On the structural updating using operational responses of a realistic wing model: The ribes test article

The assessing of the numerical model of a structure to improve its design is of great importance. When referring to the aircraft dynamic properties, a high accuracy numerical model could be achieved if the modal parameters are compared with those characterizing the flying vehicle. In this paper, the updating of the finite element model of a realistic wing model is carried out using the dynamic properties estimated from the analysis of the structure output responses. The experimental modal parameters are used as target characteristics in the structural updating process. The finite element dynamic representation of the wing model, designed and manufactured in order to replicate a typical metallic wing box structure, has been improved by tuning the most sensitive structural parameters.