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

被引：0
|
作者：
Nuttawit Wattanasakulpong
Jarruwat Charoensuk
机构：
[1] Mahanakorn University of Technology,Department of Mechanical Engineering
[2] King Mongkut’s Institute of Technology Ladkrabang,Department of Mechanical Engineering
来源：
Meccanica | 2015年 / 50卷
关键词：
Vibration; Stepped beam; Functionally graded material; DTM;
D O I：
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中图分类号：
学科分类号：
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.
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页码：1089 / 1101
页数：12
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