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Development of approximations for HSCT wing bending material weight using response surface methodology.

机译：使用响应面方法开发HSCT机翼弯曲材料重量的近似值。

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摘要

A procedure for generating a customized weight function for wing bending material weight of the High Speed Civil Transport (HSCT) is described. The weight function is based on the HSCT configuration parameters. A response surface methodology is used to fit a quadratic polynomial to data gathered from a large number of structural optimizations, a coarse-grained parallelization of structural optimization procedure is implemented by a master-slave processor arrangement on an Intel Paragon computer. The results of the structural optimization are noisy. Noise reduction in the structural optimization results is discussed. It is shown that the response surface filters out this noise. Statistical design of experiments technique is used to minimize the number of required structural optimizations and to maintain accuracy. Simple analysis techniques are used to find regions of the design space where the reasonable HSCT designs could occur, thus customizing the weight function to the design requirements of the HSCT, while the response surface itself is created employing detailed analysis methods. Analysis of variance is used to reduce the number of polynomial terms in the response surface model function. The linear and constant corrections are employed to improve the accuracy of the response surface model. Corrections are based on small number of high fidelity results. Configuration optimization of the HSCT employing customized weight function is compared to the configuration optimization of the HSCT with a general weight function.
机译：描述了生成定制的重量函数的程序，该函数用于高速民用运输（HSCT）的机翼弯曲材料重量。权重函数基于HSCT配置参数。响应面方法用于将二次多项式拟合到从大量结构优化中收集的数据，结构优化过程的粗粒度并行化由Intel Paragon计算机上的主从处理器装置实现。结构优化的结果很嘈杂。讨论了结构优化结果中的降噪。结果表明，响应表面可以滤除这种噪声。实验技术的统计设计用于最大程度地减少所需的结构优化次数并保持准确性。使用简单的分析技术来查找可能发生合理的HSCT设计的设计空间区域，从而根据HSCT的设计要求自定义权重函数，同时使用详细的分析方法来创建响应曲面本身。方差分析用于减少响应面模型函数中多项式项的数量。线性和常数校正用于提高响应表面模型的准确性。校正基于少量的高保真结果。将采用定制权重函数的HSCT的配置优化与具有常规权重函数的HSCT的配置优化进行比较。

著录项

  • 作者

    Balabanov, Vladimir Olegovich.;

  • 作者单位

    Virginia Polytechnic Institute and State University.;

  • 授予单位 Virginia Polytechnic Institute and State University.;
  • 学科 Statistics.;Engineering Mechanical.;Engineering Aerospace.
  • 学位 Ph.D.
  • 年度 1997
  • 页码 148 p.
  • 总页数 148
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

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