Abstract
Tapered beams are more effective than uniform beams because they offer a superior distribution of mass and strength and also satisfy unique functional requirements in many engineering applications. This study calculates the mode shapes and natural frequencies of straight and various tapered Euler-Bernoulli beams by finite elements using ANSYS 16.5 software. The dynamic response for a cantilever beam was obtained for different taper angles. The results were compared with the dynamic response of a straight cantilever beam, to show the effect of the taper ratio on the dynamic response of the cantilever beam, when its volume and mass are constant. The results showed that the natural frequencies were increased as the taper angle increases, and the torsional natural frequencies were shifted from the fourth natural frequency to the fifth one as the taper angle increases.
