See All Resources (468)
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Model-based Prognostics with Concurrent Damage Progression Processes
A Publication, Prognostics CoE Publications - 11 years, 2 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 ...
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Temperature Stratification in a Cryogenic Fuel Tank
A Publication, Prognostics CoE Publications - 11 years, 2 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 ...
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A Publication, EDWARD BALABAN's Collection - 11 years, 2 months ago
Shared By: EDWARD BALABAN
As fault diagnosis and prognosis systems in aerospace applications become more capable, the ability to utilize information supplied by them becomes increasingly important. While certain ...
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A Modeling Framework for Prognostic Decision Making and its Application to UAV Mission Planning
A Publication, EDWARD BALABAN's Collection - 11 years, 2 months ago
Shared By: EDWARD BALABAN
The goal of prognostic decision making (PDM) is to utilize information on anticipated system health changes in selecting future actions. One of the key challenges ...
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Sensing and characterization of EMI during intermittent connector anomalies
A Publication, EDWARD BALABAN's Collection - 11 years, 2 months ago
Shared By: EDWARD BALABAN
This paper presents a new on-line methodology for detecting intermittent disconnection failures. The detection principle operates on the fundamental Lorentz Law that states that sudden ...
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An Approach to Prognostic Decision Making in the Aerospace Domain
A Publication, EDWARD BALABAN's Collection - 11 years, 2 months ago
Shared By: EDWARD BALABAN
The field of Prognostic Health Management (PHM) has been undergoing rapid growth in recent years, with development of increasingly sophisticated techniques for diagnosing faults in ...
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On-line intermittent connector anomaly detection
A Publication, EDWARD BALABAN's Collection - 11 years, 2 months ago
Shared By: EDWARD BALABAN
This paper investigates a non-traditional use of differential current sensor and current sensor to detect intermittent disconnection problems in connectors. An intermittent disconnect, often resulting ...
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A Model-based Avionic Prognostic Reasoner (MAPR)
A Publication, EDWARD BALABAN's Collection - 11 years, 2 months ago
Shared By: EDWARD BALABAN
The Model-based Avionic Prognostic Reasoner (MAPR) presented in this paper is an innovative solution for non-intrusively monitoring the state of health (SoH) and predicting the ...
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Battery Charge Depletion Prediction on an Electric Aircraft
A Publication, Brian Bole's Collection - 11 years, 2 months ago
Shared By: Brian Bole
Validation of prognostic technologies through ground and flight tests is an important step in maturing these novel technologies and deploying them on real-world systems. To ...
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Propulsion IVHM Technology Experiment Overview
A Publication, EDWARD BALABAN's Collection - 11 years, 2 months ago
Shared By: EDWARD BALABAN
NASA researchers recently demonstrated successful real-time fault detection and isolation of a virtual reusable launch vehicle main propulsion system. Using a detailed simulation of a ...
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A Publication, Brian Bole's Collection - 11 years, 2 months ago
Shared By: Brian Bole
Software-in-the-loop and hardware-in-the-loop testing of failure prognostics and decision making tools for aircraft systems will facilitate more comprehensive and cost-effective testing than what is practical ...
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Removing Spikes While Preserving Data and Noise using Wavelet Filter Banks
A Publication, Prognostics CoE Publications - 11 years, 2 months ago
Shared By: SCOTT POLL
Many diagnostic datasets suffer from the adverse effects of spikes that are embedded in data and noise. For example, this is true for electrical power ...
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New Sensing Application to Diagnose Power Semiconductor Aging in Actuator Power Drive Systems
A Publication, Prognostics CoE Publications - 11 years, 2 months ago
Shared By: SCOTT POLL
This paper presents a new sensing application to diagnose power semiconductor aging in power drive systems. It has been shown previously that device parasitic characteristics ...
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Estimation of Faults in DC Electrical Power System
A Publication, Prognostics CoE Publications - 11 years, 2 months ago
Shared By: SCOTT POLL
This paper demonstrates a novel optimizationbased approach to estimating fault states in a DC power system. The model includes faults changing the circuit topology along ...
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Inverse Modeling Using a Wireless Sensor Network (WSN) for Personalized Daylight Harvesting
A Publication, Prognostics CoE Publications - 11 years, 2 months ago
Shared By: SCOTT POLL
Smart lighting systems in low energy commercial buildings can be expensive to implement and commission. Studies have also shown that only 50% of these systems ...