Development of Aircraft Spoiler Demonstrators for Cost-Efficient Investigations of SHM Technologies under Quasi-Realistic Loading Conditions

An idealized 1:2 scale demonstrator and a numerical parameter optimization algorithm are proposed to closely reproduce the deformation shape and, thus, spatial strain directions of real aerodynamically loaded civil aircraft spoiler using only four concentrated loads. Cost-efficient experimental studies on demonstrators increasing complexity required transfer knowledge from coupons full-scale structures build up confidence in novel structural health monitoring (SHM) technologies. Especially for testing sensor systems that depend or affected by mechanical strains, e.g., strain-based SHM methods, it is essential considered lab-scale reflect states structure at operational loading conditions. Finite element simulations with detailed models were performed static strength analysis comparison measurements. The simulated measured deformations correlated well results spoiler. Thus, developed demonstrator, can be tested under conditions aerodynamic pressure loads, while test effort costs significantly reduced. Furthermore, presented easily adapted mimic other loads plate-like specific