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Free vibration analysis of FG-CNTRC conical shell panels using the kernel particle Ritz element-free method

机译：FG-CNTRC锥形壳板的自由振动分析使用核粒子ritz元素法

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摘要

The free vibration analysis of functionally graded carbon nanotube reinforced composite (FG-CNTRC) conical shell is carried out by using element-free kp-Ritz method. Based on the first-order shear deformation shell theory, the approximate displacement field is expressed by the shape function of the nuclear particle, and the governing equation is established. The material properties of conical shell plates are determined by rule of mixtures and change with the thickness. In this work, the convergence is studied in terms of the number of nodes, and the accuracy of the proposed method is verified by comparing the current solution with the solution in the literature from different aspects. The effects of volume fraction, boundary conditions, distribution patterns of CNTs, half vertex angle and radius thickness ratio on their free vibration frequency characteristics are discussed in detail.
机译：通过使用无元素的KP-ritz方法进行功能梯度碳纳米管增强复合材料（FG-CNTRC）锥形壳的自由振动分析。基于一阶剪切变形壳理论，近似位移场由核粒子的形状函数表示，并且建立了控制方程。锥形壳板的材料特性通过混合物的规则和随着厚度的变化来确定。在这项工作中，通过节点的数量研究了收敛，并且通过从不同方面的文献中的解决方案比较了当前解决方案来验证所提出的方法的准确性。详细讨论了体积分数，边界条件，CNT，半顶角和半径厚度比对自由振动频率特性的影响。

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  • 来源
    《Composite Structures》 |2021年第1期|112987.1-112987.20|共20页
  • 作者

    Xiang Ping; Xia Qing; Jiang L. Z.; Peng Linxin; Yan J. W.; Liu Xiang;

  • 作者单位

    Cent South Univ Sch Civil Engn Changsha 410075 Hunan Peoples R China|Guangxi Univ Guangxi Key Lab Disaster Prevent & Engn Safety Nanning Peoples R China|State Key Lab Strength & Vibrat Mech Struct Xian 710049 Peoples R China;

    Cent South Univ Sch Civil Engn Changsha 410075 Hunan Peoples R China;

    Cent South Univ Sch Civil Engn Changsha 410075 Hunan Peoples R China;

    Guangxi Univ Guangxi Key Lab Disaster Prevent & Engn Safety Nanning Peoples R China|Guangxi Univ Coll Civil Engn & Architecture Nanning 530004 Peoples R China;

    East China Jiaotong Univ Sch Civil Engn & Architecture Nanchang 330013 Jiangxi Peoples R China;

    Cent South Univ Sch Traff & Transportat Engn Changsha 410075 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

    Free vibration; Element-free kp-Ritz method; FG-CNTRC; Conical shell panel;

    机译：自由振动;无元素kp-ritz方法;fg-cntrc;锥形壳板;

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