Test method for dynamic rigidity of automobile body

摘要

PROBLEM TO BE SOLVED: To provide a dynamic rigidity test method of an automobile body correlated to driving stability of a vehicle.SOLUTION: A dynamic rigidity test method of an automobile body using a table 3 with a slide mechanism capable of fixing an automobile body 21 and a vibration device 5 for vibrating the table 3 with the slide mechanism in the direction of a horizontal one axis with a predetermined acceleration pattern, and for suppressing and braking uncontrolled vibration of the table 3 with the slide mechanism includes: a vibration process S1 for vibrating the table 3 with the slide mechanism which has fixed the automobile body 21; a braking process S3 for suppressing and braking uncontrolled vibration of the table 3 with the slide mechanism due to the vibration of the automobile body 21; an input energy amount measurement process S5 for measuring input energy amounts input to the vibration device 5 in a predetermined interval of the vibration process S1 and the braking process S3; and an evaluation process S7 for evaluating dynamic rigidity of the automobile body 21 by the measured input energy amounts.SELECTED DRAWING: Figure 1