Investigation of the Nonlinear Dynamics of a Particle-Damped Slender Beam by Experimental Continuation

In the present study, experimental continuation is applied to investigate the dynamic behavior of a slender steel beam with an attached particle damper. The slender beam is excited to vibration amplitudes at which it behaves geometrically nonlinear by which multiple coexisting vibration states are possible. The forced response curves are measured while the excitation force is held harmonic. To this end, the higher harmonic components of the excitation voltage are controlled using a Newton algorithm. In addition the backbone curve is measured and a nonlinear modal damping is identified.