首页> 外文会议>2002 ASME International Mechanical Engineering Congress and Exposition , Nov 17-22, 2002, New Orleans, Louisiana >INTEGRATING OPTIMAL TRUSS DESIGN METHODOLOGIES INTO MECHANICAL ENGINEERING TECHNOLOGY
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INTEGRATING OPTIMAL TRUSS DESIGN METHODOLOGIES INTO MECHANICAL ENGINEERING TECHNOLOGY

机译:将最佳桁架设计方法集成到机械工程技术中

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The author has previously shown that single criterion optimization methodologies can be effectively integrated into lower-division mechanical engineering technology courses using single beam elements and a variety of load cases~1. In that paper, multiple methodologies of varying beam cross-section to minimize weight of the beam or to approach a constant stress state in the beam were described and their use investigated. This paper describes the application of these single criterion optimization methodologies to multiple-part assemblies, specifically engineering trusses. Although the optimization methodologies are similar, they are all far more complex in multiple-part assemblies than in single beam element optimization problem. The truss optimization theory, analysis, and testing that were utilized in the classroom and laboratory will be discussed in this paper. The correlation between optimization results from both spreadsheet solver and finite element analysis (FEA) solutions is presented. Also, the subsequent correlation between the analysis results and the experimental verification from photoelastic studies of prototype trusses is presented.
机译:作者先前已经表明,使用单梁单元和各种载荷工况,可以将单准则优化方法有效地集成到低级机械工程技术课程中(〜1)。在那篇论文中,描述了多种改变梁截面以最小化梁的重量或使梁达到恒定应力状态的方法,并研究了它们的用途。本文介绍了这些单准则优化方法在多零件装配中的应用,特别是工程桁架。尽管优化方法是相似的,但多零件装配中的优化方法都比单梁单元优化问题复杂得多。本文将讨论在教室和实验室中使用的桁架优化理论,分析和测试。给出了电子表格求解器和有限元分析(FEA)解决方案的优化结果之间的相关性。此外,还提出了分析结果与原型桁架的光弹研究的实验验证之间的后续相关性。

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