PMI泡沫夹层复合材料天线罩的振动特性分析  

The Analysis of Vibration Characteristics of PMI Foam-Core Sandwich Radome

作　　者：赵大娟 周正亮 戚洪强 Zhao Dajuan;Zhou Zhengliang;Qi Hongqiang(Sinoma Science &Technology Co.,Ltd.,Nanjing 210012)

机构地区：[1]中材科技股份有限公司

出　　处：《玻璃纤维》2019年第1期5-8,共4页Fiber Glass

摘　　要：泡沫夹芯结构复合材料可满足与天线罩透波和轻质高强的要求。采用ANSYS Workbench平台对某型天线罩进行模态分析,得到了PMI泡沫夹芯结构复合材料天线罩的固有频率振动特性分析,通过等加速度等效原则进行应力响应分析,结果表明天线罩的等效应力、变形的响应在1σ水平下较小,其结构在振动条件下是可靠的。A composite sandwich structure with PMI foam core can meet the requirements of radome for wave transparency, lightweight and high strength. This article uses ANSYS Workbench platform to make model analysis for a certain type of radome, obtaining the vibration characteristics at inherent frequency of PMI foam-core sandwich radome. Through the analyses on the acceleration response and equivalent stress response, it is shown that the equivalent stress and deformation response of radome at 1 sigma level is small ,and thus its structure under vibration is reliiable.

关 键 词：泡沫夹层结构 天线罩 振动特性 随机振动 

分 类 号：TB332[一般工业技术—材料科学与工程]