The invention belongs to the field of conformal radome, in particular to a conformal radome. A conformal radome is divided into two parts: inner cover and outer cover. The inner cover is honeycomb sandwich structure. The honeycomb chooses good transmittance and interlaminar shear material. The honeycomb thickness is more than 15mm. The outer cover is solid thin-walled structure, and the material is the same as the inner cover skin material, so as to ensure the antenna's transmittance. The antenna is installed in the middle of the inner cover and the outer cover. After gluing the three parts, the screw connection is adopted. The invention can solve the problems of wave transmission, load-bearing and environmental adaptability of conformal array antenna, ensure that the antenna is not affected by adverse external environment, ensure that it has sufficient strength and stiffness under aerodynamic load, and meet the requirements of aircraft reconnaissance enemy aircraft and weight. At the same time, the design scheme of glue screw joint avoids the shortcomings of complex technology, difficult installation and maintenance of traditional conformal radome. It improves the technicality, reliability and maintainability.
【技术实现步骤摘要】
一种共形天线罩
本专利技术属于共形天线罩领域,具体涉及到一种共形天线罩。
技术介绍
作为飞机上重要的电子设备,共形阵列天线用于接收电磁信号,起到侦查敌机的作用。共形阵列天线由一系列精密的电子元器件组成,若直接安装于机体外表面,会因为遭受湿热侵蚀、盐雾腐蚀和紫外线照射而导致机械型面精度被破坏,元器件快速老化和损坏,天线性能下降,最终导致整机的侦查任务失效。目前,大多采用嵌入式或预埋式的共形天线罩,但其工艺复杂,安装和维护困难,可靠性和维修性差。
技术实现思路
本专利技术针对上述问题,设计一种共形天线罩,该共形天线罩分为内罩和外罩两部分,天线夹在内罩和外罩中间,从而使天线与外界恶劣环境隔离,起到保护天线的作用。共形天线罩采用高强度的透波复合材料,外罩采用实芯薄壁结构,以满足内部天线的透波要求和耐环境性能;内罩采用蜂窝夹层结构,以增强整体的刚度和强度,保证天线和天线罩的一体化结构设计方案在气动载荷作用下的承载能力,同时可以有效减重。与传统的嵌入式或预埋式共形天线罩结构相比,本专利提出的共形天线罩工艺简单,便于安装和维护,可靠性高,维修性好。技术方案一种共形天线罩,分为内罩和外罩两部分,内罩为蜂窝夹层结构,蜂窝选用良好透波性能和层间剪切性能材料,蜂窝厚度大于15mm;外罩为实芯薄壁结构,材料与内罩蒙皮材料相同,保证天线的透波性能。天线安装在内罩和外罩中间,三者通过胶接连接后,再采用螺接连接。所述胶接区域为天线刚度和强度较强区域,改善整体结构的传力途径,保证结构的安全性,且后续维护方便。内罩蒙皮和外罩选用高强度透波复合材料。所述蜂窝选用Nomax芳纶纸蜂窝。技术效果本专 ...
【技术保护点】
1.一种共形天线罩,分为内罩和外罩两部分,其特征在于:内罩为蜂窝夹层结构,蜂窝选用良好透波性能和层间剪切性能材料,蜂窝厚度大于15mm;所述外罩为实芯薄壁结构,外罩材料与内罩蒙皮材料相同,天线安装在内罩和外罩中间,三者通过胶接连接后,再采用螺接连接。
【技术特征摘要】
1.一种共形天线罩,分为内罩和外罩两部分,其特征在于:内罩为蜂窝夹层结构,蜂窝选用良好透波性能和层间剪切性能材料,蜂窝厚度大于15mm;所述外罩为实芯薄壁结构,外罩材料与内罩蒙皮材料相同,天线安装在内罩和外罩中间,三者通过胶接连接后,再采用螺接连接。2.根据...
【专利技术属性】
技术研发人员:王敏,李昌林,李兴德,
申请(专利权)人:中国航空工业集团公司济南特种结构研究所,
类型:发明
国别省市:山东,37
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