Modal and harmonic acoustical analysis of a circular rubber membrane and classification of resonant frequencies using deep learning

Abstract

Abstract Mode shapes of a component or a structure can be determined by conducting Modal analysis. Chladni figures can also be used to determine the mode shapes of a plate. In this research comparison of these mode shapes using Chladni figures and ANSYS simulation has been carried out. Analysis systems used for ANSYS simulation are Harmonic Acoustic Analysis and modal analysis. With the help of wave equation, a mathematical formulation has been achieved. The experimental and simulation results are compared, and an error of not more than 9% for modal and 10% for harmonic acoustics is found. Classification of these Chladni figures which are obtained experimentally, using Deep Learning algorithms like Inception ResNetV2, VGG16 and Xception and have achieved 100 percent accuracy at different converging times.