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首页> 外文学位 >Expert system based approach for material selection of automobile body-in-white structural panels using numerical ranking and sustainability indices.
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Expert system based approach for material selection of automobile body-in-white structural panels using numerical ranking and sustainability indices.

机译：基于专家系统的基于数值排名和可持续性指标的汽车白车身结构面板材料选择方法。

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摘要

The goal of this work is to establish a set of quantifiable measures for design for sustainability (DFS) that can be applied to automotive applications in terms of environmental, social, economic and technical aspects. In this study, a comprehensive analysis was made in order to develop a methodology that can evaluate different body-in-white designs in terms of major sustainability aspects. Besides the complete life cycle analysis, environmental impacts and cost factors will be analyzed over vehicle's entire life-cycle (fuel extraction and refining, Pre-manufacturing, Manufacturing, Use, and Post-use stages). The considered material options include: conventional steel, high strength steel, aluminum, magnesium, titanium and composites that are currently used in body-in-white (BIW) structures and exterior body panels. Sustainability scoring method was developed and used to decide on how using lighter materials in auto body applications is beneficial or not. The proposed major sustainable factors are categorized into four major groups: environmental, economical, social and technical groups. Also, each group has corresponding factors which were chosen by extensive search and screening, so only important sustainability aspects for auto body design have been selected in this study. Then the dissertation proceeds to show some sustainability scoring methods in order to get better understanding as well as relative ranking for different materials from sustainability point of view.;Moreover, this work discusses the role and application of some multi-criteria decision making methods in materials selection, namely quality function deployment (QFD) and analytic hierarchy process (AHP). However, multi-criteria decision making methods are efficient tools to choose alternative from large set of alternatives, especially when two or more conflicting goals are present. Besides that, knowledge based system (KBS) was established for eco-material selection for auto-body structural panels. The goal behind using KBS is to help designers in material selection process which usually needs experience, time and effort.
机译：这项工作的目标是建立一套可持续性设计（DFS）的量化措施，这些措施可以在环境，社会，经济和技术方面应用于汽车应用。在这项研究中，进行了全面的分析，以便开发一种可以在主要可持续性方面评估不同白车身设计的方法。除了完整的生命周期分析之外，还将在车辆的整个生命周期（燃料提取和精炼，制造前，制造，使用和使用后阶段）中分析环境影响和成本因素。考虑的材料选择包括：常规钢，高强度钢，铝，镁，钛以及当前用于白车身（BIW）结构和车身外部面板的复合材料。开发了可持续性评分方法，用于确定在车身应用中使用较轻的材料是否有益。拟议的主要可持续因素分为四个主要类别：环境，经济，社会和技术类别。此外，每个小组都有相应的因素，这些因素是通过广泛的搜索和筛选选择的，因此，在这项研究中，仅选择了车身设计的重要可持续性方面。然后，论文从可持续性的角度出发，展示了一些可持续性评分方法，以便更好地理解和评价不同材料的相对等级。；此外，本文探讨了一些多准则决策方法在材料中的作用和应用。选择，即质量功能部署（QFD）和层次分析法（AHP）。但是，多准则决策方法是从大量备选方案中选择备选方案的有效工具，尤其是在存在两个或多个相互冲突的目标时。除此之外，建立了基于知识的系统（KBS）用于车身结构面板的生态材料选择。使用KBS的目的是帮助设计人员进行通常需要经验，时间和精力的材料选择过程。

著录项

  • 作者

    Mayyas, Ahmad T.;

  • 作者单位

    Clemson University.;

  • 授予单位 Clemson University.;
  • 学科 Engineering General.;Sustainability.
  • 学位 Ph.D.
  • 年度 2012
  • 页码 219 p.
  • 总页数 219
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

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