See All Resources (471)

  • sort by:

  • Estimation and Bias Correction of Aerosol Abundance using Data-driven Machine Learning and Remote Sensing

    A Publication, Deniz Gencaga's Collection - 6 years, 7 months ago

    Shared By: Deniz Gencaga

    Abstract—Air quality information is increasingly becoming a public health concern, since some of the aerosol particles pose harmful effects to peoples health. One widely available ...

    meatball
  • Towards Software Health Management with Bayesian Networks

    A Publication, Ashok Srivastava's Collection - 6 years, 7 months ago

    Shared By: Ashok Srivastava

    As software and software intensive systems are becoming increasingly ubiquitous, the impact of failures can be tremendous. In some industries such as aerospace, medical devices, ...

    meatball
  • Development of Wing Aero-Structural Analysis Models and Optimization Survey for the NASA Common Research Model

    A Publication, Structural Efficiency - 6 years, 8 months ago

    Shared By: JAMES MOORE

    Development of a generic wingbox finite element model set based on the NASA Common Research model (CRM) was undertaken to examine fundamental structural dynamics with ...

    Image
  • Energy Analysis of Multi-Function Devices in an Office Environment

    A Publication, Sustainability Base - 6 years, 8 months ago

    Shared By: RODNEY MARTIN

    As part of an effort to monitor electricity usage by plug loads in a new high performance office building, plug load management devices were deployed ...

    meatball
  • Fault Adaptive Control of Overactuated Systems Using Prognostic Estimation

    A Publication, Brian Bole's Collection - 6 years, 9 months ago

    Shared By: Brian Bole

    Most fault adaptive control research addresses the preservation of system stability or functionality in the presence of a specific failure (fault). This paper examines the ...

    meatball
  • Adaptive Load-Allocation for Prognosis-Based Risk Management

    A Publication, Brian Bole's Collection - 6 years, 9 months ago

    Shared By: Brian Bole

    It is an inescapable truth that no matter how well a system is designed it will degrade, and if degrading parts are not repaired or ...

    meatball
  • Precursor Parameter Identification for Insulated Gate Bipolar Transistor (IGBT) Prognostics

    A Publication, Jose Celaya Galvan's Collection - 6 years, 9 months ago

    Shared By: Jose Celaya Galvan

    Precursor parameters have been identified to enable development of a prognostic approach for insulated gate bipolar transistors (IGBT). The IGBT were subjected to thermal overstress ...

  • Simulation-based Design and Validation of Automated Contingency Management for Propulsion Systems

    A Publication, Prognostics CoE Publications - 6 years, 9 months ago

    Shared By: Abhinav Saxena

    This paper introduces a novel Prognostics-enhanced Automated Contingency Management (or ACM+P) paradigm based on both current health state (diagnosis) and future health state estimates (prognosis) ...

    meatball
  • Automated Contingency Management for Propulsion Systems

    A Publication, Prognostics CoE Publications - 6 years, 9 months ago

    Shared By: Abhinav Saxena

    Increasing demand for improved reliability and survivability of mission-critical systems is driving the development of health monitoring and Automated Contingency Management (ACM) systems. An ACM ...

    meatball
  • Common Research Model Wingbox Finite Element Models (V12, V14, V15)

    A Publication, Structural Efficiency - 6 years, 9 months ago

    Shared By: JAMES MOORE

    Several semi-span Wingbox structures were developed based on the CRM OML (outer mold line) loft provided by LaRC-SFW and contains combinations of explicitly modeled shell ...

  • Improving Multiple Fault Diagnosability using Possible Conflicts

    A Publication, Prognostics CoE Publications - 6 years, 9 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 - 6 years, 9 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 - 6 years, 9 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 - 6 years, 9 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 - 6 years, 9 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