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Federal
ADAPTIVE FAULT DETECTION ON LIQUID PROPULSION SYSTEMS WITH VIRTUAL SENSORS: ALGORITHMS AND ARCHITECTURES
National Aeronautics and Space Administration —
Prior to the launch of STS-119 NASA had completed a study of an issue in the flow control valve (FCV) in the Main Propulsion System of the Space Shuttle using an... -
Federal
Probabilistic Fault Diagnosis in Electrical Power Systems
National Aeronautics and Space Administration —
Electrical power systems play a critical role in spacecraft and aircraft. This paper discusses our development of a diagnostic capability for an electrical power... -
Federal
A multi-feature integration method for fatigue crack detection and crack length estimation in riveted lap joints using Lamb waves
National Aeronautics and Space Administration —
This paper presents an experimental study of damage detection and quantification in riveted lap joints. Embedded lead zirconate titanate piezoelectric (PZT) ceramic... -
Federal
Anomaly Detection from ASRS Databases of Textual Reports
National Aeronautics and Space Administration —
Our primary goal is to automatically analyze textual reports from the Aviation Safety Reporting System (ASRS) database to detect/discover the anomaly categories... -
Federal
Aerospace Example
National Aeronautics and Space Administration —
This is a textbook, created example for illustration purposes. The System takes inputs of Pt, Ps, and Alt, and calculates the Mach number using the Rayleigh Pitot... -
Federal
Anomaly Detection for Complex Systems
National Aeronautics and Space Administration —
In performance maintenance in large, complex systems, sensor information from sub-components tends to be readily available, and can be used to make predictions about... -
Federal
Experimental Data Collection and Modeling for Nominal and Fault Conditions on Electro-Mechanical Actuators
National Aeronautics and Space Administration —
Being relatively new to the field, electromechanical actuators in aerospace applications lack the knowledge base compared to ones accumulated for the other actuator... -
Federal
Effects of Lightning Injection on Power-MOSFETs
National Aeronautics and Space Administration —
Lightning induced damage is one of the major concerns in aircraft health monitoring. Such short-duration high voltages can cause significant damage to electronic... -
Federal
Pilot Study of a Plug Load Management System: Preparing for Sustainability Base
National Aeronautics and Space Administration —
NASA Ames Research Center’s Sustainability Base is a new 50,000 sq. ft. high-performance office building targeting a LEED Platinum rating. Plug loads are expected to... -
Federal
A Model-based Avionic Prognostic Reasoner (MAPR)
National Aeronautics and Space Administration —
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... -
Federal
DXC'11 Industrial Track Sample Data
National Aeronautics and Space Administration —
The sample scenarios provided here are competition scenarios from Diagnostic Problems I and II of DXC'10. The zip file has a spreadsheet (and pdf) that lists the... -
Federal
Towards Accelerated Aging Methodologies and Health Management of Power MOSFETs
National Aeronautics and Space Administration —
Understanding aging mechanisms of electronic components is of extreme importance in the aerospace domain where they are part of numerous critical subsystems including... -
Federal
DXC'11 Industrial Track Competition Data
National Aeronautics and Space Administration —
Competition data, including nominal and faulty scenarios, for Diagnostic Problem I of the Third International Diagnostic Competition. Three file formats are provided,... -
Federal
Integrated fatigue damage diagnosis and prognosis under uncertainties
National Aeronautics and Space Administration —
An integrated fatigue damage diagnosis and prognosis framework is proposed in this paper. The proposed methodology integrates a Lamb wave-based damage detection... -
Federal
Sharepoint Link
National Aeronautics and Space Administration —
Link to Sharepoint website containing a repository of more detailed internal information for authorized users -
Federal
HIRENASD Experimental Data, Individual Plots
National Aeronautics and Space Administration —
The HIRENASD data produced by analyzing the experimental data is repeated on this website, for those who can not download the information in the zip format found on...