International Journal of Engineering Research in Electronics and Communication Engineering

Comparative Analysis of Natural Frequencies of Simply Supported Beams

Author : Sathvik Sripad ¹ Siddharth Joshi ² Priya Gupta ³ Simon Jayasingh ⁴

Date of Publication :7th September 2016

Abstract: In recent times, understanding the vibration patterns of structures has become very crucial :courtesy the various types of forces, both static and dynamic coming into play. Modal analysis helps to determine the vibrational characteristics of a structure explicitly during its design process. Behavioral tendencies of structures under time dependant loads can at times be tricky as the exact nature of dynamic loadings is difficult to comprehend. Modal analysis has proven to be helpful in our understanding towards many vibrational phenomena that were encountered in practice. In this work, focus has been laid on one structural entity- the beam. Finite elemental analysis was carried out for the beams using ANSYS WORKBENCH as a platform for the same. Simply supported beams made up of structural steel, Carbon Fiber Reinforced Polymer(CFRP) and Glass Fiber Reinforced Polymer(GFRP) with both fibers aligned at zero degree inclinations were fabricated under ANSYS Workbench platform simulated under modal analysis. Results were duly compared with respect to the natural frequencies and deflections produced in the three types of beams.

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