天线反射器复合材料轻量化研究
发布时间：2019-06-15 13:33
【摘要】：采用树脂基复合材料代替铝合金材料研制反射器满足天线反射器减重要求,并建立反射器3D模型,通过有限元软件分别对铝合金以及复合材料反射器的模态进行分析。结果表明:在保持相同体积的条件下,复合材料反射器基频比铝合金反射器高出35.23%,减轻41.2%;为了保证星载反射器在服役环境中的精度,对两种材料反射器在-180~+80℃的热变形进行仿真。结果显示:采用[0/45/-45/90]2S铺层设计的反射器热变形量比铝合金反射器低94.25%;采用模压工艺研制的复合材料反射器型面精度为0.027 mm,满足使用要求,并且在服役环境下,复合材料型面精度稳定性优于铝合金反射器。
[Abstract]:The reflector is developed by using resin matrix composite material instead of aluminum alloy material to meet the weight loss requirements of antenna reflector, and the 3D model of reflector is established. The modes of aluminum alloy and composite reflector are analyzed by finite element software. The results show that the fundamental frequency of the composite reflector is 35.23% higher than that of the aluminum alloy reflector and 41.2% lower than that of the aluminum alloy reflector under the same volume. In order to ensure the accuracy of the space-borne reflector in the service environment, the thermal deformation of the two kinds of material reflector at-180 ~ 80 鈩，
本文编号：2500247
[Abstract]:The reflector is developed by using resin matrix composite material instead of aluminum alloy material to meet the weight loss requirements of antenna reflector, and the 3D model of reflector is established. The modes of aluminum alloy and composite reflector are analyzed by finite element software. The results show that the fundamental frequency of the composite reflector is 35.23% higher than that of the aluminum alloy reflector and 41.2% lower than that of the aluminum alloy reflector under the same volume. In order to ensure the accuracy of the space-borne reflector in the service environment, the thermal deformation of the two kinds of material reflector at-180 ~ 80 鈩，
本文编号：2500247
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