期刊
MECHANICS OF ADVANCED MATERIALS AND STRUCTURES
卷 -, 期 -, 页码 -出版社
TAYLOR & FRANCIS INC
DOI: 10.1080/15376494.2021.1922960
关键词
In-plane vibration; modal test; porosity distributions; porous annular plate
类别
资金
- National Natural Science Foundation of China [11902368]
- Key Laboratory of Vibration and Control of Aero-Propulsion System, Ministry of Education, Northeastern University [VCAME202006]
In this study, a semi-analytical model was proposed to investigate the in-plane vibration behavior of porous annular plate with porosity distributions. The theoretical model was established using a variational method combined with a multi-segment technique, and numerical examples were utilized to discuss convergence characteristics and numerical stability. The proposed method showed good prediction capabilities and acceptable errors, and the influences of geometrical and material parameters on the in-plane vibration characteristics were also explored.
A semi-analytical model is proposed in this study to investigate the in-plane vibration behavior of porous annular plate with porosity distributions in the thickness and radial directions. A variational method combined with a multi-segment technique is employed to establish the theoretical model of elastic restrained porous annular plate. Admissible functions of each plate segment are expanded in the mixed series form, that is, the Jacobian orthogonal polynomial for radial variables and Fourier series for circumferential variables. The boundary penalty parameters are introduced to implement different boundary restrictions and the coupling penalty parameters are employed for ensuring the continuity conditions between segments. A series of numerical examples are given to discuss the convergence characteristics and numerical stability of the current model. The comparison between modal tests and numerical predictions shows that good prediction capabilities with acceptable errors are achieved by the proposed method. The influences of geometrical and material parameters on the in-plane vibration characteristics of porous annular plate are also discussed in detail.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据