ERROR [2113]: FACTORIZATION FAILED IN EIGEN SOLVER. THIS MAY BE DUE TO EXCESSIVELY CLUSTERED EIGENVALUES

Cause

This error is generated when the shift value is determined between almost duplicated eigenvalues in the process of calculating eigenvalues.  It usually occurs during Sturm Sequence Check of missing eigenvalues.

Analysis Type

Mode-based analysis

Related Menu

Analysis >> Analysis Case >> General >> Eigenvalue >> Analysis Control >> General

Remedy

Set the calculation range to avoid the range in which many eigenvalues exist, or do not perform the Sturm Sequence Check of missing eigenvalues.  Or adjust the number of eigenvalues such that more eigenvalues are calculated than those expected to be duplicated.