The practical effects of friction for tuned mass dampers installed in tall buildings

In real-world applications, tuned mass dampers (TMDs) possess friction that must be overcome before they will increase the total effective damping of the structure. The performance of structure-TMD systems with unintended TMD friction is investigated in this study. A nonlinear time domain model is developed, which incorporates the TMD damping due to friction, and also exhibits TMD “lock-out” if the forces of friction are not overcome, a feature …