Optimisation of multi-type sensor placement for SHM based on application demands

Rohan Soman; Toula Onoufriou; Renos Votsis; Christis Chrysostomou; Marios Kyriakides

Optimisation of multi-type sensor placement for SHM based on application demands

Rohan Soman, Toula Onoufriou, Renos Votsis, Christis Chrysostomou, Marios Kyriakides

Department of Engineering

Cyprus University of Technology

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

Abstract

The research presents a multi-objective optimisation problem for a multi-type sensor placement for Structural Health Monitoring (SHM) on a long span bridge. The problem is formulated for simultaneous placement of strain sensors and accelerometers (heterogeneous network) based on the application demands for SHM system. The primary demands for SHM are Modal Identification (MI) and Accurate Mode Shape Expansion (AMSE). The optimisation problem is solved through the use of Integer Genetic Algorithm (GA) to maximise a common metric to ensure adequate MI and AMSE. The performance of the joint optimisation problem solved by GA is compared with other established methods for homogenous sensor placement. The results indicate that the use of a multi-type sensor system improves the quality of SHM and the use of GA improves the overall quality of the sensor placement compared to other methods for optimisation of sensor placement.

Original language	English
Title of host publication	Long Span Bridges and Roofs - Development, Design and Implementation
Publisher	International Association for Bridge and Structural Engineering (IABSE)
ISBN (Electronic)	9783857481284
Publication status	Published - 2013
Event	36th International Association for Bridge and Structural Engineering Symposium on Long Span Bridges and Roofs - Development, Design and Implementation - Kolkata, India Duration: 24 Sept 2013 → 27 Sept 2013

Other

Other	36th International Association for Bridge and Structural Engineering Symposium on Long Span Bridges and Roofs - Development, Design and Implementation
Country/Territory	India
City	Kolkata
Period	24/09/13 → 27/09/13

Keywords

GA
Long span bridge
Modal clarity index
Modal identification
Mode shape expansion
Sensor placement optimisation

Cite this

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title = "Optimisation of multi-type sensor placement for SHM based on application demands",

abstract = "The research presents a multi-objective optimisation problem for a multi-type sensor placement for Structural Health Monitoring (SHM) on a long span bridge. The problem is formulated for simultaneous placement of strain sensors and accelerometers (heterogeneous network) based on the application demands for SHM system. The primary demands for SHM are Modal Identification (MI) and Accurate Mode Shape Expansion (AMSE). The optimisation problem is solved through the use of Integer Genetic Algorithm (GA) to maximise a common metric to ensure adequate MI and AMSE. The performance of the joint optimisation problem solved by GA is compared with other established methods for homogenous sensor placement. The results indicate that the use of a multi-type sensor system improves the quality of SHM and the use of GA improves the overall quality of the sensor placement compared to other methods for optimisation of sensor placement.",

keywords = "GA, Long span bridge, Modal clarity index, Modal identification, Mode shape expansion, Sensor placement optimisation",

author = "Rohan Soman and Toula Onoufriou and Renos Votsis and Christis Chrysostomou and Marios Kyriakides",

year = "2013",

language = "English",

booktitle = "Long Span Bridges and Roofs - Development, Design and Implementation",

publisher = "International Association for Bridge and Structural Engineering (IABSE)",

note = "36th International Association for Bridge and Structural Engineering Symposium on Long Span Bridges and Roofs - Development, Design and Implementation ; Conference date: 24-09-2013 Through 27-09-2013",

}

Soman, R, Onoufriou, T, Votsis, R, Chrysostomou, C & Kyriakides, M 2013, Optimisation of multi-type sensor placement for SHM based on application demands. in Long Span Bridges and Roofs - Development, Design and Implementation. International Association for Bridge and Structural Engineering (IABSE), 36th International Association for Bridge and Structural Engineering Symposium on Long Span Bridges and Roofs - Development, Design and Implementation, Kolkata, India, 24/09/13.

Optimisation of multi-type sensor placement for SHM based on application demands. / Soman, Rohan; Onoufriou, Toula; Votsis, Renos et al.
Long Span Bridges and Roofs - Development, Design and Implementation. International Association for Bridge and Structural Engineering (IABSE), 2013.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

TY - GEN

T1 - Optimisation of multi-type sensor placement for SHM based on application demands

AU - Soman, Rohan

AU - Onoufriou, Toula

AU - Votsis, Renos

AU - Chrysostomou, Christis

AU - Kyriakides, Marios

PY - 2013

Y1 - 2013

N2 - The research presents a multi-objective optimisation problem for a multi-type sensor placement for Structural Health Monitoring (SHM) on a long span bridge. The problem is formulated for simultaneous placement of strain sensors and accelerometers (heterogeneous network) based on the application demands for SHM system. The primary demands for SHM are Modal Identification (MI) and Accurate Mode Shape Expansion (AMSE). The optimisation problem is solved through the use of Integer Genetic Algorithm (GA) to maximise a common metric to ensure adequate MI and AMSE. The performance of the joint optimisation problem solved by GA is compared with other established methods for homogenous sensor placement. The results indicate that the use of a multi-type sensor system improves the quality of SHM and the use of GA improves the overall quality of the sensor placement compared to other methods for optimisation of sensor placement.

AB - The research presents a multi-objective optimisation problem for a multi-type sensor placement for Structural Health Monitoring (SHM) on a long span bridge. The problem is formulated for simultaneous placement of strain sensors and accelerometers (heterogeneous network) based on the application demands for SHM system. The primary demands for SHM are Modal Identification (MI) and Accurate Mode Shape Expansion (AMSE). The optimisation problem is solved through the use of Integer Genetic Algorithm (GA) to maximise a common metric to ensure adequate MI and AMSE. The performance of the joint optimisation problem solved by GA is compared with other established methods for homogenous sensor placement. The results indicate that the use of a multi-type sensor system improves the quality of SHM and the use of GA improves the overall quality of the sensor placement compared to other methods for optimisation of sensor placement.

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KW - Modal clarity index

KW - Modal identification

KW - Mode shape expansion

KW - Sensor placement optimisation

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BT - Long Span Bridges and Roofs - Development, Design and Implementation

PB - International Association for Bridge and Structural Engineering (IABSE)

T2 - 36th International Association for Bridge and Structural Engineering Symposium on Long Span Bridges and Roofs - Development, Design and Implementation

Y2 - 24 September 2013 through 27 September 2013

ER -

Optimisation of multi-type sensor placement for SHM based on application demands

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