Abstract

The vibration and damping characteristics of the laminated composite cylindrical sandwich shell with carbon nanotube reinforced magnetorheological elastomer (CNT-MRE) core is presented in this article. Higher order shear deformation theory (HSDT) based on finite element (FE) formulation is employed to derive the governing equations of motion of the laminated composite cylindrical CNT-MRE sandwich shell. The present HSDT model of the cylindrical CNT-MRE sandwich shell is validated with the ABAQUS model in terms of natural frequencies on cantilever boundary condition. The influence of CNT reinforcement in the MRE layer of the cylindrical sandwich shell is also studied through the structural rigidity. The detailed parametric investigations are performed to study the influence of magnetic field intensities, thickness ratio, radius of curvature and ply orientation on the stiffness and damping behavior of composite cylindrical CNT-MRE sandwich shell.

摘要

本文介绍了具有碳纳米管增强磁流变弹性体 (CNT-MRE) 核的层状复合圆柱夹层壳的振动和阻尼特性。基于有限元 (FE) 公式的高阶剪切变形理论 (HSDT) 用于推导层压复合材料圆柱形 CNT-MRE 夹层壳的运动控制方程。圆柱形 CNT-MRE 夹层壳的当前 HSDT 模型在悬臂边界条件的固有频率方面用 ABAQUS 模型进行了验证。还通过结构刚度研究了 CNT 增强材料对圆柱形夹层壳 MRE 层的影响。进行了详细的参数研究，以研究磁场强度、厚度比、