Detailed Vibration Experiment of a Vehicle as a Medium for Seismic Observation

Abstract

A detailed vibration experiment of a vehicle was conducted to understand the behavior of automobiles to seismic ground motion within wide range of the input level. As a result, followings were revealed: the dynamic characteristics of the vehicle changes with the input level, it is almost flat at 1 to 2 Hz, and the intensity index of the ground motion such as the instrumental seismic intensity can be estimated using the acceleration recorded on the vehicle. In conclusion, feasibility of the seismic observation using the automobiles was suggested.