Modeling and Stochastic Model Updating of Bolt-Jointed Structure
Bolt-jointed structure is widely used in engineering fields. The dynamic characteristics of bolt-jointed structure are complex, and there is a variety of uncertainties in the jointed structure. In this study, modeling and updating of a typical bolt-jointed structure are investigated. In modeling ter...
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| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2018-01-01
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| Series: | Shock and Vibration |
| Online Access: | http://dx.doi.org/10.1155/2018/8354249 |
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| _version_ | 1832548457346236416 |
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| author | Ming Zhan Qintao Guo Lin Yue Baoqiang Zhang |
| author_facet | Ming Zhan Qintao Guo Lin Yue Baoqiang Zhang |
| author_sort | Ming Zhan |
| collection | DOAJ |
| description | Bolt-jointed structure is widely used in engineering fields. The dynamic characteristics of bolt-jointed structure are complex, and there is a variety of uncertainties in the jointed structure. In this study, modeling and updating of a typical bolt-jointed structure are investigated. In modeling terms, three-dimensional brick elements are used to represent the substructures, and thin-layer elements with virtual material properties are employed to represent the joint interface. Modal tests and experimental modal analysis of substructures and built-up structure are performed. A hierarchical model updating strategy based on Bayesian inference is applied to identify the unknown parameters in the substructures model and those in the overall model. Radial basis function (RBF) models are used as surrogates of time-consuming finite element model with high resolution to avoid the enormous computational cost. The results indicate that the updated model can reproduce modal frequencies used in updating and can predict those not used in the updating procedure. |
| format | Article |
| id | doaj-art-4de1ec9d1f804ac690a30c37f5ae6f59 |
| institution | Kabale University |
| issn | 1070-9622 1875-9203 |
| language | English |
| publishDate | 2018-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Shock and Vibration |
| spelling | doaj-art-4de1ec9d1f804ac690a30c37f5ae6f592025-02-03T06:14:03ZengWileyShock and Vibration1070-96221875-92032018-01-01201810.1155/2018/83542498354249Modeling and Stochastic Model Updating of Bolt-Jointed StructureMing Zhan0Qintao Guo1Lin Yue2Baoqiang Zhang3Nanjing University of Aeronautics and Astronautics, Nanjing, ChinaNanjing University of Aeronautics and Astronautics, Nanjing, ChinaNanjing University of Aeronautics and Astronautics, Nanjing, ChinaXiamen University, Xiamen, ChinaBolt-jointed structure is widely used in engineering fields. The dynamic characteristics of bolt-jointed structure are complex, and there is a variety of uncertainties in the jointed structure. In this study, modeling and updating of a typical bolt-jointed structure are investigated. In modeling terms, three-dimensional brick elements are used to represent the substructures, and thin-layer elements with virtual material properties are employed to represent the joint interface. Modal tests and experimental modal analysis of substructures and built-up structure are performed. A hierarchical model updating strategy based on Bayesian inference is applied to identify the unknown parameters in the substructures model and those in the overall model. Radial basis function (RBF) models are used as surrogates of time-consuming finite element model with high resolution to avoid the enormous computational cost. The results indicate that the updated model can reproduce modal frequencies used in updating and can predict those not used in the updating procedure.http://dx.doi.org/10.1155/2018/8354249 |
| spellingShingle | Ming Zhan Qintao Guo Lin Yue Baoqiang Zhang Modeling and Stochastic Model Updating of Bolt-Jointed Structure Shock and Vibration |
| title | Modeling and Stochastic Model Updating of Bolt-Jointed Structure |
| title_full | Modeling and Stochastic Model Updating of Bolt-Jointed Structure |
| title_fullStr | Modeling and Stochastic Model Updating of Bolt-Jointed Structure |
| title_full_unstemmed | Modeling and Stochastic Model Updating of Bolt-Jointed Structure |
| title_short | Modeling and Stochastic Model Updating of Bolt-Jointed Structure |
| title_sort | modeling and stochastic model updating of bolt jointed structure |
| url | http://dx.doi.org/10.1155/2018/8354249 |
| work_keys_str_mv | AT mingzhan modelingandstochasticmodelupdatingofboltjointedstructure AT qintaoguo modelingandstochasticmodelupdatingofboltjointedstructure AT linyue modelingandstochasticmodelupdatingofboltjointedstructure AT baoqiangzhang modelingandstochasticmodelupdatingofboltjointedstructure |