643 datasets found
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Federal
Algorithms for Spectral Decomposition with Applications
National Aeronautics and Space Administration —
The analysis of spectral signals for features that represent physical phenomenon is ubiquitous in the science and engineering communities. There are two main... -
Federal
Condition-based prediction of time-dependent reliability in composites
National Aeronautics and Space Administration —
This paper presents a reliability-based prediction methodology to obtain the remaining useful life of composite materials subjected to fatigue degradation.... -
Federal
Communication Optimizations for a Wireless Distributed Prognostic Framework
National Aeronautics and Space Administration —
Distributed architecture for prognostics is an essential step in prognostic research in order to enable feasible real-time system health management. Communication... -
Federal
Experimental Validation of a Prognostic Health Management System for Electro-Mechanical Actuators
National Aeronautics and Space Administration —
The work described herein is aimed to advance prognostic health management solutions for electro-mechanical actuators and, thus, increase their reliability and... -
Federal
USAGE OF DISSIMILARITY MEASURES AND MULTIDIMENSIONAL SCALING FOR LARGE SCALE SOLAR DATA ANALYSIS
National Aeronautics and Space Administration —
USAGE OF DISSIMILARITY MEASURES AND MULTIDIMENSIONAL SCALING FOR LARGE SCALE SOLAR DATA ANALYSIS Juan M Banda, Rafal Anrgyk ABSTRACT: This work describes the... -
Federal
Accelerated Aging Experiments for Prognostics of Damage Growth in Composite Materials
National Aeronautics and Space Administration —
Composite structures are gaining importance for use in the aerospace industry. Compared to metallic structures their behavior is less well understood. This lack of... -
Federal
Aviation System Monitoring and Modeling Project
National Aeronautics and Space Administration —
Air transportation, one of the most important modes of transportation, is also one of the safest. Nevertheless, the public demands that safety levels continuously... -
Federal
UNDERSTANDING SEVERE WEATHER PROCESSES THROUGH SPATIOTEMPORAL RELATIONAL RANDOM FORESTS
National Aeronautics and Space Administration —
UNDERSTANDING SEVERE WEATHER PROCESSES THROUGH SPATIOTEMPORAL RELATIONAL RANDOM FORESTS AMY MCGOVERN, TIMOTHY SUPINIE, DAVID JOHN GAGNE II, NATHANIEL TROUTMAN,... -
Federal
Experimental and Analytical Development of a Health Management System for Electro-Mechanical Actuators
National Aeronautics and Space Administration —
Expanded deployment of Electro-Mechanical Actuators (EMAs) in critical applications has created much interest in EMA Prognostic Health Management (PHM), a key... -
Federal
Accelerated Aging Experiments for Capacitor Health Monitoring and Prognostics
National Aeronautics and Space Administration —
This paper discusses experimental setups for health monitoring and prognostics of electrolytic capacitors under nominal operation and accelerated aging conditions.... -
Federal
Fatigue Damage Prognosis in FRP Composites by Combining Multi-Scale Degradation Fault Modes in an Uncertainty Bayesian Framework
National Aeronautics and Space Administration —
In this work, a framework for the estimation of the fatigue damage propagation in CFRP composites is proposed. Macro-scale phenomena such as stiffness and strength... -
Federal
Damage Propagation Modeling for Aircraft Engine Run-to-Failure Simulation
National Aeronautics and Space Administration —
This paper describes how damage propagation can be modeled within the modules of aircraft gas turbine engines. To that end, response surfaces of all sensors are... -
Federal
Anomaly Detection in a Fleet of Systems
National Aeronautics and Space Administration —
A fleet is a group of systems (e.g., cars, aircraft) that are designed and manufactured the same way and are intended to be used the same way. For example, a fleet of... -
Federal
On the Statistics and Predictability of Go-Arounds
National Aeronautics and Space Administration —
This paper takes an empirical approach to identify operational factors at busy airports that may predate go-around maneuvers. Using four years of data from San... -
Federal
Classification
National Aeronautics and Space Administration —
A supervised learning task involves constructing a mapping from an input data space (normally described by several features) to an output space. A set of training... -
Federal
Images
National Aeronautics and Space Administration —
Images for the website main pages and all configurations. The upload and access points for the other images are: Website Template RSW images BSCW Images HIRENASD Images -
Federal
ANALYZING AVIATION SAFETY REPORTS: FROM TOPIC MODELING TO SCALABLE MULTI-LABEL CLASSIFICATION
National Aeronautics and Space Administration —
ANALYZING AVIATION SAFETY REPORTS: FROM TOPIC MODELING TO SCALABLE MULTI-LABEL CLASSIFICATION AMRUDIN AGOVIC, HANHUAI SHAN, AND ARINDAM BANERJEE* Abstract. The... -
Federal
Anomaly Detection with Text Mining
National Aeronautics and Space Administration —
Many existing complex space systems have a significant amount of historical maintenance and problem data bases that are stored in unstructured text forms. The problem...
643 datasets found