Abstract. Strong seismic excitations can induce considerable displacements in base-isolated structures. These may turn cause damage to the isolation system or impacts against adjacent structures event of an insufficient gap. A strategy reducing be achieved through interposition, between isolated structure and structures, deformable dissipative devices, called bumpers. In this paper, response si...

The concept and theory of base isolation system are widely accepted at the present. To accomplish the predicted behaviours of the base-isolated buildings, the design for base isolation system is regarded as the dominant factor of the success of isolated buildings. Although the base isolation design can be fulfilled using Uniform Building Code 1997, conceptual design is yet necessarily analyzing...

Double, Rydberg, and charge transfer (CT) excitations have been great challenges for time-dependent density functional theory (TDDFT). Starting from an (N ± 2)-electron single-determinant reference, we investigate excitations for the N-electron system through the pairing matrix fluctuation, which contains information on two-electron addition/removal processes. We adopt the particle-particle ran...

This paper studies the dynamics and control of the Gough–Stewart platform for vibration control of a flexible supporting structure. The problem arises from a large radio telescope in which the astronomical equipment is mounted on a platform to be stabilized by a Gough–Stewart platform, while the base platform of the mechanism itself is carried by a vibrating cable-car that moves along flexible ...

We develop a quantum kinetic theory of the chiral condensate and meson quasiparticle excitations using the O(N) linear sigma model which describe the chiral phase transition both in and out of equilibrium in a unified way. A mean field approximation is formulated in the presence of mesonic quasi-particle excitations which are described by generalized Wigner functions. It is shown that in equili...

The present study is the first to analyze the dynamic response of a poroelastic beam subjected to a moving force. Moreover, the influences of attached mass-spring systems and non-ideal supports (with local movements in the supporting points or base due to the presence of factors such as gaps, unbalanced masses, and friction or seismic excitations) on the responses were investigated. Non-ideal s...

Dislocations and disclinations in a lattice of Josephson junctions will affect the dynamics of vortex excitations within the array. These defects effectively distort the space in which the excitations move and interact. We calculate the interaction energy between such defects and excitations, determine vortex trajectories in twisted lattices, and discuss the consequences for experiment. Typeset...