GEOMETRICALLY NONLINEAR VIBRATION ISOLATION SYSTEM

The geometrically nonlinear isolation system of the present invention includes a bearing platform, an isolator and a damper. The isolator is connected with the bearing platform and used for providingresilience against horizontal relative displacement between the bearing platform and the isolator. The damper is pin-jointed to the bearing platform and has an axis orthogonal or oblique to the horizontal direction. Accordingly, when the bearing platform and the isolator move with respect to each other along the horizontal direction, the angle between the axis of the damper and the horizontal direction would change with the horizontal displacement, and the damper provides damping force along a direction parallel to the axis of the damper so as to enhance horizontal vibration isolation effect. 本发明提供了一种几何非线性隔振系统，其包括一承载台、一隔振器及一阻尼件。该隔振器连接该承载台，用以于承载台与隔振器间产生水平相对位移时提供一恢复力。该阻尼件铰接至该承载台，且阻尼件的轴线与水平方向呈正交或斜交。据此，当该承载台与该隔振器间沿该水平方向产生相对位移时，该阻尼件的该轴线与该水平方向间的夹角会随之改变，且该阻尼件会沿着平行该轴线的方向提供一阻尼力，以提升水平隔振效果。