基于改进型Kriging-HDMR的翼身融合水下滑翔机外形优化设计

张 宁; 王 鹏; 宋保维

doi:10.11993/j.issn.2096-3920.2019.05.004

基于改进型Kriging-HDMR的翼身融合水下滑翔机外形优化设计

doi: 10.11993/j.issn.2096-3920.2019.05.004

西北工业大学航海学院, 陕西西安, 710072

基金项目: 国家自然科学资金项目资助(51875466, 51805436)

详细信息

作者简介:
张宁(1989-), 男, 在读博士, 主要研究方向为高维代理模型优化.

中图分类号: TJ630.2; U674.941; TP18
计量
- 文章访问数: 549
- HTML全文浏览量: 73
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- 被引次数: 0
出版历程
- 收稿日期: 2019-05-15
- 修回日期: 2019-06-03
- 刊出日期: 2019-10-31

Shape Optimization for Blended-Wing-Body Underwater Glider Using Improved Kriging-HDMR

School of Marine Science and Technology, Northwestern Polytechnical University, Xi’an 710072, China

摘要

摘要: 为了使翼身融合水下滑翔机(BWBUG)具有更优的升阻特性, 文中通过在优化过程中引入改善期望(EI)补点策略和移动中心点策略, 对传统克里金-高维模型表示(Kriging-HDMR)优化方法进行了改进, 以达到更准确的预测精度和更高效的优化效率。首先通过基于分类函数变换的参数化方法, 建立BWBUG外形的参数化模型, 然后以最大化升阻比为优化目标, 采用改进型Kriging-HDMR优化方法, 对BWBUG外形进行优化设计。试验结果表明, 优化后BWBUG外形的升阻比比初始外形提高了3.135 6%。
- 翼身融合水下滑翔机 /
- 克里金-高维模型表示 /
- 外形优化 /
- 改善期望
Abstract: To make the shape of blended-wing-body underwater glider(BWBUG) have better lift and drag characteristics, an advanced surrogate-based optimization method using a Kriging-high dimensional model representation(Kriging-HDMR) is presented. In this algorithm, expected improvement(EI) criterion and moving cut point are employed during optimization process to improve the accuracy and efficiency of the optimization. Class-shape function transformation(CST) method is used to establish a parameterization model for the shape of BWBUG. Then, in order to maximize the lift-to-drag ratio, the improved Kriging-HDMR method is used to optimize the shape of BWBUG. The results show that the lift-to-drag ratio of the BWBUG shape is improved by 3.135 6% with the proposed HDMR optimization method.
- blended-wing-body underwater glider(BWBUG) /
- Kriging-high dimensional model representation(HDMR) /
- shape optimization /
- expected improvement(EI)

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参考文献(15)

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