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Filtering by: Creator Jensen, Andy Remove constraint Creator: Jensen, Andy Advisor Tumer, Irem Y. Remove constraint Advisor: Tumer, Irem Y.

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  • The Structural Characteristics of Robustness in Large-Scale Complex Engineered Systems

    Creator:
    Walsh, Hannah S.
    Abstract:
    Modern engineered systems are increasingly integrated into society, decentralized, and interconnected. However, scale and complexity create unique challenges in system design, such as emergent behavior and unintended consequences. This work investigates the structural characteristics of robustness in complex engineered systems by identifying patterns of under-recognized vulnerabilities at various levels of...
    Resource Type:
    Dissertation
    Full Text:
    Y. Tumer, Andy Dong Modern engineered systems are increasingly integrated into society

  • A Framework to Evaluate the Risk of Human- and Component-related Vulnerability Interactions

    Creator:
    Irshad, Lukman
    Abstract:
    Most accidents and malfunctions in complex engineered systems are attributed to human error. However, a closer inspection would reveal that such mishaps often emerge as a result of poor design and human- and component-related vulnerabilities acting together. To fully understand and mitigate potential risks, the effects of such interactions between...
    Resource Type:
    Dissertation
    Full Text:
    like to thank my committee members Dr. Andy Dong, Dr. Chris Sanchez, and Dr. Judy Liu, whose inputs

  • Evaluating complex engineered systems using complex network representations

    Creator:
    Haley, Brandon M.
    Abstract:
    This thesis is the combination of two research publications working toward a unified strategy in which to represent complex engineered systems as complex networks. Current engineered system modeling techniques segment large complex models into multiple groups to be simulated independently. These methods restrict the evaluations of such complex systems as...
    Resource Type:
    Masters Thesis
    Full Text:
    like to thank Dr. Andy Dong at the University of Sydney. Like Dr. Tumer, he has challenged me to think

  • A Computational Framework for Resilience-Informed Design

    Creator:
    Hulse, Daniel E.
    Abstract:
    It is desirable for complex engineered systems to perform missions efficiently and economically, even when these missions' complex, variable, long-term operational profiles make it likely for hazards to arise. It is thus important to design these systems to be resilient so that they will actively prevent and recover from hazards...
    Resource Type:
    Dissertation
    Full Text:
    , Hannah Walsh, Andy Dong, Christopher Hoyle, Irem Tumer, Chetan Kulkarni, and Kai Goebel. fmdtools: A

  • A framework for assessing and improving the resilience of complex engineered systems during the early design process

    Creator:
    Mehrpouyan, Hoda
    Abstract:
    As modern systems continue to increase in size and complexity, they pose significant safety and risk management challenges. System engineers and much of the government research efforts are focused on understanding the attributes and characteristics that emerge from the interactions of components and subsystems. As a result, the objective of...
    Resource Type:
    Dissertation
    Full Text:
    Professor Andy Dong at University of Sydney, who were a great col­ laborator, and provided me exposure to a

  • A risk-informed decision making framework accounting for early-phase conceptual design of complex systems

    Creator:
    Van Bossuyt, Douglas L.
    Abstract:
    A gap exists in the methods used in industry and available in academia that prevents customers and engineers from having a voice when considering engineering risk appetite in the dynamic shaping of early-phase conceptual design trade study outcomes. Current methods used in Collaborative Design Centers either collect risk information after...
    Resource Type:
    Dissertation
    Full Text:
    . Special thanks goes to Andy Dong and Lucila Carvalho at University of Sydney (USyd) who brought me to