By a News Reporter-Staff News Editor at Computer Weekly News -- Fresh data on Software Engineering are presented in a new report. According to news reporting originating from Seoul, South Korea, by VerticalNews correspondents, research stated, "This study proposes a new robust multi-objective maintenance planning approach of the deteriorating bridges against uncertainty in performance degradation model. The main focus is to guarantee the performance requirements of the bridge by the scheduled maintenance interventions even in the presence of uncertainty in time-dependent performance degradation model."
Our news editors obtained a quote from the research from Seoul National University, "The uncertainties are modeled as the perturbation of the system parameters. These are simulated by a sampling method, and incorporated into the GA-based multi-objective optimization framework which produces a set of optimal preventive maintenance scenarios. In order to focus the searching on the most preferable region, the performance models of the bridge components are all integrated into single overall performance measure by using the preference-based objective-space reduction method. Numerical example of a typical prestressed concrete girder bridge is provided to demonstrate the new robust maintenance scheduling approach. For comparison purpose, non-robust multi-objective maintenance planning without considering uncertainty of the bridge performance is also provided."
According to the news editors, the research concluded: "It is verified that the proposed approach can produce successfully-performing maintenance scenarios under the perturbation of bridge condition grades while maintaining well-balanced maintenance strategy both in terms of bridge performance and maintenance cost."
For more information on this research see: Robust multi-objective maintenance planning of deteriorating bridges against uncertainty in performance model. Advances in Engineering Software, 2013;65():32-42. Advances in Engineering Software can be contacted at: Elsevier Sci Ltd, The Boulevard, Langford Lane, Kidlington, Oxford OX5 1GB, Oxon, England. (Elsevier - www.elsevier.com; Advances in Engineering Software - www.elsevier.com/wps/product/cws_home/422911)
The news editors report that additional information may be obtained by contacting S.Y. Ok, Seoul National University, Korea Bridge Design & Engn Res Center, Seoul 151742, South Korea. Additional authors for this research include S.Y. Lee and W. Park.
Keywords for this news article include: Asia, Seoul, South Korea, Software Engineering
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