Fe Model Adjustment of a Composite Material Car-Body By Means of Experimental Modal Analysis on the Prototype 91A095

A procedure adopted to verify and update the finite elements model of an electric powered car-body manufactured from composite materials is described.
Experimental results, obtained from modal testing of the prototype, are used in order to identify and correct discrepancies in the FE model. The availability of a highly reliable FE model allows to simulate structural modifications by computer, optimizing the use of composites and reducing in the same time at minimum prototypes construction. The approach followed suggests a possible remarkable reduction in product development costs and duration.
The work has been performed within a larger program for the development of thermoplastic composite materials, with particular attention to transportation market.


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