Inter-story seismic isolation has become a valuable solution for high-rise buildings to
effectively separate the various parts having several functions, and thus different seismic …

Recently, negative stiffness (NS) has been applied in dynamic vibration absorbers (DVAs) to
achieve better control performance on dynamic responses. However, the adoption of NS …

In this paper, an extended KDamper (EKD) concept is proposed, for implementation as a
seismic base absorber. The complexity of the EKD renders the conventional minmax (H∞) …

One of the most effective approaches for seismic protection of structural systems is isolation.
The majority of existing seismic protection systems are related to horizontal ground motion …

This paper investigates the implementation of supplemental vibration control systems (VCS)
in base isolated (BI) structures, to improve their dynamic performance. More specifically, the …

In this paper, a novel rotational friction negative stiffness damper (RFNSD) composed of
negative stiffness device (NSD) and rotational friction dampers (RFDs) is proposed to …

The principle of influencing oscillation amplitudes of a primary system via secondary
attachments can be enhanced with inclusion of nonlinear mechanisms towards energy …

ABSTRACT A new experimental apparatus for performing impact tests is presented, to
analyse the wave propagation phenomenon in pure sand and in composite sand …

This paper develops a novel low-frequency vibration isolation device based on rigid body
dynamics called a Rigid Elastic Vibration Isolator (REVI). The REVI model is realized by …

The negative stiffness spring and inerter are both characterized by the negative stiffness
effect in the force-displacement relationship, potentially yielding an amplifying mechanism …