This work presents a shape sensing method capable of handling some geometrical complexities commonly observed in aerospace structures. The method presented is based on the one-dimensional inverse Finite Element Method (1D-iFEM), which is capable of accurately reconstructing structural displacements of beam structures using surface strain measurements. The effects of cross-sectional variation in shear strains due to transverse or torsional loads for any general beam profile is accounted for in this 1D-iFEM formulation. The introduction of these effects allows the use of iFEM for the shape sensing of solid or thin-walled prismatic beams with any general beam profile. The performance of the new method is demonstrated through some example problems of prismatic beams under various static loading scenarios.

A shape sensing methodology for beams with generic cross-sections: Application to airfoil beams / Roy, R.; Gherlone, M.; Surace, C.. - In: AEROSPACE SCIENCE AND TECHNOLOGY. - ISSN 1270-9638. - STAMPA. - 110:(2021), pp. 1-10. [10.1016/j.ast.2020.106484]

A shape sensing methodology for beams with generic cross-sections: Application to airfoil beams

Roy R.;Gherlone M.;Surace C.
2021

Abstract

This work presents a shape sensing method capable of handling some geometrical complexities commonly observed in aerospace structures. The method presented is based on the one-dimensional inverse Finite Element Method (1D-iFEM), which is capable of accurately reconstructing structural displacements of beam structures using surface strain measurements. The effects of cross-sectional variation in shear strains due to transverse or torsional loads for any general beam profile is accounted for in this 1D-iFEM formulation. The introduction of these effects allows the use of iFEM for the shape sensing of solid or thin-walled prismatic beams with any general beam profile. The performance of the new method is demonstrated through some example problems of prismatic beams under various static loading scenarios.
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11583/2869407