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Optimization of a roll over protective structure (ROPS) using nonlinear finite element analysis.

机译:使用非线性有限元分析优化防滚翻保护结构(ROPS)。

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摘要

The use of a conventional Roll Over Protective Structure CROPS) on farm tractors over the years has saved numerous lives and prevented countless injuries. By removing the ROPS, the tractor operators place themselves in unwarranted danger.; This led the National Institute for Occupational Safety and Health (NIOSH) and West Virginia University Mechanical and Aerospace Engineering to the development of a deployable ROPS, which could remain down to aid in required housing space for the tractor and prevent debris from striking the tractor operator while being driven.; This research effort focuses on the application of computer-aided design and analysis to structurally optimize the deployable ROPS and make it lighter. The first objective deals with the development of a finite element model (FEM) of the original deployable ROPS giving analytical results that matched the experimental results. This justified the use of a FEM to optimize the ROPS. Once this was accomplished, a FEM of an optimized deployable ROPS was created and verified as safe by checking energy and deflection results against the SAE J2I94 Static Load Standard. (Abstract shortened by UMI.)
机译:多年来,在农用拖拉机上使用传统的防滚翻保护结构(CROPS)挽救了许多生命,并避免了无数人受伤。通过拆除ROPS,拖拉机操作员将自己置于不必要的危险中。这导致美国国家职业安全与健康研究所(NIOSH)和西弗吉尼亚大学机械与航空工程学院开发了可展开的ROPS,该ROPS可以保持较低的水平,以帮助拖拉机保持所需的住房空间,并防止碎屑撞击拖拉机操作员在被驱动时。这项研究工作集中在计算机辅助设计和分析的应用上,以在结构上优化可部署的ROPS并使它更轻。第一个目标涉及原始可部署ROPS的有限元模型(FEM)的开发,给出的分析结果与实验结果相匹配。这证明使用FEM优化ROPS是合理的。完成此操作后,将创建优化的可部署ROPS的有限元模型,并通过对照SAE J2I94静态载荷标准检查能量和挠度结果来验证其安全性。 (摘要由UMI缩短。)

著录项

  • 作者

    Gillispie, Adam Michael.;

  • 作者单位

    West Virginia University.;

  • 授予单位 West Virginia University.;
  • 学科 Engineering Mechanical.; Engineering Agricultural.
  • 学位 M.S.M.E.
  • 年度 2000
  • 页码 86 p.
  • 总页数 86
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 机械、仪表工业;农业工程;
  • 关键词

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