刚性-灵活的相互锁定的元结构使合规隐形成为可能
Chengtao Sun1, Dawei Li1, Wenhe Liao1
1School of Mechanical Engineering (SME), Nanjing University of Science and Technology (NJUST), 200 Xiao Ling Wei Road, Nanjing 210094, China.
Science advances
|December 3, 2025
概括
研究人员开发了一种坚固,灵活的隐形皮肤,灵感来自链条. 这种电磁皮肤为航空航天应用提供超宽带吸收和显著的雷达减少.
科学领域:
- 材料科学 材料科学 材料科学
- 电磁学 电磁学 电磁学 电磁学
- 航空航天工程 航空航天工程
背景情况:
- 古老的连锁邮件激发了一种新的隐形皮肤架构.
- 该设计将机械强度与电磁功能相结合.
- 现有的材料往往会损害电磁性能的强度.
研究的目的:
- 引入一个轻量级,可调整和承载载的隐形皮肤.
- 为了证明超宽带电磁吸收和雷达截面减小.
- 建立适应性,多功能表面的设计策略.
主要方法:
- 使用拓互锁单元制造隐形皮肤.
- 电磁吸收在广泛频率范围 (2-40 GHz) 的表征.
- 测试机械弹性,包括损坏和曲疲劳.
主要成果:
- 在2-40 GHz频段的96.3%范围内实现了90%以上的吸收率.
- 对极化和入射角度表现出不敏感.
- 在25%的单元损坏和10,000个曲周期后保持完整的功能.
- 当应用于机翼时,无人机雷达截面减少了98%以上.
结论:
- 链邮启发的隐形皮肤提供了卓越的机械和电磁性质.
- 这种可适应的多功能表面适用于先进的航空航天和可穿戴技术.
- 设计策略在具有挑战性的条件下实现了强大的电磁功能.
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