Tom Eppes, professor of electrical and computer engineering; Ivana Milanovic, professor of mechanical engineering; and Shiraz Malik, graduate student in the College of Engineering, Technology, and Architecture (CETA), presented a paper at the June 2013 Multidisciplinary Conference sponsored by the International Journal of Arts & Sciences in Bad Hofgastein, Austria.
The conference brings together international academics to present
research in the fields of social sciences, humanities, education and
The paper, "Vibrational Response of a Gong," presents
the results of a three-dimensional finite element analysis of the
eigenmodes of an Indonesian gong suspended in air. A model was developed
using COMSOL Multiphysics 4.3a to identify discrete vibrational modes,
known as eigenfrequencies, which constitute the set of amplitude
response patterns produced when the gong is abruptly struck by an
external force. These frequencies are driven by the physical geometry
and material composition of the gong and suspension system. Contour
plots of the complex surface deformations as a function of time are
examined along with acoustic wave propagation into the surrounding air.