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Effect of Electrostatic Discharge on Electrical Characteristics of Discrete...
This article reports on preliminary results of a study conducted to examine how temporary electrical overstress seed fault conditions in discrete power electronic components... -
First International Diagnosis Competition – DXC’09
A framework to compare and evaluate diagnosis algorithms (DAs) has been created jointly by NASA Ames Research Center and PARC. In this paper, we present the first concrete... -
Intelligent Systems
The autonomous systems (AS) project, led by NASA Ames, is developing software for system operation automation. AS technology will help astronauts make more decisions without the... -
Temperature Stratification in a Cryogenic Fuel Tank
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... -
Experimental and Analytical Development of a Health Management System for...
Expanded deployment of Electro-Mechanical Actuators (EMAs) in critical applications has created much interest in EMA Prognostic Health Management (PHM), a key enabling... -
Distributed Real-time Embedded Analysis Method (DREAM)
Models developed with this Open Source tool. -
Flight tracks, Northern California TRACON
This dataset contains the records of all the flights in the Northern California TRACON. The data was provided by the aircraft noise abatement officeFlight Data For Tail 675
The following zip files contain individual flight recorded data in Matlab file format. There are 186 parameters each with a data structure that contains the following: -sensor...HIRENASD Comparisons of FEM modal frequencies and modeshapes
Below are frequency comparisons of different models with experiment Note Modeshapes aren't very descriptive for higher modes. There is coupling between them so this is just an...RSW Fully Tet Coarse Mesh
This is the fully tetra coarse mesh for the RSW based on gridding guidelines.HIRENASD coarse structured grid
blockstructured hexahedral grid, 6.7 mio elements, 24 degree minimum grid angle, CGNS format version 2.4, double precision Binary, Plot3D file Please contact Thorsten Hansen for...Evaluating Prognostics Performance for Algorithms Incorporating Uncertainty Estimates
Uncertainty Representation and Management (URM) are an integral part of the prognostic system development.1As capabilities of prediction algorithms evolve, research in...CIDU Presentations
CIDU PresentationsReporting Sample
not availableHIRENASD Experimental Data, Magnitude & Phase of Oscillatory Cp/displacement
OUTDATED information. This data was replaced April 2012. The originally posted HIRENASD reduced data contained numerous errors. Tecplot (ascii) and matlab files of the frequency...Towards A Model-based Prognostics Methodology for Electrolytic Capacitors: A...
A remaining useful life prediction methodology for elec- trolytic capacitors is presented. This methodology adopts a Kalman filter approach in conjunction with an empirical...OMAD 2014 Workshop Proceedings
not availableDynamical Model of Rocket Propellant Loading with Liquid Hydrogen
A dynamical model describing the multi-stage process of rocket propellant loading has been developed. It accounts for both the nominal and faulty regimes of cryogenic fuel...An Integrated Model-Based Diagnostic and Prognostic Framework
Systems health monitoring is essential in guar- anteeing the safe, efficient, and correct opera- tion of complex engineered systems. Diagnosis, which consists of detection,...Virtual Sensors: Efficiently Estimating Missing Spectra
Various instruments are used to create images of the Earth and other objects in the universe in a diverse set of wavelength bands with the aim of understanding natural...