mdof

<hr> <br> <div> <img align="left" src="https://raw.githubusercontent.com/chrystalchern/mdof/master/docs/_static/images/logos/mdof_readmefig.svg" width="250px" alt="mdof logo">

Fast and friendly system identification for structures.

Documentation

<div style="align:center">

</div> </div> <br> <hr>

The mdof package solves inverse problems. It is tailored for the identification of system properties from structural vibrations.

Modal identification:

periods, modeshapes = modes(input_motion, output_motion, dt)

<!-- Output-only modal identification: ```python periods, modeshapes = modes(output_motion, dt) ``` -->

State space system identification:

A,B,C,D = sysid(input_motion, output_motion)

Response reconstruction:

output = reconstruct(realization, dt, input_motion)

<!-- Inverse eigenanalysis: ```python eigvecs, eigvals = eigid(input_motion, output_motion) ``` -->

Create beautiful visuals for historical modal property documentation with integration of the osmg and opensees packages.

<table align="center"> <tr> <td> <img src="https://raw.githubusercontent.com/chrystalchern/mdof/master/docs/_static/images/gallery/LA_modes_core.png" width="225px" alt="historical mode shape documentation"> </td> <td> <img src="https://raw.githubusercontent.com/chrystalchern/mdof/master/docs/_static/images/gallery/LA_FDD_02.png" width="650px" alt="historical spectral density documentation"> </td> </tr> </table>

Getting Started

• Documentation
• Examples:
  • JupyterLab on DataHub (UC Berkeley users)
  • (non-UC Berkeley users)

---

Support

<table align="center"> <tr> <td> <a href="https://github.com/stairlab"> STAIRlab (STructural Artificial Intelligence Research Lab) </a> </td> <td> <a href="https://peer.berkeley.edu"> PEER (Pacific Earthquake Engineering Research Center) </a> </td> <td> <a href="https://dot.ca.gov/"> Caltrans (California Department of Transportation) </a> </td> <td> <a href="https://peer.berkeley.edu"> BRACE2 (Bridge Rapid Assessment Center for Extreme Events) </a> </td> <td> <a href="https://www.nsfgrfp.org/"> NSF (National Science Foundation) GRFP (Graduate Research Fellowship Program) </a> </td> </tr> <tr> <td align="center"> <a href="https://github.com/stairlab"> <img src="https://raw.githubusercontent.com/chrystalchern/mdof/master/docs/_static/images/logos/stairlab.svg" alt="PEER Logo" height="120px"/> </a> </td> <td align="center"> <a href="https://peer.berkeley.edu"> <img src="https://raw.githubusercontent.com/chrystalchern/mdof/master/docs/assets/PEER_logo_old.svg" alt="PEER Logo" height="120px"/> </a> </td> <td align="center"> <a href="https://dot.ca.gov/"> <img src="https://raw.githubusercontent.com/claudioperez/sdof/master/docs/assets/Caltrans.svg.png" alt="Caltrans Logo" height="120px"/> </a> </td> <td align="center"> <a href="https://peer.berkeley.edu"> <img src="https://raw.githubusercontent.com/claudioperez/sdof/master/docs/assets/brace2_logo-new3_ungrouped.svg" alt="BRACE2 Logo" height="120px"/> </a> </td> <td align="center"> <a href="https://www.nsfgrfp.org/"> <img src="https://raw.githubusercontent.com/chrystalchern/mdof/master/docs/_static/images/logos/nsf_logo.jpg" alt="NSF Logo" height="120px"/> </a> </td> </tr> </table>