某型宽频带雷达天线罩的研制

Development of a broadband radome

本文用FiberSIM复合材料软件仿真得到最佳铺层方法,并利用软件仿真结果制作内、外蒙皮的内轮廓下料样板;设计角度对位工装精确控制内、外蒙皮铺层接缝,保证内、外蒙皮空间分布上的均匀性;利用蜂窝下料样板裁切蜂窝,保证蜂窝接缝拼接严密,避免蜂窝接缝间发泡胶对电厚度均匀性的影响;采用适合的固化成型参数分别成型内、外蒙皮,粘接蜂窝及嵌块,保证胶黏剂在曲面天线罩上分布的均匀性。在宽频带使用条件下,采用上述方法制作的天线罩电厚度均匀性好,幅度一致性可以控制在±0.1 dB以内,相位一致性可以控制在±3°以内,优于设计要求;在45 m/s和65 m/s模拟风速下,天线罩最大形变量满足设计要求。

In this paper,FiberSIM composite software was used to simulate the best lay-up method,and the results of software simulation were used to make the inner contour cutting samples of the inner and outer skin.The design angle alignment of the tooling accurately controls the inner and outer skin lay-up joints to ensure the uniformity of the space distribution of the inner and outer skin.The honeycomb cutting template is used to cut the honeycomb to ensure that the honeycomb joint is tightly stitched,which avoids the influence of styrofoam in the honeycomb joint on the electric thickness uniformity.Suitable curing parameters were used to shape the inner and outer skin,bonding honeycomb and block respectively to ensure the uniform distribution of adhesives on the curved radome.The radome made by the above method has good uniformity of electric thickness.The amplitude consistency can be controlled within±0.1 dB,and phase consistency can be controlled within±3°,which is better than the design requirements.Under the simulated wind speed of 45 m/s and 65 m/s,the maximum shape variable of the radome meets the design requirements.