Vibration Test of TMD with Initial Displacement under Impulse Loading

We propose TMDs with initial displacement to effectively control transient responses. The initial displacement of a TMD can change the phases of beat envelope curves resulting from superposition of two vibration modes with closely spaced natural frequencies. In this paper, we describe a vibration test under impulse loading to verify the effect of the proposed system experimentally and show that an experimental model of the TMD with initial displacement works. Firstly, we study analytically the effect of vibration control using the proposed method with a plate model. Then, we explain the experimental results. Finally, we compare the experimental results with the analytical results.