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A General Design-Oriented Resilience Measurement and Evaluation Method for Engineering Systems: Resilience Cube

RELIABILITY ENGINEERING & SYSTEM SAFETY(2024)

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Abstract
Resilience is an important property in many engineering systems that may be exposed to shocks. Existing resilience measures primarily focus on changes in system performance during the process of disturbance and recovery. These measures, however, do not directly relate to the composition of a system, which limits the improvement of resilience design. Furthermore, they are also still inadequate in the face of many special situation, such as multi-mode/wave shocks. Therefore, this paper proposes a novel resilience measurement that can be applied to various stage and complex scenarios. First, the concept of the path set is extended to extended path set space (EPSS) to establish the relationship between system design attributes and resilience. Then, resilience cube is defined to measure the system resilience based on EPSS. The measurement represents the properties of the system state itself, including the structure and composition, regardless of the shocks to which the system is exposed. The generality characteristics of the resilience cube are analyzed through different system composition and scenarios. A simulation method of resilience cubes is given for system design with random factors. Finally, the resilience of a maritime unmanned combat system (MUCS) is studied and the superiority of the proposed measurement is proven.
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Key words
Resilience cube,Measurement,Extended path set space,Design-oriented
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要点:该论文提出了一种更具通用性的工程系统韧性度量和评估方法——“韧性立方体”,它可以应用于多种复杂情景下的设计。

创新点:突破现有的韧性度量方法,不再仅关注系统在干扰和恢复过程中的性能变化,而是直接关注系统本身的组成和结构。

方法:扩展路径集空间(EPSS)的概念,建立系统设计属性和韧性的联系,然后定义韧性立方体来度量基于EPSS的系统韧性。

实验:使用马兰玻璃无人作战系统(MUCS)作为案例,证明了所提出的韧性度量方法的优越性和通用性,并提供了适用于随机因素的系统设计的韧性立方体的模拟方法。