EKSENEL TABAKALI FONKSİYONEL DERECELENDİRİLMİŞ KONİK KİRİŞLERİN SAYISAL İLK MOD FREKANS ANALİZİ

Authors : Savaş EVRAN

Pages : 399-406

Doi:10.28948/ngumuh.387248

View : 15 | Download : 14

Publication Date : 2018-01-31

Article Type : Research Paper

Abstract :    The purpose of this numerical work is to evaluate the first mode frequency analysis of the tapered beams with three layers, modelled using functionally graded materials insert ignore into journalissuearticles values(FGM); in the axially direction, under clamped-clamped insert ignore into journalissuearticles values(C-C); boundary condition based on finite element software named ANSYS V13. Analyses were conducted using L16 Taguchi orthogonal array design consisting of three control factors and four levels. The layers were determined as the control factors and were considered to be made from aluminum insert ignore into journalissuearticles values(Al);/monotungsten carbide insert ignore into journalissuearticles values(WC); systems. The optimum layer combination was carried out according to the analysis of signal-to-noise insert ignore into journalissuearticles values(S/N); ratio. The importance levels and contribution ratios of the layers on the first mode frequency of the axially layered FG tapered beams were observed by using analysis of variance insert ignore into journalissuearticles values(ANOVA);. Layer 1 and Layer 3 have positive effects on the first mode frequency values. However, Layer 2 has negative influence. In addition, the most effective layers are Layer 1 with 82.17%, Layer 2 with 16.36% and Layer 3 with 1.45% respectively. 
Keywords : Functionally graded materials, tapered layered beam, finite element method