Superelement representation of a model with frequency dependent properties
نویسنده
چکیده
The paper analyses problems linked to the prediction of the frequency response of a truss composed of tubes filled with a sand assumed to have frequency dependent properties. The full order model being too large for its solution to be affordable, it is proposed to use superelements parametrized in terms of tube length and frequency dependent complex modulus of the sand. Problems addressed in the paper include numerical representation of the parametrized model, superelement interface reduction, reduction of a parametrized model, verification of the reduced model validity, and prediction of the damped frequency response for a tube and a truss.
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