某车载雷达天线前端力学仿真分析  

Mechanical simulation analysis of the antenna front end of a vehicular radar based on ANSYS

作　　者：马泽泽 白雅洁 华福祥 李智[1] 王新亚 胡耀辉 MA Zeze;BAI Yajie;HUA Fuxiang;LI Zhi;WANG Xinya;HU Yaohui

机构地区：[1]西安电子工程研究所,陕西西安710100

出　　处：《现代机械》2025年第2期6-10,共5页Modern Machinery

摘　　要：以某车载雷达天线前端整体系统作为研究对象,以满足环境适应性要求和运输状态要求为目标,开展力学仿真研究:首先,利用有限元仿真软件对系统初始模型进行必要的简化,对雷达前端的细节特征进行处理,建立其简化的结构模型;其次,在此基础上对多种工况下的雷达天线前端进行极限条件下的静力学分析、模态分析和振动冲击分析,得到雷达结构的应变云图、变形云图和均方根应力云图。研究结果表明,在设备服役期间,系统的主要变形由结构本身自重导致,通过仿真结果做出正确的刚强度评判,为后续优化改进指明了方向,同时验证了最大变形和最大应力均满足各工况下的设计指标要求。In this paper,the overall system of the antenna front end of a vehicular radar is taken as the research object,and the mechanical simulation research is carried out with the goal of meeting the requirements for environmental adaptability and transportation state.Firstly,the finite element simulation software is used to simplify the initial model of the system,and the detailed features of the radar front end are processed to establish its simplified structural model.On this basis,the static analysis,modal analysis and vibration impact analysis of the antenna front end of the radar under various extreme working conditions are carried out,and the strain contours,deformation contours and root mean square stress contours of the radar structure are obtained.The results show that the main deformation of the system is caused by the self-weight of the structure during the service of the equipment.The correct stiffness evaluation is made through the simulation results,which points out the direction for the subsequent optimization and improvement,and verifies that the maximum deformation and maximum stress meet the design index requirements under various working conditions.

关 键 词：车载雷达 天线前端 有限元模型 力学仿真 

分 类 号：TN957.2[电子电信—信号与信息处理]