
Proceedings Paper
A sensitivity based method for sensor placement optimization of bridgesFormat | Member Price | Non-Member Price |
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Paper Abstract
Damage detection is the core technique of bridge health monitoring systems. Mostly, the detection is based on
comparison of initial signatures (frequency, mode shapes and so on) of intact bridge with that of damaged bridge. The
damage identification technique for bridge structure by vibration mode analysis is based on the precision of modal
experiment. In order to identify the damage in time, the problem of sensor placement is very important. The number of
the sensors and their settled locations determine the accuracy of test results. So how to distribute sensors reasonably to
get the appropriate information about the changes of structure state of the bridge is the key for the health monitoring to
large span bridges.
Taking an actual long span Bridge as an example and calculating the modal date by the finite element model, a method
based on the eigenvector sensitivity, the EI (Effective Independence) method and MAC (Modal Assurance Criterion)
method are used to optimize the placement procedure of the sensors in this paper. The numerical example shows that the
eigenvector sensitivity based method is an effective method for optimal sensor placement to identify vibration
characteristics of the bridges.
Paper Details
Date Published: 8 April 2008
PDF: 8 pages
Proc. SPIE 6932, Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2008, 69323W (8 April 2008); doi: 10.1117/12.776049
Published in SPIE Proceedings Vol. 6932:
Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2008
Masayoshi Tomizuka, Editor(s)
PDF: 8 pages
Proc. SPIE 6932, Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2008, 69323W (8 April 2008); doi: 10.1117/12.776049
Show Author Affiliations
Yu Song, Xiamen Univ. (China)
Hai Jin, Xiamen Univ. (China)
Published in SPIE Proceedings Vol. 6932:
Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2008
Masayoshi Tomizuka, Editor(s)
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