Missing modes phenomena
Missing modes phenomena
(OP)
Hello,
I am trying hard to find some information about the "missing modes" phenomena resulting from the use of specific preconditionning on stiffness matrices (FEM method).
Basically, I am simplifying my stiffness matrix and this leads to missing modes in the new spectrum.
Would you know any reference linked with this subject ?
Thank you.
Alain
I am trying hard to find some information about the "missing modes" phenomena resulting from the use of specific preconditionning on stiffness matrices (FEM method).
Basically, I am simplifying my stiffness matrix and this leads to missing modes in the new spectrum.
Would you know any reference linked with this subject ?
Thank you.
Alain





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RE: Missing modes phenomena