飞机上的新型机身形状的雷达吸收入口格子 结合元表面:使用EHVI-贝叶斯方法进行多学科设计和优化
Xufei Wang1, Yongqiang Shi1, Qingzhen Yang1
1School of Power and Energy, Northwestern Polytechnical University, Xi'an 710129, China.
Sensors (Basel, Switzerland)
|July 30, 2025
概括
这项研究引入了一种新型的气形状的雷达吸收入口网格 (RIG) 用于飞机. 优化的RIG显著减少了空气动力学损失,并增强了雷达截面 (RCS) 减小,提高了隐身性能.
科学领域:
- 电磁学 电磁学 电磁学 电磁学
- 空气动力学 航空动力学
- 材料科学 材料科学 材料科学
背景情况:
- 飞机发动机入口对于雷达截面 (RCS) 和空气动力学性能至关重要.
- 在进口格设计中,优化空气动力学效率和电磁隐形之间存在冲突.
- 超表面为飞机部件中的雷达吸收提供了潜在的潜力.
研究的目的:
- 提出和优化一个具有风翼形状的超表面雷达吸收入口格子 (RIG).
- 为了平衡空气动力学性能和电磁隐形的竞争要求.
- 为了减少来自飞机发动机进口的雷达散射.
主要方法:
- 使用带有PET,铜晶圆条和ITO膜的三明治结构设计RIG.
- 表面等离子极子用于电磁波吸收的应用.
- 使用由预期超体积改进 (EHVI) 驱动的多目标贝叶斯优化框架.
主要成果:
- 与矩形格相比,气翼形的RIG可以减少57.79%的空气动力损失.
- 在优化后,吸收带宽增加了111.99%.
- 雷达截面 (RCS) 显示高频带的降低超过8.77dBsm.
结论:
- 拟议的EHVI-贝叶斯优化有效地平衡了RIGs的空气动力学和隐身性能.
- 超表面RIG解决方案成功地减轻了来自飞机发动机进口的雷达信号强度.
- 这种方法为增强飞机隐形能力提供了一个可行的策略.
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