The Prognostics Model Library is a modeling framework focused on defining and building models for prognostics (computation of remaining useful life) of engineering systems, and provides a set of prognostics models for select components developed within this framework, suitable for use in prognostics applications for these components. The library currently includes models for valves, pumps, and batteries. The Prognostics Model Library is implemented in MATLAB. The implementation consists of a set of utilities for defining a model (specifying variables, parameters, and equations), simulating the model, and embedding it within common model-based prognostics algorithms. A user can use existing models within the library or construct new models with the provided framework.
Publications making use of software products obtained from this repository are requested to acknowledge the assistance received by using this repository. Please cite: "M. Daigle; Prognostics Model Library [Computer software]. (2016). Retrieved from https://github.com/nasa/PrognosticsModelLibrary".
Installation can be done in one of two ways. Either (1) use the MATLAB toolbox installer provided in the install folder, which will install the toolbox in your local toolboxes folder and add the folder to your MATLAB path, or (2) copy the source from the MATLAB folder to any desired directory, and add that directory to your MATLAB path. Do not add the subdirectories (the package directories) to your MATLAB path. If the first option is used, then the MATLAB add-on manager can be used to uninstall the package; otherwise, the installation can be removed manually by removing the directory from your MATLAB path and deleting the source.
Instructions for using the software can be found in the following sources:
The PrognosticsModelLibrary has been tested with Matlab R2016a, but should work with older versions, down to at least R2012a.
All contributions are welcome. Issues may be opened using GitHub. To contribute directly, open a pull request against the "develop" branch. Pull requests will be evaluated and integrated into the next official release.
This software is released under the NASA Open Source Agreement Version 1.3.
Copyright © 2016 United States Government as represented by the Administrator of the National Aeronautics and Space Administration. No copyright is claimed in the United States under Title 17, U.S. Code. All Other Rights Reserved.
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