7.1.1 Survivability Design Principles for Enhanced Concept Generation and Evaluation

Abstract

Abstract. Survivability is the ability of systems to minimize the impact of finite-duration disturbances on value delivery. Previous work developed and tested a set of seventeen survivability design principles spanning susceptibility reduction, vulnerability reduction, and resilience enhancement strategies. In this paper, a process is described for applying the survivability design principles to the concept generation phase of Multi-Attribute Tradespace Exploration, a system analysis methodology integrating decision theory with model-based design. Applying the design principles serves both to augment the creativity of system designers by ensuring consideration of a broad tradespace of design alternatives and to quickly screen a large number of candidate design variables before proceeding to concept evaluation.

Defense Installation Energy Resilience for Changing Operational Requirements

“…With sufficient DERs in a microgrid, parallel reliability networks may exist to ensure vital equipment continues to receive power supplies, even in the event of individual component failures or damage [58]. In the event of a destructive scenario such as severe weather or adversary action, the microgrid system needs to minimize its vulnerability to cascading damage events while increasing the system recoverability to provide adequate power for mission needs of the military base [59]. Thus, it is important to understand the missions that a microgrid may be called upon to support to ensure the missions will receive uninterrupted power despite emergent events, severe weather, adversary action, and other such events.…”

Nonfunctional Requirements in Systems Analysis and Design

“…There are several design approaches that propose frameworks for addressing system survivability that include both (1) the integrated engineering framework (Ellison et al 1997) and (2) the bio-networking architecture (Nakano and Suda 2007). However, the most impressive work has been done by Mathew Richards and his colleagues at the Massachusetts Institute of Technology (Richards et al 2008(Richards et al , 2009 in which they focus on the development of design principles that address each of the three survivability elements. Table 11.7 displays the three survivability elements and the associated design principles that may be invoked when addressing survivability as a purposeful activity during system design endeavors.…”

Multi-Attribute Tradespace Exploration for Survivability

“…The concept generation phase is extended by applying the survivability design principles to the design vector. 42 This application ensures that a broad portfolio of behavioral and structural survivability strategies is considered for inclusion in the subsequent tradespace exploration. In the design evaluation phase, the static MATE analysis of estimating the lifecycle cost and multi-attribute utility of each design alternative is supplemented by a dynamic, lifecycle analysis to model the performance of design alternatives over distributions of representative disturbances from a Monte Carlo analysis.…”