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首页> 外文期刊>Composite Structures >Vibration and flutter analysis of functionally graded carbon nanotube-reinforced composite regular polygon built-up structures in supersonic airflow
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Vibration and flutter analysis of functionally graded carbon nanotube-reinforced composite regular polygon built-up structures in supersonic airflow

机译：超声波气流功能梯度碳纳米管增强复合常规多边形结构的振动和颤动分析

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摘要

The paper is dedicated to the vibration and flutter analysis of functionally graded carbon nanotube-reinforced composite (FG-CNTRC) regular polygon built-up (RPB) structures with general boundary conditions. By employing the first-order shear deformation theory (FSDT) and quasi-steady supersonic piston theory, the energy functional expressions of the system are formulated. The governing equations of the system are derived based on the Hamilton's principle and the solutions for the dynamic problems of the system are obtained by using the modified Ritz method. The accuracy and efficiency of the proposed model are validated by comparing the obtained solutions with those from the FEM and literature. Finally, the effects of the boundary condition, volume fraction of carbon nanotubes (CNT) and CNT distribution on the vibration and flutter characteristics of the CNTRC RPB structures are discussed by carrying out the parametric studies.
机译：本文专用于具有一般边界条件的功能梯度碳纳米管增强复合材料（FG-CNTRC）常规多边形构建（RPB）结构的振动和颤动分析。 通过采用一阶剪切变形理论（FSDT）和准稳态超音子活塞理论，配制了系统的能量功能表达。 系统的控制方程是基于汉密尔顿的原理和系统动态问题的解决方案来源，通过使用改进的丽振方法获得。 通过将所获得的解决方案与来自FEM和文献的那些进行比较来验证所提出的模型的准确性和效率。 最后，通过进行参数研究讨论了碳纳米管（CNT）和CNT分布对CNTRC RPB结构的振动和颤振特性的影响。

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  • 来源
    《Composite Structures》 |2021年第9期|114144.1-114144.13|共13页
  • 作者

    Zhou Kai; Su Jinpeng; Hu Zhengmin; Hua Hongxing;

  • 作者单位

    Shanghai Jiao Tong Univ Collaborat Innovat Ctr Adv Ship & Deep Sea Explor Inst Vibrat Shock & Noise State Key Lab Mech Syst & Vibrat Dongchuan Rd 800 Shanghai 200240 Peoples R China;

    Shandong Univ Sci & Technol Qianwangang Rd 579 Qingdao 266590 Peoples R China;

    Shanghai Jiao Tong Univ Collaborat Innovat Ctr Adv Ship & Deep Sea Explor Inst Vibrat Shock & Noise State Key Lab Mech Syst & Vibrat Dongchuan Rd 800 Shanghai 200240 Peoples R China;

    Shanghai Jiao Tong Univ Collaborat Innovat Ctr Adv Ship & Deep Sea Explor Inst Vibrat Shock & Noise State Key Lab Mech Syst & Vibrat Dongchuan Rd 800 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 carbon nanotube-reinforced composite; Regular polygon built-up structure; Vibration; Flutter; Supersonic airflow;

    机译：功能渐进的碳纳米管增强复合材料;常规多边形建筑结构;振动;颤动;超音速气流;

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