In this lecture, we will cover the following:

• Adding the OpenSeesPy and opsvis dependencies required for the benchmark model,
• We will regenerate the shell mesh and local coordinate data for the same structure,
• We will prepare restrained node information in a form that can be passed into OpenSeesPy.

We begin by creating the setup for the OpenSeesPy analysis using almost the same structural definition as the previous custom solver notebook. The geometry, mesh parameters, material properties, local coordinate calculations, and restraint logic are deliberately kept consistent. The main new additions are the openseespy import itself and the opsvis visualisation library, which provides a way to inspect the model as OpenSeesPy understands it.

The lecture also highlights a few very small differences in what OpenSeesPy needs. We also prepare the restrained node list so it can be used directly when applying boundary conditions in the OpenSeesPy model. By the end, all the supporting data is ready, but the actual OpenSeesPy model has not yet been built.

Next up

In the next lecture, we will use this prepared setup to create the OpenSeesPy nodes, elements, materials, loads, and analysis commands.