Reliability updating of non-linear dynamic system using vibration data
Reliability updating has always been an important field of study in structural health monitoring due to the existence of structural properties’ errors. These errors may lead to incorrect prediction of structural behaviors. Reliability updating allows the accurate structural properties to be obtained...
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| Other Authors: | |
| Format: | Final Year Project (FYP) |
| Language: | English |
| Published: |
2018
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| Online Access: | http://hdl.handle.net/10356/75405 |
| _version_ | 1811691833787416576 |
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| author | Yang, Fan |
| author2 | Cheung Sai Hung |
| author_facet | Cheung Sai Hung Yang, Fan |
| author_sort | Yang, Fan |
| collection | NTU |
| description | Reliability updating has always been an important field of study in structural health monitoring due to the existence of structural properties’ errors. These errors may lead to incorrect prediction of structural behaviors. Reliability updating allows the accurate structural properties to be obtained by statistical method. The statistical method is based on the framework of Bayesian Statistics which is able to update the possible value of the structural properties through the prior belief and its likelihood (evidence). However, in reality the building structure always have high dimensional parameters. Using Bayes’ theorem to solve for such problem can lead to an integration of multivariate which will requires significantly computational efforts. Therefore, Subset Simulation is brought in to solve high dimensional model updating problems. Moreover, the computation of the failure probability of the structures requires enormous number of samples to be generated since the failure probability can be extremely small. Utilization of Subset Simulation breaks the failure event down to a series of intermediate events with a relatively high probability which can greatly reduce the time in sample generation. |
| first_indexed | 2024-10-01T06:26:11Z |
| format | Final Year Project (FYP) |
| id | ntu-10356/75405 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T06:26:11Z |
| publishDate | 2018 |
| record_format | dspace |
| spelling | ntu-10356/754052023-03-03T17:11:00Z Reliability updating of non-linear dynamic system using vibration data Yang, Fan Cheung Sai Hung School of Civil and Environmental Engineering DRNTU::Engineering::Civil engineering Reliability updating has always been an important field of study in structural health monitoring due to the existence of structural properties’ errors. These errors may lead to incorrect prediction of structural behaviors. Reliability updating allows the accurate structural properties to be obtained by statistical method. The statistical method is based on the framework of Bayesian Statistics which is able to update the possible value of the structural properties through the prior belief and its likelihood (evidence). However, in reality the building structure always have high dimensional parameters. Using Bayes’ theorem to solve for such problem can lead to an integration of multivariate which will requires significantly computational efforts. Therefore, Subset Simulation is brought in to solve high dimensional model updating problems. Moreover, the computation of the failure probability of the structures requires enormous number of samples to be generated since the failure probability can be extremely small. Utilization of Subset Simulation breaks the failure event down to a series of intermediate events with a relatively high probability which can greatly reduce the time in sample generation. Bachelor of Engineering (Civil) 2018-05-31T03:49:46Z 2018-05-31T03:49:46Z 2018 Final Year Project (FYP) http://hdl.handle.net/10356/75405 en Nanyang Technological University 69 p. application/pdf |
| spellingShingle | DRNTU::Engineering::Civil engineering Yang, Fan Reliability updating of non-linear dynamic system using vibration data |
| title | Reliability updating of non-linear dynamic system using vibration data |
| title_full | Reliability updating of non-linear dynamic system using vibration data |
| title_fullStr | Reliability updating of non-linear dynamic system using vibration data |
| title_full_unstemmed | Reliability updating of non-linear dynamic system using vibration data |
| title_short | Reliability updating of non-linear dynamic system using vibration data |
| title_sort | reliability updating of non linear dynamic system using vibration data |
| topic | DRNTU::Engineering::Civil engineering |
| url | http://hdl.handle.net/10356/75405 |
| work_keys_str_mv | AT yangfan reliabilityupdatingofnonlineardynamicsystemusingvibrationdata |