslida |
| author_facet | Abdulkareem, Muyideen Bakhary, Norhisham Vafaei, Mohammadreza Md. Noor, Norhazilan Abd. Samat, Roslida |
| author_sort | Abdulkareem, Muyideen |
| collection | ePrints |
| description | Wavelet transforms (WTs) have gained popularity due to their ability to identify singularities by decomposing mode shapes of structures. In VBDD, the support condition of a structure influences structural responses and modal properties. In fact, the structural responses and modal properties are a lot more sensitive to changing boundary conditions than to crack and fatigue damage, resulting in inaccurate damage detection results. Therefore, in this study, sensitivity tests to estimate a suitable distance range which allows damage detection by imposing single support damage are carried out. The estimated appropriate distance is then applied to detect damage at multiple supports. This involved the applicability of response acceleration of plate structures to support assessment by applying continuous wavelet transform (CWT) and discrete wavelet transform (DWT). The damage cases have been introduced by releasing bolts at specified fixed supports of the plate to simulate the damage. The response accelerations of the rectangular plate at points close to the supports were measured and decomposed using CWT and DWT to assess the structural integrity of each support. The results showed that an appropriate distance range was necessary for accurate damage detection, and both, CWT and DWT could provide reliable outputs. However, the first- and fourth-level detail coefficients of DWT failed to indicate damage in some cases. A more detailed investigation of the effect of different wavelet scale ranges on damage detection using CWT demonstrated that the accuracy of damage detection increased as the scale decreased. |
| first_indexed | 2024-03-05T20:46:50Z |
| format | Article |
| id | utm.eprints-89147 |
| institution | Universiti Teknologi Malaysia - ePrints |
| language | English |
| last_indexed | 2024-03-05T20:46:50Z |
| publishDate | 2019 |
| publisher | Polish Society of Theoretical and Allied Mechanics |
| record_format | dspace |
| spelling | utm.eprints-891472021-01-26T08:48:04Z http://eprints.utm.my/89147/ Experimental damage assessment of support condition for plate structures using wavelet transform Abdulkareem, Muyideen Bakhary, Norhisham Vafaei, Mohammadreza Md. Noor, Norhazilan Abd. Samat, Roslida TA Engineering (General). Civil engineering (General) Wavelet transforms (WTs) have gained popularity due to their ability to identify singularities by decomposing mode shapes of structures. In VBDD, the support condition of a structure influences structural responses and modal properties. In fact, the structural responses and modal properties are a lot more sensitive to changing boundary conditions than to crack and fatigue damage, resulting in inaccurate damage detection results. Therefore, in this study, sensitivity tests to estimate a suitable distance range which allows damage detection by imposing single support damage are carried out. The estimated appropriate distance is then applied to detect damage at multiple supports. This involved the applicability of response acceleration of plate structures to support assessment by applying continuous wavelet transform (CWT) and discrete wavelet transform (DWT). The damage cases have been introduced by releasing bolts at specified fixed supports of the plate to simulate the damage. The response accelerations of the rectangular plate at points close to the supports were measured and decomposed using CWT and DWT to assess the structural integrity of each support. The results showed that an appropriate distance range was necessary for accurate damage detection, and both, CWT and DWT could provide reliable outputs. However, the first- and fourth-level detail coefficients of DWT failed to indicate damage in some cases. A more detailed investigation of the effect of different wavelet scale ranges on damage detection using CWT demonstrated that the accuracy of damage detection increased as the scale decreased. Polish Society of Theoretical and Allied Mechanics 2019-04 Article PeerReviewed application/pdf en http://eprints.utm.my/89147/1/MuyideenAbdulkareem2019_ExperimentalDamageAssessmentofSupportCondition.pdf Abdulkareem, Muyideen and Bakhary, Norhisham and Vafaei, Mohammadreza and Md. Noor, Norhazilan and Abd. Samat, Roslida (2019) Experimental damage assessment of support condition for plate structures using wavelet transform. Journal of Theoretical and Applied Mechanics (Poland), 57 (2). pp. 501-518. ISSN 1429-2955 http://dx.doi.org/10.15632/jtam-pl/105470 DOI:10.15632/jtam-pl/105470 |
| spellingShingle | TA Engineering (General). Civil engineering (General) Abdulkareem, Muyideen Bakhary, Norhisham Vafaei, Mohammadreza Md. Noor, Norhazilan Abd. Samat, Roslida Experimental damage assessment of support condition for plate structures using wavelet transform |
| title | Experimental damage assessment of support condition for plate structures using wavelet transform |
| title_full | Experimental damage assessment of support condition for plate structures using wavelet transform |
| title_fullStr | Experimental damage assessment of support condition for plate structures using wavelet transform |
| title_full_unstemmed | Experimental damage assessment of support condition for plate structures using wavelet transform |
| title_short | Experimental damage assessment of support condition for plate structures using wavelet transform |
| title_sort | experimental damage assessment of support condition for plate structures using wavelet transform |
| topic | TA Engineering (General). Civil engineering (General) |
| url | http://eprints.utm.my/89147/1/MuyideenAbdulkareem2019_ExperimentalDamageAssessmentofSupportCondition.pdf |
| work_keys_str_mv | AT abdulkareemmuyideen experimentaldamageassessmentofsupportconditionforplatestructuresusingwavelettransform AT bakharynorhisham experimentaldamageassessmentofsupportconditionforplatestructuresusingwavelettransform AT vafaeimohammadreza experimentaldamageassessmentofsupportconditionforplatestructuresusingwavelettransform AT mdnoornorhazilan experimentaldamageassessmentofsupportconditionforplatestructuresusingwavelettransform AT abdsamatroslida experimentaldamageassessmentofsupportconditionforplatestructuresusingwavelettransform |