THREE-DIMENTIONAL SIX DEGREE-OF-FREEDOM VIBRATION TABLE DEVICE FOR CENTRIFUGAL FORCE LOADING DEVICE

摘要

PROBLEM TO BE SOLVED: To provide a three-dimentional six degree-of-freedom vibration table device for a centrifugal force loading device, which can reproduce the behavior of an earthquake with excellent similarity and which can achieve reduction in size and saving of space.;SOLUTION: A three-dimentional six degree-of-freedom vibration table device for a centrifugal force loading device replicates the behavior of the ground and a structure during an earthquake by using a miniature model, and is installed in the centrifugal force loading device. The vibration table device for a centrifugal force loading device, includes: a second base plate 12 (vibration table) on which a miniature model M is mounted; and six hydraulic cylinders 13a to 13f (actuators) which are provided on the lower side of the second base plate 12 and which vibrate the second base plate 12 at six degrees of freedom. The six actuators are provided in such a manner that their shaft cores are positioned on each side of a regular hexagon when viewed in a Z-axis direction. An air spring 21 capable of supporting the second base plate 12 is provided inside the six actuators and between a first base plate 11 and the second base plate 12.;SELECTED DRAWING: Figure 3;COPYRIGHT: (C)2017,JPO&INPIT