b'Engineer Innovation | AerospaceFigure 7: Spectrum verification for 0.1-g base level test using harmonic filtered with Simcenter TestlabFigure 8: Control and notching channel in time domainstability of the control. Neverthelesscreated and fully integrated in the these non-linearities must be modeledSimcenter Samcef solver in order to in the simulation model if we want tonumerically predict the experimental extend the concept of virtual testing,behavior of tests. This implementation even in the case of non-linear behaviorwas validated for an academic case of structure. (clamped / free beam) and for an industrial case (Galileo satellite). In the Conclusion industrial case, we saw that a linear The purpose of the virtual shakerapproach is not enough to predict the approach is to foresee testingbehavior of the experimental test. In difficulties prior to the actual test bythe context of virtual testing, we saw modeling faithfully in a virtualthat the non-linearities can completely environment the testing hardware andchange the stability of the control. In the structure under test. For this reason,this scope, we showed how non-a dynamically linked library (dll) oflinearities can be taken into account in Simcenter Testlab sine control wasa virtual testing context and how important it is to identify and quantify the non-linearities before starting the virtual testing.References:[1]F. DAmbrosio, A. Carrella, G.Patanchon: An Integrated Approach for Virtual Testing: Finite Element Methods with embedded sine control for prediction of base-excitation tests in the space industry, NAFEMS 2017 Conference, Stockholm, Sweden[2]F. DAmbrosio, S. Hoffait, A.Carrella, G. Patanchon: Integrated Solution for Virtual Testing. ECCSMET 2018, ESA Conference, Figure 9: 0.1-g base level test, FFT over [163, 165] s of the notching channel Noordwjik, The Netherlands n60'