Abstract
We experimentally examined the floor vibration of a car body mock-up with the seated passenger in order to investigate the effect of the human body on the vibration response. As a result, we found that the acceleration peak level of the floor was decreased with increasing the number of the passenger, but the natural frequency of the floor was not changed. Furthermore, we calculated the vibration response of the mock-up with persons which modeled by using a mass, spring and damper. And we found that the calculated results were good agreement with measured.
