Model updating methodologies for multibody simulation models: application to a full-scale wind turbine model
In the industrial environment, the request for accurate models able to predict the behavior of a structure in different operating conditions is continuously increasing. To analyze the dynamic performances of complex mechanisms, multibody models are widely used, in particular if control laws for these systems need to be defined and tested. Wind turbines represent a typical application in which multibody models are used for control laws development. In this paper, an Experimental Modal Analysis campaign on the CART-3 wind turbine is used as reference to update a tailored multibody model. Standard model updating techniques based on mode shapes and natural frequencies are adapted to be used in a professional CAE environment. The results obtained show a big influence of the correlation indices selected to drive the updating phase.
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