We demonstrate efficient attenuation of flexural vibrations by attaching a simple inertial amplification (IA) mechanism to a slender elastic beam. The mechanism generates enhanced inertial forces between two attachment points, which effectively counteracts the elastic forces in the beam for certain anti-resonance frequencies. These anti-resonances may be generated in the low-frequency range, even for a small added mass. Furthermore, the hybrid structures are shown to exhibit two neighbouring anti-resonance dips providing wide and deep attenuation regions in the frequency domain. The obtained numerical results are validated with the experimental data.
- Inertial amplification mechanism
- Bending vibrations
- Vibration attenuation
Barys, M., Jensen, J. S., & Frandsen, N. M. M. (2018). Efficient attenuation of beam vibrations by inertial amplification. European Journal of Mechanics A - Solids, 71, 245-257. https://doi.org/10.1016/j.euromechsol.2018.04.001