Discovery of Precursors to Adverse Events using Time Series Data

A Publication, Discovering Precursors to Adverse Events in Time Series - 7 years, 10 months ago

Shared By: Vijay Manikandan Janakiraman

We develop an algorithm for automatic discovery of precursors in time series data (ADOPT). In a time series setting, a precursor may be considered as ...

Prognostic Health-Management System Development for Electromechanical Actuators

A Publication, FLEA - 8 years, 9 months ago

Shared By: EDWARD BALABAN

Electro-mechanical actuators (EMAs) have been gaining increased acceptance as safety-critical actuation devices in the next generation of aircraft and spacecraft. The aerospace manufacturers are not ...

Automated Discovery of Flight Track Anomalies

A Publication, Bryan Matthews's Collection - 9 years ago

Shared By: Bryan Matthews

As new technologies are developed to handle the complexities of the Next Generation Air Transportation System (NextGen), it is increasingly important to address both current ...

Discovery of Abnormal Flight Patterns in Flight Track Data

A Publication, Bryan Matthews's Collection - 9 years, 8 months ago

Shared By: Bryan Matthews

The National Airspace System (NAS) is an ever changing and complex engineering system. As the Next Generation Air Transportation System (NextGen) is developed, there will ...

Towards Software Health Management with Bayesian Networks

A Publication, Ashok Srivastava's Collection - 10 years, 1 month 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, ...

Automated Contingency Management for Propulsion Systems

A Publication, Prognostics CoE Publications - 10 years, 3 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 ...

Development of a Mobile Robot Test Platform and Methods for Validation of Prognostics-Enabled Decision Making ...

A Publication, EDWARD BALABAN's Collection - 10 years, 4 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 ...

A Modeling Framework for Prognostic Decision Making and its Application to UAV Mission Planning

A Publication, EDWARD BALABAN's Collection - 10 years, 4 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 ...

Sensing and characterization of EMI during intermittent connector anomalies

A Publication, EDWARD BALABAN's Collection - 10 years, 4 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 ...

An Approach to Prognostic Decision Making in the Aerospace Domain

A Publication, EDWARD BALABAN's Collection - 10 years, 4 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 ...

On-line intermittent connector anomaly detection

A Publication, EDWARD BALABAN's Collection - 10 years, 4 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 ...

A Model-based Avionic Prognostic Reasoner (MAPR)

A Publication, EDWARD BALABAN's Collection - 10 years, 4 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 ...

Propulsion IVHM Technology Experiment Overview

A Publication, EDWARD BALABAN's Collection - 10 years, 4 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 ...

A multi-feature integration method for fatigue crack detection and crack length estimation in riveted lap ...

A Publication, Prognostics CoE Publications - 10 years, 4 months ago

Shared By: Abhinav Saxena

This paper presents an experimental study of damage detection and quantification in riveted lap joints. Embedded lead zirconate titanate piezoelectric (PZT) ceramic wafer-type sensors are ...