A Vibration Isolation System for Transportation

Air suspension truck has been used for transport many precision machinary. However, the air suspension is not so effective in horizontal direction as in vertical direction. For the seismic vibration, some isolation systems have been developed. But, the effect of these seismic isolation systems is depend on the weight of the load. In this paper, we present a new vibration isolation system making use of a table supported by wire ropes. Foundamental excitation tests and vihicle running tests on an actual road are performed to verify the advantage of this system. The maximum horizontal acceralation of the table is reduced to 0.5G from 1.7G.