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An evaluation of function-based representations and information archival in engineering design.

机译：工程设计中基于功能的表示形式和信息归档的评估。

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摘要

Recent research in function-based design includes the development of a vocabulary of functions, the Functional Basis, and a repository of products and their functions. Many design tools are being developed around this vocabulary and repository to support conceptual design. The usefulness of these tools, however, is dependent on the quality of the vocabulary and the information contained in the repository. In this research, both the vocabulary and the repository are empirically evaluated to understand their strengths and limitations. A statistical analysis is performed on function models in the repository to determine the frequency of usage of Functional Basis terms. It is determined from this analysis that many of the functions described in the repository are component-specific, contradicting the intent of function-based design, which is to remain solution-neutral. The hierarchical organization of the vocabulary is also analyzed by altering the level used within function structures. It is concluded that the hierarchy allows changes in the level of specificity of functions, but it is independent of function decomposition. A set of pruning rules is then presented that reduces the number of highly decomposed, component-specific functions from function structures. Pruned function structures are simpler, less component-specific, and provide a more consistent level of decomposition for repository tools to reason upon. Opportunities for future work identified through this research include extending and refining the existing vocabulary, developing a grammar for function structures, and developing a schema and similarity metric for a next-generation repository.
机译：基于功能的设计的最新研究包括功能词汇表，功能基础以及产品及其功能库的开发。正在围绕该词汇表和存储库开发许多设计工具以支持概念设计。但是，这些工具的有用性取决于词汇表的质量和存储库中包含的信息。在这项研究中，根据经验评估了词汇表和存储库，以了解其优势和局限性。对存储库中的功能模型执行统计分析，以确定使用功能基础术语的频率。通过此分析可以确定，存储库中描述的许多功能是特定于组件的，这与基于功能的设计的意图相矛盾，后者旨在保持解决方案中立。通过更改功能结构中使用的级别，还可以分析词汇的层次结构。结论是，层次结构允许功能特定性级别的更改，但它与功能分解无关。然后提供了一组修剪规则，这些规则减少了功能结构中高度分解的，特定于组件的功能的数量。修剪后的功能结构更简单，特定于组件的较少，并为存储库工具提供了更一致的分解级别以供推理。通过这项研究确定的未来工作机会包括扩展和完善现有词汇表，为功能结构开发语法以及为下一代存储库开发模式和相似性度量。

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  • 作者

    Caldwell, Benjamin William.;

  • 作者单位

    Clemson University.;

  • 授予单位 Clemson University.;
  • 学科 Engineering Mechanical.
  • 学位 M.S.
  • 年度 2009
  • 页码 145 p.
  • 总页数 145
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 机械、仪表工业;
  • 关键词

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