A Quantitative Framework for Resilience Assessment of Complex Engineered Systems under Uncertainty

Journal Article (2022)
Authors

S. Geng (Safety and Security Science, Nanjing University of Aeronautics and Astronautics)

Ming Yang (Safety and Security Science)

Sifeng Liu (Nanjing University of Aeronautics and Astronautics)

Affiliation
Safety and Security Science
Copyright
© 2022 S. Geng, M. Yang, Sifeng Liu
To reference this document use:
https://doi.org/10.3303/CET2291006
More Info
expand_more
Publication Year
2022
Language
English
Copyright
© 2022 S. Geng, M. Yang, Sifeng Liu
Affiliation
Safety and Security Science
Volume number
91
Pages (from-to)
31-36
DOI:
https://doi.org/10.3303/CET2291006
Reuse Rights

Other than for strictly personal use, it is not permitted to download, forward or distribute the text or part of it, without the consent of the author(s) and/or copyright holder(s), unless the work is under an open content license such as Creative Commons.

Abstract

Complex engineered systems with various components and dynamic behaviors are connerstones to develop resilient cities and societies. These systems are robust but also vulnerable to adverse events and inevitably suffer performance degradation. An immediate question would be, “how can we manage and improve the resilience of a complex engineered system?”. This study proposes a quantitative framework to assess the resilience of complex engineered systems. The proposed framework focuses on figuring out the impact of functionality implementation on the capability of complex engineered systems to anticipate, absorb, adapt to, and restore from disruptive events. It is composed of three parts, including functionality analysis, performance evaluation, and resilience measure. Firstly, various functions are analyzed at the system level, where a functional tree is employed to investigate the relationship between functions. Then the actual performance of the system is evaluated while uncertain implementation of system functionality is considered. Finally, system resilience is measured from the perspectives of anticipation, absorption, adaptation, and restoration. Anticipation, absorption, adaptation, and restoration are critical capacities of complex engineered systems to ensure normal operation in the event of disruptions. The proposed framework provides a general approach for resilience assessment of complex engineered systems, which figures out functionality implementation and system performance under uncertainty.

Files

006.pdf
(pdf | 0.896 Mb)
License info not available