Real-Time Impact Visualization Inspection of Aerospace Composite Structures with Distributed Sensors
For the future design of smart aerospace structures, the development and application of a reliable, real-time and automatic monitoring and diagnostic technique is essential. Thus, with distributed sensor networks, a real-time automatic structural health monitoring (SHM) technique is designed and inv...
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| Format: | Article |
| Language: | English |
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MDPI AG
2015-07-01
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| Series: | Sensors |
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| Online Access: | http://www.mdpi.com/1424-8220/15/7/16536 |
| _version_ | 1798042081805991936 |
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| author | Liang Si Horst Baier |
| author_facet | Liang Si Horst Baier |
| author_sort | Liang Si |
| collection | DOAJ |
| description | For the future design of smart aerospace structures, the development and application of a reliable, real-time and automatic monitoring and diagnostic technique is essential. Thus, with distributed sensor networks, a real-time automatic structural health monitoring (SHM) technique is designed and investigated to monitor and predict the locations and force magnitudes of unforeseen foreign impacts on composite structures and to estimate in real time mode the structural state when impacts occur. The proposed smart impact visualization inspection (IVI) technique mainly consists of five functional modules, which are the signal data preprocessing (SDP), the forward model generator (FMG), the impact positioning calculator (IPC), the inverse model operator (IMO) and structural state estimator (SSE). With regard to the verification of the practicality of the proposed IVI technique, various structure configurations are considered, which are a normal CFRP panel and another CFRP panel with “orange peel” surfaces and a cutout hole. Additionally, since robustness against several background disturbances is also an essential criterion for practical engineering demands, investigations and experimental tests are carried out under random vibration interfering noise (RVIN) conditions. The accuracy of the predictions for unknown impact events on composite structures using the IVI technique is validated under various structure configurations and under changing environmental conditions. The evaluated errors all fall well within a satisfactory limit range. Furthermore, it is concluded that the IVI technique is applicable for impact monitoring, diagnosis and assessment of aerospace composite structures in complex practical engineering environments. |
| first_indexed | 2024-04-11T22:30:32Z |
| format | Article |
| id | doaj.art-c14ed07ba56a46d182c8aa8379373b44 |
| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-04-11T22:30:32Z |
| publishDate | 2015-07-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj.art-c14ed07ba56a46d182c8aa8379373b442022-12-22T03:59:26ZengMDPI AGSensors1424-82202015-07-01157165361655610.3390/s150716536s150716536Real-Time Impact Visualization Inspection of Aerospace Composite Structures with Distributed SensorsLiang Si0Horst Baier1Institute of Lightweight Structures, Faculty of Mechanical Engineering, Technische Universität München, Boltzmannstr. 15, Garching 85748, GermanyInstitute of Lightweight Structures, Faculty of Mechanical Engineering, Technische Universität München, Boltzmannstr. 15, Garching 85748, GermanyFor the future design of smart aerospace structures, the development and application of a reliable, real-time and automatic monitoring and diagnostic technique is essential. Thus, with distributed sensor networks, a real-time automatic structural health monitoring (SHM) technique is designed and investigated to monitor and predict the locations and force magnitudes of unforeseen foreign impacts on composite structures and to estimate in real time mode the structural state when impacts occur. The proposed smart impact visualization inspection (IVI) technique mainly consists of five functional modules, which are the signal data preprocessing (SDP), the forward model generator (FMG), the impact positioning calculator (IPC), the inverse model operator (IMO) and structural state estimator (SSE). With regard to the verification of the practicality of the proposed IVI technique, various structure configurations are considered, which are a normal CFRP panel and another CFRP panel with “orange peel” surfaces and a cutout hole. Additionally, since robustness against several background disturbances is also an essential criterion for practical engineering demands, investigations and experimental tests are carried out under random vibration interfering noise (RVIN) conditions. The accuracy of the predictions for unknown impact events on composite structures using the IVI technique is validated under various structure configurations and under changing environmental conditions. The evaluated errors all fall well within a satisfactory limit range. Furthermore, it is concluded that the IVI technique is applicable for impact monitoring, diagnosis and assessment of aerospace composite structures in complex practical engineering environments.http://www.mdpi.com/1424-8220/15/7/16536real timeimpact monitoringhybrid thresholding filterfast genetic algorithmparameter estimationcomposite structuresrandom vibration noisesstructural state awareness |
| spellingShingle | Liang Si Horst Baier Real-Time Impact Visualization Inspection of Aerospace Composite Structures with Distributed Sensors Sensors real time impact monitoring hybrid thresholding filter fast genetic algorithm parameter estimation composite structures random vibration noises structural state awareness |
| title | Real-Time Impact Visualization Inspection of Aerospace Composite Structures with Distributed Sensors |
| title_full | Real-Time Impact Visualization Inspection of Aerospace Composite Structures with Distributed Sensors |
| title_fullStr | Real-Time Impact Visualization Inspection of Aerospace Composite Structures with Distributed Sensors |
| title_full_unstemmed | Real-Time Impact Visualization Inspection of Aerospace Composite Structures with Distributed Sensors |
| title_short | Real-Time Impact Visualization Inspection of Aerospace Composite Structures with Distributed Sensors |
| title_sort | real time impact visualization inspection of aerospace composite structures with distributed sensors |
| topic | real time impact monitoring hybrid thresholding filter fast genetic algorithm parameter estimation composite structures random vibration noises structural state awareness |
| url | http://www.mdpi.com/1424-8220/15/7/16536 |
| work_keys_str_mv | AT liangsi realtimeimpactvisualizationinspectionofaerospacecompositestructureswithdistributedsensors AT horstbaier realtimeimpactvisualizationinspectionofaerospacecompositestructureswithdistributedsensors |