某车载展收天线风载作用下的结构分析  

Structural Analysis of Vehicle-borne Antenna under Wind Load

作　　者：徐琦玮 段静波 段聂静 白杨 XU Qiwei;DUAN Jingbo;DUAN Niejing;BAI Yang(Department of Engineering Mechanics,Shijiazhuang Tiedao University,Shijiazhuang 050043,China;95377 Troops of PLA,Wuhan 430030,China;The 54th Research Institute of CETC,Shijiazhuang 050081,China)

机构地区：[1]石家庄铁道大学工程力学系,石家庄050043 [2]中国人民解放军空军95377部队,武汉430030 [3]中国电子科技集团公司第五十四研究所,石家庄050081

出　　处：《机械工程师》2022年第7期22-24,29,共4页Mechanical Engineer

基　　金：河北省重点研发计划项目——科技协同创新专项“车载自动展收对数周期天线设计与研制”(21350401D)。

摘　　要：展收天线在展开后具有较低的面密度,天线结构在风载荷作用下的强度、刚度问题十分突出。文中采用ABAQUS大型商用有限元软件对某车载展收天线进行三维建模,并对天线结构进行静风载下的刚度、强度分析。然后,基于脉动风的基本理论和Davenport风压功率谱理论,在频域内对车载雷达天线结构迎风面施加风压功率谱,对车载天线结构进行了随机振动响应分析,得到天线在各工况下的应力变形云图。根据研究结果得出,天线结构在各工况下满足安全性能要求。The retractable antenna has a lighter areal density after deployment,and the strength and stiffness of the antenna structure under the action of wind load is very prominent.This paper uses ABAQUS large-scale commercial finite element software to build 3D model of a vehicle-mounted retractable antenna,and analyzes the rigidity of the antenna structure under static wind load.Based on the basic theory of pulsating wind and the Davenport wind pressure power spectrum theory,the wind pressure power spectrum is applied to the windward side of the vehicle radar antenna structure in the frequency domain,and the random vibration response analysis of the vehicle antenna structure is carried out.The stress deformation cloud map of the antenna under each working condition is obtained.According to the research results,the antenna structure meets the safety performance requirements under various working conditions.

关 键 词：车载天线 频域分析 静风载荷 脉动风载 

分 类 号：TN820[电子电信—信息与通信工程]