Free vibration Analysis of Sandwich Plates with cutout

International Conference on Advances in Materials and Manufacturing Applications 2016

Mishra, N.^1 ; Basa, B.^2 ; Sarangi, S.K.^1

Department of Mechanical Engineering, Siksha 'o' Anusandhan University, Bhubaneswar, India^1

Department of Civil Engineering, Siksha 'o' Anusandhan University, Bhubaneswar, India^2

关键词: Dynamic characteristics;    Free vibration characteristic;    Free-vibration analysis;    Moderately thick;    Parametric variation;    Sandwich plates;    Six degrees of freedom;    Structural applications;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/149/1/012149/pdf
DOI  :  10.1088/1757-899X/149/1/012149

来源: IOP

【 摘 要 】

This paper presents the free vibration analysis of sandwich plates with cutouts. Cutouts are inevitable in structural applications and the presence of these cutouts in the structures greatly influences their dynamic characteristics. A finite element model has been developed here using the ANSYS 15.0 software to study the free vibration characteristics of sandwich plates in the presence of cutouts. Shell 281 element, an 8-noded element with six degrees of freedom suited for analyzing thin to moderately thick structures is considered in the development of the model. Block Lanczose method is adopted to extract the mode shapes to obtain the natural frequency corresponding to free vibration of the plate. The effects of parametric variation on the natural frequency of the sandwich plates with cutout are studied and results are presented.