鉛の塑性変形を利用した高減衰サポートのエネルギー吸収特性と配管の地震応答特性(機械力学,計測,自動制御)

概要

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In order to reduce the number of conventional support devices for the piping system, such as oil snubbers or mechanical snubbers, consequently to reduce the plant cost, various kinds of high damping supports have been developed. As one of these high damping supports, the authors have developed a rotary type lead extrusion damper, and investigated the energy absorbing characteristics and the seismic response reduction of piping systems through the fundamental tests and large scale 3D piping system tests. In this report, the relationships between the energy absorbing characteristics of a rotary type lead extrusion damper and seismic response reduction of piping systems are summarized and clarified. Furthermore, in the view point of damper functional integrity, the relationships between the accumulated absorbed energy and the piping system seismic response were discussed, and the important items in designing the piping system supported by lead extrusion dampers are summarized.
社団法人日本機械学会の論文
2003-10-25