Please use this identifier to cite or link to this item: https://hdl.handle.net/20.500.14279/29439
Title: The role of proactive health monitoring in performance prediction: A systems approach
Authors: Rafiq, Meena Imran 
Chryssanthopoulos, Marios K. 
Onoufriou, Toula 
Major Field of Science: Engineering and Technology
Field Category: Civil Engineering
Keywords: Bayesian updating;Structural health monitoring;systems performance;predictive models
Issue Date: 2005
Source: Safety and Reliability of Engineering Systems and Structures: ICOSSAR, 2005, p.92
Abstract: Uncertainties encompassing predictive models of concrete bridges make it difficult to decidethe timing of management activities. A methodology has been developed by the authors that use data obtained through proactive health monitoring of systems to increase the confidence in predicted performance by reduc-ing the associated uncertainties. The extent of deterioration varies considerably at different locations due tothe spatial and temporal effects of various deterioration variables involved. This limitation can be overcome by the use of sensors at various locations. Multiple sensors can also be used to increase the robustness/re-dundancy of the monitoring system at critical areas. This paper describes the development of updating proce-dures for the two mentioned scenarios, incorporating the information from multiple sensors (at different loca-tions of a system or its members) with a view of predicting the performance of the entire monitored domain with increased confidence. The advantages and limitations of the two approaches are discussed along with the scenarios where these approaches are applicable. The results for both of the cases are presented in terms of thenumber of sensors and how they influence the statistical properties of predicted performance.
URI: https://hdl.handle.net/20.500.14279/29439
ISBN: 9789059660564
Rights: © Millpress
Type: Book Chapter
Affiliation : University of Brighton 
Publication Type: Peer Reviewed
Appears in Collections:Κεφάλαια βιβλίων/Book chapters

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