Abstract
This paper deals with research of new compact isolation device with reduction of horizontal relative displacement by using friction force and reduction of vertical response acceleration and relative displacement by using spring and friction force. The isolation device is using a friction surface. The friction surface is subjected to acts on the slope plate. The restoring-force of horizontal direction is given to the isolation device from elastic force of a compression spring attached to the base. In the equation of motion of analytical model, the friction force changes in proportion to displacement. The restoring-force is also proportional to displacement. The restoring-force always works in the direction of a center. The restoring-force of the vertical direction is given to the isolation device from compression springs and draft springs. Condition reducing both response acceleration and displacement effectively is calculated on various conditions using the analysis model. Furthermore, an experiment is conducted using the experimental device. The results the experiment are compared with the results of the analysis. The performance of the isolation device is examined.
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