A new study has delved into the energy analysis of structures subjected to seismic ground motions, examining how energy is dissipated through linear absorbers and nonlinear energy sinks (NES). The research focuses on quantifying the energy distribution within the structure-absorber system, providing a more detailed understanding of seismic protection mechanisms. This approach is crucial for optimizing the design of vibration mitigation systems in buildings and other critical infrastructure, where effective dissipation of seismic energy is fundamental to preventing structural damage and ensuring safety.

The work addresses the complexity of damping systems, distinguishing between traditional linear absorbers and NES, which offer more efficient energy dissipation in certain frequency ranges due to their nonlinear behavior. An analytical framework has been developed that allows tracking the energy flow from ground motion to structural components and damping devices. This detailed analysis includes seismic input energy, kinetic energy, elastic potential energy, and, crucially, the energy dissipated by the absorbers, offering a comprehensive view of how energy is managed during a seismic event.

The results of this energy analysis provide important guidelines for the selection and sizing of damping devices. By better understanding how and where energy is dissipated, engineers can design more robust and efficient systems that maximize structural protection with lower cost and complexity. This advance is particularly relevant in areas of high seismic activity, where infrastructure resilience is a priority. The proposed methodology allows for a more precise evaluation of damping system performance, paving the way for future innovations in seismic engineering.