Development and Performance Tests of Deployable Display Stands for Art Objects Viable in Severe Earthquakes

一种新型的陈列架被开发出来，用于保护艺术品和文物在强烈震动中免受地震破坏。可展开(自适应)结构的概念被用于开发，其中考虑了以下三个要求：1)在正常模式下，当感觉到地震时，支架不应阻碍艺术品的欣赏。2)在地震中，即使在剧烈晃动的情况下，也要保护好物体而不造成任何损坏。3)从地震到正常模式的恢复应由外行人轻松操作。通过振动实验和数值模拟验证了该支架的性能。展台配备了一个传感器和一个可展开的防护框，通常折叠在展台下方。当传感器检测到加速度超过60厘米/S/S的震动时，会触发框架立即展开到相关对象周围，防止其倾覆。

A new type of display stands has been developed for protecting art objects and artifacts from earthquake damage during severe shaking. The concept of deployable (adaptive) structures has been used for the development in which the following three requirements were taken into account : 1) In normal mode when earthquakes are felt, the stand should not obstruct appreciation of art objects. 2) During earthquakes, they should protect the objects without any damage even in severe shaking. 3) Recovery from earthquake to normal modes should be easily operated by a layman.Performance of the stand was demonstrated by vibration experiments and numerical simulations. The stand is equipped with a sensor and a deployable guard frame which is usually folded under the display stand. When the sensor detects shaking stronger than 60 cm/s/s in acceleration, the frame is triggered to be instantly deployed around the object concerned and prevent it from overturning.