Non-uniform beam vibration using Differential Transform Method

International Conference on Advances in Materials and Manufacturing Applications 2016

Shali, S.^1 ; Nagaraja, S.R.^2 ; Jafarali, P.^3

Department of Civil Engineering, Amrita School of Engineering, Amrita Vishwa Vidyapeetham, Amrita University, Bengaluru, India^1

Department of Mechanical Engineering, Amrita School of Engineering, Amrita Vishwa Vidyapeetham, Amrita University, Bengaluru, India^2

Assoct. Research Scientist, Kuwait Institute for Scientific Research, Kuwait^3

关键词: Differential transform;    Differential transform method;    Eigenvalue analysis;    Fundamental frequencies;    Governing equations;    Linear variation;    Non-uniformities;    Vibration characteristics;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/149/1/012158/pdf
DOI  :  10.1088/1757-899X/149/1/012158

来源: IOP

【 摘 要 】

The paper focuses on the vibration characteristics of non-uniform Euler- Bernoulli beam using Differential Transform Method (DTM). DTM is a numerical method to solve differential equations where the governing equations are reduced into a set of polynomials. Non-uniformity is considered corresponding to linear variation in breadth and height of the beam. The effect of taper ratio on the fundamental frequency of tapered beams is also analysed. The method has proved to be accurate, simple and effective for eigenvalue analysis. For the two cases of non-uniform beam analysed, the frequency computed by the method of differential transform is found to be comparable with the previously available results.