Figures 3 and 4 show the distribution of the maximum response accelerations for each story according to the change in the period of the isolated RC building when ( rho ) = 0.05~( rho ) = 2.0, which are used to examine the isolation effect according to the period difference between the superstructure and the isolation layer of the isolated building.
The test program involves a relatively rigid structure isolated by sliding-type isolators and a fluid viscous damper installed within the isolation layer.
In this study, the isolation effect according to the change in the stiffness ratio between the superstructure and isolation layer was examined by changing the vibration period of the isolated building under the fixed vibration period of the superstructure.
The use of fluid viscous dampers (FVDs) together with isolators, frequent in near-fault buildings, is effective in reducing displacements of the isolation layer.
It may be noted that in three-layered structures, there is no separate immobilization layer and the SU-8 isolation layer itself is immobilized with receptors.
Soft porous materials are usually used to form an isolation layer around the buried structures.
A displacement control design for isolation layers subjected to BDBE shaking, which adopts fluid dampers for controlling the horizontal displacement of isolation layer is developed.
This control input is a function of the relative displacement and velocity at the isolation layer with a constant stiffness quantity and damping coefficient.
We use the DWL to define windows in the top isolation layer of the device, thus, selecting which electrodes, out of a standardised electrode array, should be active.
We have tried to improve the ramp-surface morphology by modifying the film surface morphology (base-YBCO electrode and LSAT isolation layer) and the ion etching conditions.
A U-shaped damper typically has a stable and saturated hysteretic performance along the in-plane direction and is usually installed in the isolation layer.
