NATURAL FREQUENCY ANALYSIS OF LAYERED FUNCTIONALLY GRADED BEAMS

Anadolu University Journal of Science and Technology. A : Applied Sciences and Engineering

卷:19

Dr. SavaşEvran¹ 

[1] Çanakkale Teknik Bilimler Meslek Yüksekokulu;

关键词: Functionally Graded Materials;    Natural Frequency;    Beam;    Finite Element Method;   

DOI  :  10.18038/aubtda.345541

来源: DOAJ

【 摘 要 】

In this numerical study, natural frequency analysis oflayered functionally graded beams in the thickness direction under clamped-freeboundary condition was investigated using finite element program ANSYS. Thelayer arrangements were performed according to Taguchi L9 (3*3) orthogonalarray. Mechanical properties of the layers made of different volume fractionsof Ti-6Al-4V and ZrO2 materials was assumed as control factors. In order todetermine the optimum layers and their levels, signal-to-noise (S/N) analysisis used. Significant layers and their percent contributions on the naturalfrequency are carried out using Analysis of Variance (ANOVA). In addition, theeffects of the boundary conditions (B.C.) such as clamped-free (C-F) andclamped-clamped (C-C) and positions of the optimum layers were evaluated.According to results evaluated, maximum natural frequency for first mode werefound to be top and bottom layers with metal-rich and middle layer withceramic-rich. The most effective layers on the responses was obtained as Layer1with 48.45%, Layer2 with 16.16% and Layer3 with 34.98%. Layer arrangements playimportant role on the natural first mode frequency.

【 授权许可】

Unknown