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Multi-criteria optimization of large composite parts

机译：大型复合零件的多准则优化

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摘要

The objective of the current study is the optimization of the structure and manufacturing processes of large composite plastic parts. The main attention is paid to strengthening of plastic preformed shell by adding variable thickness glass-fiber composite layers and optimizing the material concentrations of the reinforcement layer. The final properties of the part are determined by minimizing the cost and production time simultaneously. The multistage optimization procedure has been applied. According to this approach, the solution of the posed optimization problem has been decomposed into FEA (including free size optimization), meta-modeling and global optimization. Multiple criteria analysis (MCA) is used for evaluating decision options against multiple criteria. Search for global optimum has been performed using of genetic algorithm. The solution has been implemented in MATLAB code. The product family of the composite plastic bathtub, together with the derivate products and their production technologies, is designed using proposed methodology.
机译：当前研究的目的是优化大型复合塑料零件的结构和制造工艺。通过增加可变厚度的玻璃纤维复合材料层和优化增强层的材料浓度，主要致力于增强塑料预制壳。通过同时最小化成本和生产时间来确定零件的最终性能。多阶段优化程序已被应用。根据这种方法，提出的优化问题的解决方案已分解为FEA（包括自由大小优化），元建模和全局优化。多标准分析（MCA）用于根据多个标准评估决策选项。使用遗传算法进行了全局最优搜索。该解决方案已在MATLAB代码中实现。复合塑料浴缸的产品系列以及衍生产品及其生产技术都是使用建议的方法进行设计的。

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  • 来源
    《Composite Structures》 |2010年第9期|2146-2152|共7页
  • 作者

    M. Pohlak; J. Majak; K. Karjust; R. Kuettner;

  • 作者单位

    Department of Machinery, Tallinn University of Technology, Ehitajate tee 5, 19086 Tallinn, Estonia;

    rnDepartment of Machinery, Tallinn University of Technology, Ehitajate tee 5, 19086 Tallinn, Estonia;

    rnDepartment of Machinery, Tallinn University of Technology, Ehitajate tee 5, 19086 Tallinn, Estonia;

    rnDepartment of Machinery, Tallinn University of Technology, Ehitajate tee 5, 19086 Tallinn, Estonia;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    multi-criteria optimization; free size optimization; glass-fiber reinforced composite;

    机译：多标准优化;免费尺寸优化;玻璃纤维增​​强复合材料;

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