save_linear_buckling_data

opstool.post.save_linear_buckling_data(kmat, kgeo, n_modes=1, odb_tag=1)[source]

Save linear buckling analysis data. Added in v0.1.15.

Note

  • Currently you must use the matrix returned by opstool.pre.get_mck() to input kmat and kgeo.

  • Currently scipy.sparse.linalg.eigsh is used to solve the eigenvalue analysis for symmetric systems, which is more efficient for large models.

  • Currently scipy.linalg.eig is called to solve the eigenvalue analysis for non-symmetric systems, which can be slow for models with large degrees of freedom.

Parameters

kmatxr.DataArray

Material stiffness matrix.

kgeoxr.DataArray

Geometric stiffness matrix.

n_modesint, optional

Number of modes to return, by default 1

odb_tag: Union[str, int], default = 1

Output database tag, the data will be saved in LinearBucklingData-{odb_tag}.nc.