摘要
透波材料与结构作为一种集透波、承载、耐温于一体的多功能复合材料结构,在雷达天线罩、隐身蒙皮和5G通信等部件上发挥着重要作用。提出玻璃纤维增强热塑性聚醚醚酮聚合物透波3D打印丝材制备的方法,分析了该聚醚醚酮基打印丝材的透波及力学性能,研究了不同玻璃纤维质量分数对打印丝材透波性能的影响规律,得到了满足高效透波性能需求的最佳的材料工艺参数;发挥熔融沉积3D打印在制备复合材料功能结构上的优势,设计制造了蜂窝夹芯透波超材料结构。电磁测试结果表明,所设计的透波超材料结构在TE和TM模式下,2~18 GHz频率范围为透波率分别达到了94.36%和94.62%。高效透波打印丝材可控制造和透波超材料结构可控设计制造方法为装备隐身天线罩、隐身蒙皮的实现提供了有效支撑。
As a multi-functional composite structure that integrates wave transmission,load bearing and temperature resistance,wave-transmitting material and structure play an important role in radar radome,stealth skin and 5G communication components.A method for the preparation of glass fiber reinforced thermoplastic polyether ether ketone(PEEK)polymer wave-permeable 3D printing filament is proposed.The mechanical and wave-permeable properties of the PEEK-based filament are analyzed,and the effects of varying glass fiber content on these properties are investigated.Optimal material processing parameters are determined to achieve high-efficiency wave-permeable performance.Leveraging the advantages of fused deposition modeling 3D printing,a honeycomb sandwich wave-transmitting metamaterial structure is designed and fabricated for composite materials.The electromagnetic test results indicate that the wave transmittance of the designed metamaterial achieves 94.36%and 94.62%in the frequency range of 2-18 GHz in TE and TM mode,respectively.The method of high efficiency transparent printing wire controllable manufacturing and transparent metamaterial controllable design and manufacturing provide effective support for the realization of stealth radome and stealth skin.
作者
任奥琪
梁庆宣
张童童
白金仓
李涤尘
REN Aoqi;LIANG Qingxuan;ZHANG Tongtong;BAI Jincang;LI Dichen(State Key Laboratory for Manufacturing System Engineering,Xi’an Jiaotong University,Xi’an 710049;School of Mechanical Engineering,Xi’an Jiaotong University,Xi’an 710049)
出处
《机械工程学报》
北大核心
2025年第19期420-429,共10页
Journal of Mechanical Engineering
基金
陕西省杰出青年科学基金资助项目(2025JC-JCQN-035)。
关键词
宽频
透波
超材料
可控设计
3D打印
broadband
wave-transparent
metamaterial
controllable design
3D printing
