genericROM.Containers.OperatorCompressionData.OperatorPreCompressionDataMechanical module

class OperatorPreCompressionDataMechanical(solutionName, gradPhiAtIntegPoint, integrationWeights, listOfTags)[source]

Bases: OperatorCompressionDataBase

Class containing an OperatorPreCompressionDataMechanical, used in a precomputation of the operator compression step of the POD-ECM method. The implementation uses Lagrange isoparametric finite elements as high-dimension integration model. This structure only depends on the mesh, and is computed once in nongeometrical varitions cases, even when snapshots are updated.

gradPhiAtIntegPoint

of length dimensionality of the mesh, of scipy.sparse.coo_matrix of size (numberOfIntegrationPoints, numberOfModes), components of the gradient of the shape functions at the integration points

Type:: list

integrationWeights

of size (numberOfIntegrationPoints,), vector containing the integration weights associated to the computation of the internal forces vector with the high-fidelity integration scheme

Type:: 1D np.ndarray

listOfTags

(of length numberOfIntegrationPoints) at each integration point, containing all the tags of the element containing the integration points

Type:: list of lists (of str)

GetGradPhiAtIntegPoint()[source]

Get the gradPhiAtIntegPoint attribute

Returns:: of length dimensionality of the mesh, of scipy.sparse.coo_matrix of size (numberOfIntegrationPoints, numberOfModes)
Return type:: list

GetIntegrationWeights()[source]

Get the integrationWeights attribute

Returns:: of size (numberOfIntegrationPoints,)
Return type:: 1D np.ndarray

GetListOfTags()[source]

Get the listOfTags attribute

Returns:: (of length numberOfIntegrationPoints)
Return type:: list of lists (of str)

GetNumberOfIntegrationPoints()[source]

Get the number of integration points

Returns:: number of integration points
Return type:: int