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Conceptual Design of Composite Sandwich Structure Submarine Radome

机译:复合夹层结构潜艇天线罩的概念设计

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摘要

Radomes are usually constructed from sandwich structures made of materials which usually have a low dielectric constant so that they do not interfere with electromagnetic waves. Performance of the antenna is increased by the appropriate assortment of materials enabling it to survive under marine applications, and it depends on composite strength-to-weight ratio, stiffness, and resistance to corrosion. The design of a sandwich core submarine radome greatly depends on the material system, number of layers, orientation angles, and thickness of the core material. In this paper, a conceptual design study for a sandwich core submarine radome is carried out with the help of finite element analysis (FEA) using two unidirectional composite materials—glass fiber reinforced polymer (GFRP) and carbon fiber reinforced polymer (CFRP)—as a skin material and six different core materials. Conceptual designs are obtained based on constraints on the composite materials’ failure, buckling, and strength. The thickness of the core is reduced under constraints on material and buckling strength. Finite element analysis software ANSYS WORKBENCH is used to carry out all the simulations.
机译:天线罩通常由夹层结构构成,该夹层结构由通常具有低介电常数的材料制成,从而不会干扰电磁波。适当种类的材料可以提高天线的性能,使其能够在海洋应用中生存,并且取决于复合材料的强度重量比,刚度和耐腐蚀性。夹层芯海底天线罩的设计在很大程度上取决于材料系统,层数,取向角和芯材的厚度。在本文中,借助于有限元分析(FEA),使用两种单向复合材料-玻璃纤维增​​强聚合物(GFRP)和碳纤维增强聚合物(CFRP)-进行了夹心式海底天线罩的概念设计研究。皮肤材料和六种不同的核心材料。基于对复合材料的破坏,屈曲和强度的限制,获得了概念设计。在材料和屈曲强度的约束下,减小了芯的厚度。有限元分析软件ANSYS WORKBENCH用于执行所有模拟。

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