Harmonic Analysis of Mild steel plate

Abstract

Metallic plates are used in structural work and therefore it is necessary to analyze plate vibrations. Measurement of vibration analysis is important in preventive maintenance in many process to avoid failure of structural elements due to vibrations. Fundamental frequency is one of the important characteristic of material. These frequencies are used to determine material properties. This paper presents harmonic analysis of metallic by ball falling with different height. Vibration caused by impact is detected by a piezoelectric acceleration sensor. A spectral analysis of the detected vibration signal is performed using the Matlab platform and the fundamental frequency plate is estimated. It is observed that fundamental frequency remains nearly constant. Compare fundamental frequency estimated by impact testing with ANSYS software. It is observed average estimated fundamental frequency error is 4.152%.