某机载雷达发射座架振动数值分析  

Vibration Numerical Analysis of the Transmitter Pedestal of an Airborne Radar

作　　者：杜振勇[1] 时社萍[1] 梁震涛[1] 

机构地区：[1]南京电子技术研究所,江苏南京210039

出　　处：《电子机械工程》2015年第4期1-4,共4页Electro-Mechanical Engineering

摘　　要：采用数值分析方法对某机载雷达中发射座架进行随机振动响应研究,得到了发射座架的模态和应力分布云图。其上定位销的最大应力已经处于危险状态,根据应力分布结果,提出了台阶式定位销改进方案,并对新方案的发射座架进行了数值分析。研究结果表明,采用新式定位销的发射座架可以满足某雷达的隔振要求。The random vibration response of the transmitter pedestal used in an airborne radar is studied based on numerical analysis method.The modal and stress distribution of the transmitter pedestal are obtained.The result shows that the positioning pins on the transmitter pedestal are in risky state.A new improvement design of step-type positioning pin is proposed according to the stress distribution.Numerical analysis shows that the new positioning pins can satisfy the vibration isolation requirement of the radar.

关 键 词：雷达 随机振动 数值分析 

分 类 号：TB535[理学—物理]