COMPARATIVE STUDY OF SYSTEM IDENTIFICATION METHODS APPLIED TO AEROELASTIC MODELS TESTED IN WIND TUNNEL

摘要

The use of tests is required when moving into areassparsely explored by theory as an importanttool for its validation. Aeroelastic wind tunneltests using scaled models can be performed in orderto verify the analytical methods, requiring amodel that represents the problem qualitativelyor, in a more complex case, checking the behaviorof a real aircraft, requiring a representativemodel in which tests must necessarily be donedemonstrating, statically and dynamically, theirfidelity to the real structure. In this work, usingpreviously acquired wind tunnel tests experimentaldata, a modal identification routine has beendeveloped to analyse the data. Using theoreticalscaled aircraft models, a theoretical versus experimentcorrelation was performed in order to verifythe quality of the theoretical results.