Development of a System for Measuring and Animating Vibrational Characteristics : Visualization of Vibration Mode by Extracting Rotation Components and Animating Experimental Data

Abstract

We can not watch the structural vibration, because the order of vibrational amplitude is much smaller than the structural dimensions and the vibrational velocity is very fast. Then it is necessary to develop the software with which we can watch the structural vibration mode. In addition, if it is possible to watch the mode by using unmeasured points, such software becomes very convenient tool for us. Authors developed such software which is including a new function for the animation of vibration mode. This function is that, the frequency response of unmeasured points are calculated with the rotation vector of a measured point. The rotation vector is estimated by using some experimental data of measured points. In this paper, the validity of this method is verified by the application examples of a beam, a plate and a model ship.