粘接胶层对天线罩冲击动态响应的影响

Effect of adhesive layer on impact dynamic response of radome

为了分析冲击环境下粘接胶层对天线罩结构冲击响应的影响,建立了天线罩结构计算数学模型,并基于有限元方法分析了天线罩粘结胶层的存在性、可压缩性以及胶层的厚度对天线罩冲击响应的影响。结果表明:胶层的存在和可压缩特性降低了弹性波波速,进而延缓了天线罩的响应速度;胶层的厚度增加在不改变传递速度的情况下延长了传递时间,进而导致天线罩的响应速度变慢。

For analyzing the impact response of the adhesive layer on radome under an impact environment,a mathematical model for radome structure was established,and the effects of the existence,compressibility and thickness of the adhesive layer were analyzed based on the finite element method.The results show that the existence and compressibility reduces the elastic wave velocity and delays the response speed of radome,and that the increase of the thickness prolongs the transition time without changing the speed,which leads to a slower-speed response.