Framework for Designing Virtual Water and Power Supply Networks with Interdependent Characteristics for Resilience Assessment

Abstract

Urban water and power supply networks with interdependent characteristics are essential components of urban infrastructures and play an important role in maintaining the daily operations and post-disaster recovery of cities. The aim of this study is to provide a method for researchers of resilient cities to build virtual water and power supply networks according to their basic physical mechanisms so that they can complete the risk or resilience evaluation of benchmark cities when some confidential infrastructure information is difficult to obtain. The innovation is that a new design framework for urban virtual water and power networks with interdependent characteristics combined with geographic information is suggested based on the perspective of practical engineering. After giving an overview of the framework, this paper presents the planning and design of the water and power supply networks as well as the interdependence between them in detail. Then the water and power supply networks of a virtual city called Virtual Shangcheng City are established, which verify the feasibility and practicality of the approach. This framework can establish virtual water and power supply networks with interdependent characteristics that conform to actual engineering and urban geographic information characteristics. Moreover, it can provide an effective modeling method for water and power supply networks in the absence of data for urban resilience and disaster risk studies.

A novel index for shearer system resilience in underground coal mines based on the operational environment

“…Recently, reliability has been considered an indicator in many preparatory studies. 26,49,60,61 Reliability has been defined as the ability of a component or system to execute the required function under specified conditions and periods. [62][63][64][65] Also, after the creation of disturbance, for rapid access to the recovery system, a suitable recovery concept is required, which is an indicator of the maintainability of a system to be repaired under specific operational conditions and reimplementation of the desired activity in a way the maintenance plan is implemented under some conditions using the available resources.…”

“…12,35,72 Therefore, supportability, maintainability, organizational resilience, economic resilience, and PHM system efficiency are considered indicators of the system recovery stage. 61 In the following, according to what is mentioned in Figure 2, the procedure for implementation of resilience analysis of engineering systems is explained with consideration for the risk factors. This Figure indicates the resilience of technical systems in which the reliability and maintainability calculations have been considered at the first stage.…”