Tuned Mass Dampers (TMDs) can represent an attracting solution to mitigate vibrations of a structure under seismic excitation, but their effectiveness be considerably altered by the dynamic interaction with foundation soil. The available design criteria for TMDs do not account these effects and therefore lead non-optimised structural performance. In this paper investigation on TMD whole soil-st...

The tuned liquid column damper (TLCD) having a uniform cross-sectional tube of U-shaped, occupied with liquid is used as a vibrational response mitigation device. The tuned liquid column ball damper (TLCBD) is a modified TLCD, where, an immovable orifice, positioned at the middle part of the horizontal portion, is replaced by a metal ball. Different studies on the unconstrained optimization per...

This paper concerns the numerical performance evaluation of multi-degree-of-freedom systems equipped with Tuned Mass Dampers-Inerter (TMDIs); a passive control device used for mitigation mechanical vibrations induced by dynamic loads. The inerter is commonly to increase apparent mass classics tuned dampers (TMDs), improving its seismic performance. To evaluate TMDI action, three case studies ar...

The behaviour of a p-xylene-based lyophobic nanoporous carbon system under high hydrostatic pressures is investigated. As the pressure is increased to a critical value, the nanopore surfaces between graphene layers are exposed to the liquid phase, leading to a considerable increase in solid–liquid interfacial energy. During unloading, defiltration does not occur until the pressure is much lower...

Innovative magnetorheological dampers (MR dampers) for shock and vibration damping, based on magnetorheological fluids (MRFs), are described. Important fields of their application are loading processes, impact dampers in security systems as well as vibration dampers for machines and cars. Various models for describing the MR dampers are discussed. The characteristic feature of the MR dampers is...

In this paper, the effect of viscous dampers (VD) on control adjacent structures is firstly discussed, and then tuned inerter (TID) utilized to enhance performance structures. The relative displacement absolute acceleration responses TID controlled are optimized evaluated by H∞ transfer functions. results show that there an optimal damping ratio minimize response structure when VD used, but req...

We present a probabilistic methodology for designing tuned mass dampers for flutter suppression in long-span bridges. The procedure is computationally efficient and computes the probability of flutter occurrence based on a modified first-order method of reliability analysis, a reduced-order representation of the structure and a time domain formulation of aeroelastic loads. Results of a parametr...

A series of wind tunnel model tests and theoretical analyses were conducted to investigate torsion excitation, response and vibration suppression of wind-excited buildings. An aeroelastic model for pure torsion vibration was developed and the aeroelastic test results were compared with those obtained by other Wind tunnel test techniques. The comparison and practice indicated that this type of m...