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Federal
Space Shuttle Main Propulsion System Anomaly Detection: A Case Study
National Aeronautics and Space Administration —
The space shuttle main engine (SSME) is part of the Main Propnlsion System (MPS) which is an extremely complex system containing several sub-systems and components,... -
Federal
Prognostics in Battery Health Management
National Aeronautics and Space Administration —
Batteries represent complex systems whose internal state vari- ables are either inaccessible to sensors or hard to measure un- der operational conditions. This work... -
Federal
Entropy-based probabilistic fatigue damage prognosis and algorithmic performance comparison
National Aeronautics and Space Administration —
In this paper, a maximum entropy-based general framework for probabilistic fatigue damage prognosis is investigated. The proposed methodology is based on an... -
Federal
Sparse Inverse Gaussian Process Regression with Application to Climate Network Discovery
National Aeronautics and Space Administration —
Regression problems on massive data sets are ubiquitous in many application domains including the Internet, earth and space sciences, and finances. Gaussian Process... -
Federal
Towards Prognostics of Power MOSFETs: Accelerated Aging and Precursors of Failure
National Aeronautics and Space Administration —
This paper presents research results dealing with power MOSFETs (metal oxide semiconductor field effect tran- sistor) within the prognostics and health management of... -
Federal
Precursor Parameter Identification for Insulated Gate Bipolar Transistor (IGBT) Prognostics
National Aeronautics and Space Administration —
Precursor parameters have been identified to enable development of a prognostic approach for insulated gate bipolar transistors (IGBT). The IGBT were subjected to... -
Federal
On Applying the Prognostic Performance Metrics
National Aeronautics and Space Administration —
Prognostics performance evaluation has gained significant attention in the past few years. *As prognostics technology matures and more sophisticated methods for... -
Federal
Block-GP: Scalable Gaussian Process Regression for Multimodal Data
National Aeronautics and Space Administration —
Regression problems on massive data sets are ubiquitous in many application domains including the Internet, earth and space sciences, and finances. In many cases,... -
Federal
HIRENASD Beam FEM
National Aeronautics and Space Administration —
This contains attempts to create BEAM FEM model. I have started a Blog to discuss this... please put your comments there and I will attempt to keep everything... -
Federal
Battery Health Management System for Electric UAVs
National Aeronautics and Space Administration —
In summary, this paper lays out a novel battery health management technique for application onboard an electric UAV. This technique is also applicable to other... -
Federal
A Framework for Systematic Benchmarking of Monitoring and Diagnostic Systems
National Aeronautics and Space Administration —
In this paper, we present an architecture and a formal framework to be used for systematic benchmarking of monitoring and diagnostic systems and for producing... -
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
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
Theoretically Optimal Distributed Anomaly Detection
National Aeronautics and Space Administration —
A novel general framework for distributed anomaly detection with theoretical performance guarantees is proposed. Our algorithmic approach combines existing anomaly... -
Federal
ASIAS Symposium Presentations
National Aeronautics and Space Administration —
Aviation Safety Information Analysis and Sharing (ASIAS) Symposiusm Presentations: July 27-28, 2009 -
Federal
Precursor Parameter Identification for IGBT Prognostics
National Aeronautics and Space Administration —
Precursor parameters have been identified to enable development of a prognostic approach for insulated gate bipolar transistors (IGBT). The IGBT were subjected to... -
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
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...