Matthew Daigle

Member since: Sep 29, 2010, NASA Ames Research Center

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  • An Event-based Distributed Diagnosis Framework using Structural Model Decomposition

    A Publication, Prognostics CoE Publications - 7 years, 3 months ago

    Shared By: Matthew Daigle

    Complex engineering systems require efficient on-line fault diagnosis methodologies to improve safety and reduce maintenance costs. Traditionally, diagnosis approaches are centralized, but these solutions do ...

    meatball
  • Distributed Prognostics Based on Structural Model Decomposition

    A Publication, Prognostics CoE Publications - 7 years, 3 months ago

    Shared By: Matthew Daigle

    Within systems health management, prognostics focuses on predicting the remaining useful life of a system. In the model-based prognostics paradigm, physics-based models are constructed that ...

    meatball
  • Improving Multiple Fault Diagnosability using Possible Conflicts

    A Publication, Prognostics CoE Publications - 7 years, 10 months ago

    Shared By: Matthew Daigle

    Multiple fault diagnosis is a difficult problem for dynamic systems. Due to fault masking, compensation, and relative time of fault occurrence, multiple faults can manifest ...

    meatball
  • A Comparison of Filter-based Approaches for Model-based Prognostics

    A Publication, Prognostics CoE Publications - 7 years, 10 months ago

    Shared By: Matthew Daigle

    Model-based prognostics approaches use domain knowledge about a system and its failure modes through the use of physics-based models. Model-based prognosis is generally divided into ...

    meatball
  • Improving Diagnosability of Hybrid Systems through Active Diagnosis

    A Publication, Prognostics CoE Publications - 7 years, 10 months ago

    Shared By: Matthew Daigle

    Fault diagnosis is key to ensuring system safety through fault-adaptive control. This task is diffcult in hybrid systems with combined continuous and discrete behaviors because ...

    meatball
  • An Event-based Approach to Hybrid Systems Diagnosability

    A Publication, Prognostics CoE Publications - 7 years, 10 months ago

    Shared By: Matthew Daigle

    Diagnosability is an important issue in the design of diagnostic systems, because it helps identify whether sufficient information is available to distinguish all the faults. ...

    meatball
  • Dynamical Model of Rocket Propellant Loading with Liquid Hydrogen

    A Publication, Prognostics CoE Publications - 7 years, 10 months ago

    Shared By: Matthew Daigle

    A dynamical model describing the multi-stage process of rocket propellant loading has been developed. It accounts for both the nominal and faulty regimes of cryogenic ...

    meatball
  • Model-based Prognostics with Concurrent Damage Progression Processes

    A Publication, Prognostics CoE Publications - 7 years, 10 months ago

    Shared By: Matthew Daigle

    Model-based prognostics approaches rely on physics-based models that describe the behavior of systems and their components. These models must account for the several different damage ...

    meatball
  • Temperature Stratification in a Cryogenic Fuel Tank

    A Publication, Prognostics CoE Publications - 7 years, 10 months ago

    Shared By: Matthew Daigle

    A reduced dynamical model describing temperature stratification effects driven by natural convection in a liquid hydrogen cryogenic fuel tank has been developed. It accounts for ...

    meatball
  • Model-based Prognostics with Fixed-lag Particle Filters

    A Publication, Prognostics CoE Publications - 9 years, 9 months ago

    Shared By: Matthew Daigle

    Model-based prognostics exploits domain knowledge of the system, its components, and how they fail by casting the underlying physical phenomena in a physics-based model that ...

    meatball

Matthew's Projects (4)

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