Proceedings of the 12th European Conference on Spacecraft Structures, Materials and Environmental Testing
12th European Conference on Spacecraft Structures, Materials and Environmental Testing
du 20 mars 2012 au 23 mars 2012
[en] Nonlinear system identification ; Space structure ; Experimental data
[en] The present paper addresses the experimental identification of a nonlinear space structure, the SmallSat spacecraft developed by EADS-Astrium. The nonlinear component comprises an inertia wheel mounted on a support, the motion of which is constrained by eight elastomer plots and mechanical stops. Robust techniques are applied to measured data to detect, characterise and quantify nonlinear behaviour.