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Nonlinear response of fluid-conveying functionally graded cylindrical shells subjected to mechanical and thermal loading conditions

机译：承受机械和热负荷条件的功能性梯度输送流体的圆柱壳的非线性响应

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摘要

A method to predict the nonlinear dynamic behavior of the fluid-conveying functionally graded (FG) cylindrical shell is presented in this paper. The thermal effects are included and the material properties of the FG cylindrical shell are assumed to be temperature-dependent and vary through the thickness according to the power-law function. By considering the in-plane and rotary inertia, the nonlinear dynamic equations of the fluid-conveying FG cylindrical shell are derived based on the von 'Carman nonlinear theory, Hamilton's principle and the fluid velocity potential. Galerkin's method is utilized to convert the governing partial differential equations to nonlinear ordinary differential equations. A reduction model is developed to describe the nonlinear dynamics behavior of the fluid-conveying FG cylindrical shell. Emphasis is placed on investigating the effects of the variations of the flow velocity, the thermal load, the axial load and the volume fraction exponent on the nonlinear vibrations of fluid-conveying FG cylindrical shells. The results obtained by this method are compared with those of other experimental and numerical investigations and good agreement is obtained. (C) 2017 Elsevier Ltd. All rights reserved.
机译：本文提出了一种预测流体输送功能梯度圆柱壳非线性动力学行为的方法。包括了热效应，并且假定FG圆柱壳的材料属性与温度有关，并且会根据幂律函数在整个厚度范围内变化。考虑平面内和旋转惯性，基于冯·卡曼非线性理论，汉密尔顿原理和流体速度势，得出了流体输送FG圆柱壳的非线性动力学方程。 Galerkin方法用于将控制性偏微分方程转换为非线性常微分方程。建立了简化模型来描述流体输送FG圆柱壳的非线性动力学行为。重点是研究流速，热负荷，轴向负荷和体积分数变化对流体输送FG圆柱壳非线性振动的影响。通过这种方法获得的结果与其他实验和数值研究的结果进行了比较，并获得了良好的一致性。 （C）2017 Elsevier Ltd.保留所有权利。

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  • 来源
    《Composite Structures》 |2017年第5期|675-684|共10页
  • 作者

    Sheng G. G.; Wang X.;

  • 作者单位

    Changsha Univ Sci & Technol, Sch Civil Engn & Architecture, Changsha 410114, Hunan, Peoples R China;

    Shanghai Jiao Tong Univ, State Key Lab Ocean Engn, Sch Naval Architecture Ocean & Civil Engn, Shanghai 200240, Peoples R China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Functionally graded; Fluid-conveying; Cylindrical shell; Nonlinear vibration;

    机译：功能分级;流体输送;圆柱壳;非线性振动;

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