Vibration test system and method for structures

Details Vibration test system and method for structures Vibration test system and method for structures

2006-10-03

2006-10-03

Williams, Hezron (Department: 2856)

Measuring and testing

Vibration

Sensing apparatus

C073S664000, C702S033000

Reexamination Certificate

active

07114394

ABSTRACT:
A vibration test system for structures comprises a vibration exciter that vibrates a real model portion, a load meter that measures a load, and a computer that receives a numerical model representing a numerical model portion. The computer includes a block that calculates a displacement, which is made in a predetermined time after completion of measurement, according to a load value and an external force value. A signal production block produces a command signal using as a target value the displacement calculated by the displacement calculation block. A step control block controls the displacement calculation block and signal production block so that they will act cyclically. The displacement calculation block uses an αOS method to time integrate a solution of a vibrational equation.

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