VIBRATION CHARACTERISTICS OF NONUNIFORM BLADES MADE OF FUNCTIONALLY GRADED MATERIAL

Authors : Burak KILIÇ, Selim ŞAHİN, Özge ÖZDEMİR

Pages : 99-117

Doi:10.18038/estubtda.766590

View : 18 | Download : 10

Publication Date : 2021-03-26

Article Type : Research Paper

Abstract :The purpose of this study is to examine the vibration characteristics of a rotating blade whose material distribution varies in the spanwise direction. Formulations for functionally graded materials and beam structural models are carried out in detail and the results are displayed in several figures and tables which is a significant source of information for the authors working in this area. Different parameters such as angular speed, radius of the hub, material properties, power law index parameter, boundary conditions and slenderness ratio are considered in the formulation. Finite Element Method where the element matrices are obtained from potential and kinetic energy expressions is applied as the solution procedure. The calculated results are demonstrated in various tables and figures where it is observed that there is a good agreement with literature.
Keywords : Functionally Graded, Helicopter Blade, Finite Element Analysis, Structural Vibration,