Vibration characteristics of stepped beams made of FGM using differential transformation method

被引：27
|
作者：
Wattanasakulpong, Nuttawit [1 ]
Charoensuk, Jarruwat [2 ]
机构：
[1] Mahanakorn Univ Technol, Dept Mech Engn, Bangkok 10530, Thailand
[2] King Mongkuts Inst Technol Ladkrabang, Dept Mech Engn, Bangkok 10530, Thailand
来源：
MECCANICA | 2015年 / 50卷 / 04期
关键词：
Vibration; Stepped beam; Functionally graded material; DTM; FUNCTIONALLY GRADED BEAMS; COMPOSITE TIMOSHENKO BEAM; EULER-BERNOULLI BEAM; EXPERIMENTAL VALIDATION; NONLINEAR VIBRATION; DTM; SECTION; ORDER; MODEL;
D O I：
10.1007/s11012-014-0054-3
中图分类号：
O3 [力学];
学科分类号：
08 ; 0801 ;
摘要：
The present paper is given to investigate free vibration analysis of stepped beams produced from functionally graded materials (FGMs). The differential transformation method is employed to solve the governing differential equations of the beams to obtain their natural frequencies and mode shapes. The power law distribution is used and modified for describing material compositions across the thickness of the stepped beams made of FGM. Two main types of the stepped FGM beams in which their material compositions can be described by the modified power law distribution are selected to investigate the free vibration behaviour. The significant parametric studies such as step ratio, step location, boundary conditions and material volume fraction are also covered in this paper.
引用
收藏
页码：1089 / 1101
页数：13
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