复合材料薄壁加筋抛物面天线仿真与优化
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北京卫星制造厂

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TB3

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Simulation and Optimization of Composite ParabolicAntenna With Stiffening Ribs
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    摘要:

    采用 Patran/ Nastran 有限元软件对复合材料薄壁加筋抛物面天线进行了建模和仿真分析。 重点
    分析了反射面铺层方式、加筋结构形式以及加强筋铺层对抛物面天线基频的影响。 分析结果表明:采用[0/
    45/ -45/90] s 铺层形式的反射面基频最高;增加径向和环向筋可大幅提高天线基频,其中加筋结构采用[0/30/
    90/ -30] s 铺层可进一步提高天线基频。 通过有限元分析确定了基频最佳的复合材料抛物面天线结构,为制备
    薄壁加筋抛物面天线提供了指导。

    Abstract:

    By using the finite element analysis(FEA) software Patran/ Nastran, the model of composite paraboli-
    c antenna was built and the structure properties were also simulated. The effects of reflector laying-up, and stiffening
    rib structure and laying-up on the antenna fundamental frequency were further analyzed. The analysis results show that
    the fundamental frequency of the antenna reflector using the [0/45/ -45/90] s laying-up is the highest. Fixing the cir-
    cumferential and radial ribs on the reflector can obviously improve the fundamental frequency. By using the [0/30/
    90/ -30] s laying-up in the stiffening ribs, the antenna fundamental frequency is further increased. The optimal struc-
    ture of composite parabolic antenna with stiffening ribs is determined by FEA, which can provide the guidance for the
    preparation of this composite parabolic antenna.

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引用本文

李 伟.复合材料薄壁加筋抛物面天线仿真与优化[J].宇航材料工艺,2015,45(6).

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  • 在线发布日期: 2016-11-28
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