solve complex eigen problem

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solve complex eigen problem

Wang Shiwen
Hello, ABAQUS friends:
  Can I check if ABAQUS can solve complex eigen problems with user defined matrix?
  The equation like this:
  where, [M]: symmetric; [C]: antisymmetric, [K]: nonsymmetric.
  where, all the three matrix should be input into ABAQUS by user defined matrix, Is it possible to use UEL to do the things? Especially for damping matrix, how can I tell ABAQUS it is a unusual matrix, not the combination of [M] and [K].
  thanks all.

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