04.2 - Structural Analysis and Design, Structural Dynamics, Aeroelasticity
STRAIN GAGES FULL BRIDGE INSIDE COMPOSITE LAYERS TARGETING WING SHAPE FEEDBACK FOR FLIGHT CONTROL LAWS
A.A. Verri¹, J. Barros¹, F.L.S. Bussamra², F.J. Silvestre², F.J.O. Moreira¹, A.B. Guimarćes Neto², C.E.S. Cesnik, UniMich, United States; J.S. Martins²; ¹Embraer S/A, Brazil ;²ITA, Brazil
This article presents the development of a real-time flight geometry measurement in the X-HALE aircraft. It uses the well-known full bridge strain gages in a different manufacturing possibility: inside composite layers before resin cure. Manufacturing process of a composite bar prototype very similar to the wing-box designed for the X-HALE is presented. The bar is built up with embedded strain-gages, and is submitted to a four points structural test in order to validate the measurements and access any influence of the resin cure manufacturing process. Similar manufacturing process was applied to X-HALE aircraft disclosing a composite validated built-in hardware for real-time flight load and flight geometry measurements.