Study on small seismic isolation table using coil springs
Study on small seismic isolation table using coil springs
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小型螺旋弹簧隔震台的研究
DOI：
10.1299/transjsme.14-00607
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发表时间：
2015
期刊：
影响因子：
--
通讯作者：
K. Ohmata
中科院分区：
文献类型：
--
作者：
T. Matsuoka;T. Takayanagi;Tomonori Niwa;K. Ohmata
本文提出了一种新型的小型螺旋弹簧隔震台，它具有结构简单、水平方向均能隔震的特点。用四个螺旋弹簧将由滚柱轴承支撑的台板几乎垂直地拉向基板。当工作台相对于底板移动时，螺旋弹簧对工作台底板提供水平恢复力和摩擦力。制作了小型隔震试验台，并进行了隔震层的抗力特性测试。数值计算结果从理论上推导，并与实验结果进行了比较。为了验证结构在多个周期地震作用下的隔振效果，利用振动台进行了谐响应试验和地震响应试验。实验和计算结果表明，与不加隔振台相比，加质量后台面的最大响应加速度减小了1/10 ~ 1/12。
In this paper, a new type of small seismic isolation table using coil springs, which has a simple construction and the capability of vibration isolation in every horizontal direction, is proposed. A table board supported with roller bearings is pulled almost vertically toward a base board with four coil springs. The coil springs give horizontal restoring force and friction force to the table board when the table moves relatively to the base board. The trial small seismic isolation table is manufactured, and the resisting force characteristics are measured. The numerical results are derived theoretically and compared with the experimental results. Harmonic response test and seismic response tests are carried out by using a shaking table in order to confirm the effect of vibration isolating under some earthquakes that have several periodic component. The experimental and calculated results show that the maximum response accelerations of the table board with a loaded mass decreased to about 1/10 ~ 1/12 compared to those without the isolation table.
利用控制摩擦减少位移的隔震装置的实验研究（日文）
DOI：
--
发表时间：
2007
期刊：
Trans. of JSME Vol.73, No.734
影响因子：
--
作者：
Shintani;M. Taguchi;N. Hattori. Y
通讯作者：
N. Hattori. Y