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Design and application of a new tapered superelement for analysis of revolving geometries

机译:一种新的锥形超元分析旋转几何的设计与应用

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摘要

Structures of tapered geometry are customarily used in a variety of applications. The analysis of such structures is usually made through finite element method using traditional beam, shell or brick elements. In this paper, a new tapered superelement is presented that lends itself to modeling revolving geometries under lateral, axial and torsional loads. The presented tapered superelement has 16 nodes. The performance of this element under static and dynamic loading and in rotating condition is examined. It is shown that this element yields accurate results with higher computational efficiency compared to conventional elements. Furthermore, it is verified that a single tapered superelement may be used instead of 32 or more conventional brick or shell elements with the same order of accuracy. Moreover, it is shown that the use of beam elements with tapered geometry may result in inaccurate results. It is concluded that the use of the proposed superelement offers accurate results at lower computational cost for any revolving geometries.
机译:锥形几何形状的结构通常用于各种应用中。通常使用传统的梁,壳或砖单元通过有限元方法对此类结构进行分析。在本文中,提出了一种新的锥形超单元,可以对侧向,轴向和扭转载荷下的旋转几何建模。呈现的锥形超单元有16个节点。检查了该元件在静态和动态载荷下以及在旋转条件下的性能。结果表明,与常规元件相比,该元件可产生准确的结果,并具有更高的计算效率。此外,已经证实,可以使用单个锥形超元件代替32个或更多个具有相同精度等级的常规砖或壳元件。而且,已经表明,使用具有锥形几何形状的梁元件可能导致不准确的结果。结论是,对于任何旋转的几何形状,使用拟议的超级元素都能以较低的计算成本提供准确的结果。

著录项

  • 来源
    《Finite Elements in Analysis and Design》 |2011年第11期|p.1242-1252|共11页
  • 作者单位

    Center of Excellence in Design, Robotics and Automation (CEDRA), Department of Mechanical Engineering, Sharif University of Technology, Azadi Ave, Tehran, Iran;

    Center of Excellence in Design, Robotics and Automation (CEDRA), Department of Mechanical Engineering, Sharif University of Technology, Azadi Ave, Tehran, Iran;

    Center of Excellence in Design, Robotics and Automation (CEDRA), Department of Mechanical Engineering, Sharif University of Technology, Azadi Ave, Tehran, Iran;

  • 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

    FEM; superelement; tapered element; revolving geometries; rotating taper;

    机译:有限元超元素锥形元件旋转的几何形状;旋转锥度;
  • 入库时间 2022-08-18 02:59:11

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