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Coiled energy absorbing devices.

机译:盘绕式能量吸收装置。

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摘要

This dissertation investigates the potential for energy consumption through the use of plastically deforming springs. A mechanical spring is defined as an elastic body which has the primary function to deflect or distort under load, and return to its original shape when the load is removed (SAE 1996). Therefore, if a spring plastically deforms, the name no longer fits the definition. Coiled Energy Absorbing Devices (CEAD) is the selected name for the topic of this research. Springs taking a permanent set or developing non-elastic deformations have typically been avoided and, as such, the level of information is limited. This research project used non-linear finite element analysis as well as full-scale prototype static and dynamic testing to study various CEAD configurations and their response to different loading conditions. A full-scale computer model of a Truck Mounted Attenuator (TMA) is generated and results are discussed.
机译:本文研究了通过塑性变形弹簧消耗能量的可能性。机械弹簧被定义为一种弹性体,其主要功能是在载荷作用下挠曲或变形,并在去除载荷后恢复其原始形状(SAE 1996)。因此,如果弹簧发生塑性变形,则该名称将不再符合定义。盘绕式能量吸收装置(CEAD)是本研究主题的选定名称。通常避免了弹簧发生永久变形或出现非弹性变形,因此,信息水平受到限制。该研究项目使用非线性有限元分析以及全面的原型静态和动态测试来研究各种CEAD配置及其对不同载荷条件的响应。生成了车载衰减器(TMA)的完整计算机模型,并讨论了结果。

著录项

  • 作者

    Alberson, Dean C.;

  • 作者单位

    Texas A&M University.;

  • 授予单位 Texas A&M University.;
  • 学科 Engineering Civil.; Engineering Mechanical.; Transportation.
  • 学位 Ph.D.
  • 年度 2000
  • 页码 170 p.
  • 总页数 170
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 建筑科学;机械、仪表工业;综合运输;
  • 关键词

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