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A New Optimal Sensor Placement Strategy Based on Modified Modal Assurance Criterion and Improved Adaptive Genetic Algorithm for Structural Health Monitoring
Joint Authors
Yang, Qiliang
Li, Juelong
Xing, Jianchun
He, Can
Wang, Ronghao
Zhang, Xun
Source
Mathematical Problems in Engineering
Issue
Vol. 2015, Issue 2015 (31 Dec. 2015), pp.1-10, 10 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2015-03-11
Country of Publication
Egypt
No. of Pages
10
Main Subjects
Abstract EN
Optimal sensor placement (OSP) is an important part in the structural health monitoring.
Due to the ability of ensuring the linear independence of the tested modal vectors, the minimum modal assurance criterion (minMAC) is considered as an effective method and is used widely.
However, some defects are present in this method, such as the low modal energy and the long computation time.
A new OSP method named IAGA-MMAC is presented in this study to settle the issue.
First, a modified modal assurance criterion (MMAC) is proposed to improve the modal energy of the selected locations.
Then, an improved adaptive genetic algorithm (IAGA), which uses the root mean square of off-diagonal elements in the MMAC matrix as the fitness function, is proposed to enhance computation efficiency.
A case study of sensor placement on a numerically simulated wharf structure is provided to verify the effectiveness of the IAGA-MMAC strategy, and two different methods are used as contrast experiments.
A comparison of these strategies shows that the optimal results obtained by the IAGA-MMAC method have a high modal strain energy, a quick computational speed, and small off-diagonal elements in the MMAC matrix.
American Psychological Association (APA)
He, Can& Xing, Jianchun& Li, Juelong& Yang, Qiliang& Wang, Ronghao& Zhang, Xun. 2015. A New Optimal Sensor Placement Strategy Based on Modified Modal Assurance Criterion and Improved Adaptive Genetic Algorithm for Structural Health Monitoring. Mathematical Problems in Engineering،Vol. 2015, no. 2015, pp.1-10.
https://search.emarefa.net/detail/BIM-1074320
Modern Language Association (MLA)
He, Can…[et al.]. A New Optimal Sensor Placement Strategy Based on Modified Modal Assurance Criterion and Improved Adaptive Genetic Algorithm for Structural Health Monitoring. Mathematical Problems in Engineering No. 2015 (2015), pp.1-10.
https://search.emarefa.net/detail/BIM-1074320
American Medical Association (AMA)
He, Can& Xing, Jianchun& Li, Juelong& Yang, Qiliang& Wang, Ronghao& Zhang, Xun. A New Optimal Sensor Placement Strategy Based on Modified Modal Assurance Criterion and Improved Adaptive Genetic Algorithm for Structural Health Monitoring. Mathematical Problems in Engineering. 2015. Vol. 2015, no. 2015, pp.1-10.
https://search.emarefa.net/detail/BIM-1074320
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1074320