Nonlinear Guided-Wave Mixing for Condition Monitoring of Bolted Joints
Bolted joints are fundamental to numerous structural components in engineering practice. Nevertheless, their failure or even their loosening can lead to insufficient performance and reduced structural safety. This study presents a theoretical development and experimental investigation into nonlinear...
| Main Authors: | , |
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| Formato: | Artigo |
| Idioma: | English |
| Publicado em: |
MDPI AG
2021-07-01
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| Colecção: | Sensors |
| Assuntos: | |
| Acesso em linha: | https://www.mdpi.com/1424-8220/21/15/5093 |
| _version_ | 1827686375665696768 |
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| author | Juan Carlos Pineda Allen Ching Tai Ng |
| author_facet | Juan Carlos Pineda Allen Ching Tai Ng |
| author_sort | Juan Carlos Pineda Allen |
| collection | DOAJ |
| description | Bolted joints are fundamental to numerous structural components in engineering practice. Nevertheless, their failure or even their loosening can lead to insufficient performance and reduced structural safety. This study presents a theoretical development and experimental investigation into nonlinear guided-wave mixing for integrity monitoring of bolted joints in plates. Combinational harmonics generated due to nonlinear Lamb wave mixing and contact acoustic nonlinearity at the bolted joints were used to evaluate the applied torque level in the joint. The area of the power spectral density in the region of the sum combinational harmonic bandwidth is found to be highly correlated to the applied torque level at the joint. Moreover, the effect of the number of cycles and thus the time duration of the excitation is investigated. The results show that the combinational harmonics remain robust for different numbers of cycles in detecting bolt loosening. The findings presented in this study also provide physical insight into the phenomena of nonlinear Lamb wave mixing for evaluating applied torque in bolted joints, and the results help further advance the use of nonlinear guided waves for damage detection. |
| first_indexed | 2024-03-10T09:09:19Z |
| format | Article |
| id | doaj.art-93e4cc3346264d9b9e21625c369bd5b9 |
| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-03-10T09:09:19Z |
| publishDate | 2021-07-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj.art-93e4cc3346264d9b9e21625c369bd5b92023-11-22T06:10:22ZengMDPI AGSensors1424-82202021-07-012115509310.3390/s21155093Nonlinear Guided-Wave Mixing for Condition Monitoring of Bolted JointsJuan Carlos Pineda Allen0Ching Tai Ng1School of Civil, Environmental & Mining Engineering, The University of Adelaide, Adelaide, SA 5005, AustraliaSchool of Civil, Environmental & Mining Engineering, The University of Adelaide, Adelaide, SA 5005, AustraliaBolted joints are fundamental to numerous structural components in engineering practice. Nevertheless, their failure or even their loosening can lead to insufficient performance and reduced structural safety. This study presents a theoretical development and experimental investigation into nonlinear guided-wave mixing for integrity monitoring of bolted joints in plates. Combinational harmonics generated due to nonlinear Lamb wave mixing and contact acoustic nonlinearity at the bolted joints were used to evaluate the applied torque level in the joint. The area of the power spectral density in the region of the sum combinational harmonic bandwidth is found to be highly correlated to the applied torque level at the joint. Moreover, the effect of the number of cycles and thus the time duration of the excitation is investigated. The results show that the combinational harmonics remain robust for different numbers of cycles in detecting bolt loosening. The findings presented in this study also provide physical insight into the phenomena of nonlinear Lamb wave mixing for evaluating applied torque in bolted joints, and the results help further advance the use of nonlinear guided waves for damage detection.https://www.mdpi.com/1424-8220/21/15/5093wave mixingbolt looseningbolted jointLamb wavecombination harmonicguided wave |
| spellingShingle | Juan Carlos Pineda Allen Ching Tai Ng Nonlinear Guided-Wave Mixing for Condition Monitoring of Bolted Joints Sensors wave mixing bolt loosening bolted joint Lamb wave combination harmonic guided wave |
| title | Nonlinear Guided-Wave Mixing for Condition Monitoring of Bolted Joints |
| title_full | Nonlinear Guided-Wave Mixing for Condition Monitoring of Bolted Joints |
| title_fullStr | Nonlinear Guided-Wave Mixing for Condition Monitoring of Bolted Joints |
| title_full_unstemmed | Nonlinear Guided-Wave Mixing for Condition Monitoring of Bolted Joints |
| title_short | Nonlinear Guided-Wave Mixing for Condition Monitoring of Bolted Joints |
| title_sort | nonlinear guided wave mixing for condition monitoring of bolted joints |
| topic | wave mixing bolt loosening bolted joint Lamb wave combination harmonic guided wave |
| url | https://www.mdpi.com/1424-8220/21/15/5093 |
| work_keys_str_mv | AT juancarlospinedaallen nonlinearguidedwavemixingforconditionmonitoringofboltedjoints AT chingtaing nonlinearguidedwavemixingforconditionmonitoringofboltedjoints |