The paper deals with linear systems of differential equationswith
symmetric system matrices M,D, and K.The mass matrix M and the
stiffness matrix K are both assumed to bepositive definite. The
damping matrix D is indefinite. Three questionsare of interest: 1)
When is the system unstable? Apparently not always,if the matrix D
is indefinite. 2) What can we say about conditions whichensure
that an unstable system can be stabilized by adding a
gyroscopicterm Gdx/dt? 3) What is, in this case, a suitable or
optimal matrixG? The questions are answered in the frame of a
first order perturbationapproach.

Conference | GAMM Wissentschafliche Jahrestagung |
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City | Prague |
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Period | 01/01/1996 → … |
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