• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Engineering Computations >Application of a new local effective constrained response surface method in structural reliability optimization design
【24h】

Application of a new local effective constrained response surface method in structural reliability optimization design

机译：新的局部有效约束响应面法在结构可靠性优化设计中的应用

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Purpose Meta-model method has been widely used in structural reliability optimization design. The main limitation of this method is that it is difficult to quantify the error caused by the meta-model approximation, which leads to the inaccuracy of the optimization results of the reliability evaluation. Taking the local high efficiency of the proxy model, this paper aims to propose a local effective constrained response surface method (LEC-RSM) based on a meta-model.Design/methodology/approach The operating mechanisms of LEC-RSM is to calculate the index of the local relative importance based on numerical theory and capture the most effective area in the entire design space, as well as selecting important analysis domains for sample changes. To improve the efficiency of the algorithm, the constrained efficient set algorithm (ESA) is introduced, in which the sample point validity is identified based on the reliability information obtained in the previous cycle and then the boundary sampling points that violate the constraint conditions are ignored or eliminated.Findings The computational power of the proposed method is demonstrated by solving two mathematical problems and the actual engineering optimization problem of a car collision. LEC-RSM makes it easier to achieve the optimal performance, less feature evaluation and fewer algorithm iterations.Originality/value This paper proposes a new RSM technology based on proxy model to complete the reliability design. The originality of this paper is to increase the sampling points by identifying the local importance of the analysis domain and introduce the constrained ESA to improve the efficiency of the algorithm.
机译：目的元模型方法已广泛应用于结构可靠性优化设计中。该方法的主要局限性在于难以量化由元模型近似引起的误差，这导致可靠性评估的优化结果不准确。鉴于代理模型的局部高效性，本文旨在提出一种基于元模型的局部有效约束响应面方法（LEC-RSM）。设计/方法/方法LEC-RSM的运行机理是计算根据数值理论确定局部相对重要性的指数，并捕获整个设计空间中最有效的区域，并为样本变化选择重要的分析域。为了提高算法的效率，引入了约束有效集算法（ESA），其中基于前一周期获得的可靠性信息来确定采样点有效性，然后忽略违反约束条件的边界采样点。发现通过解决两个数学问题和实际的汽车碰撞工程优化问题，证明了该方法的计算能力。 LEC-RSM可以更轻松地实现最佳性能，减少特征评估，减少算法迭代次数。来源/价值本文提出了一种新的基于代理模型的RSM技术来完成可靠性设计。本文的独创性是通过识别分析域的局部重要性来增加采样点，并引入约束ESA以提高算法的效率。

著录项

  • 来源
    《Engineering Computations》 |2019年第3期|1055-1078|共24页
  • 作者

    Su Hailiang; Lan Fengchong; He Yuyan; Chen Jiqing;

  • 作者单位

    South China Univ Technol, Sch Mech & Automot Engn, Guangzhou, Guangdong, Peoples R China|Guangdong Prov Key Lab Automot Engn, Guangzhou, Guangdong, Peoples R China;

    South China Univ Technol, Sch Mech & Automot Engn, Guangzhou, Guangdong, Peoples R China|Guangdong Prov Key Lab Automot Engn, Guangzhou, Guangdong, Peoples R China;

    South China Univ Technol, Sch Business Adm, Guangzhou, Guangdong, Peoples R China;

    South China Univ Technol, Sch Mech & Automot Engn, Guangzhou, Guangdong, Peoples R China|Guangdong Prov Key Lab Automot Engn, Guangzhou, Guangdong, Peoples R China;

  • 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

    Response surface method; Efficient set algorithm; Local effective constraint; Structural reliability optimization design; Uncertainty optimization;

    机译：响应面法;有效集算法;局部有效约束;结构可靠性优化设计;不确定性优化;

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号