Abstract
This paper deals with vibration response of connected cabinets and electronics inside subjected to seismic wave by using the elasto-plastic dampers which is installed between cabinets. We consider the behavior of the adjacent cabinets with the electronics connecting by two elasto-plastic dampers. The cabinets are modelled by the rigid bodies rotating around their lower corners. The electronics in cabinets are modelled as masses moving in the translational direction in the cabinets. The elasto-plastic damper has bilinear hysteretic characteristics and can absorb the energy of the earthquake inputs. We compare the responses by changing lower connecting positions and mass of electronics. When we connect the dampers near the bottom and the top of cabinets, the maximum rocking angle increased. This may be because the moment around the center of rocking motion is small at the bottom, while the moment is too large at the top. When we change the mass of electronics, the maximum rocking angle decreased when the mass of electronics is about 80~155kg. This may be because the moment acting on the cabinets become smaller in that range.
