某型雷达天线座旋变轴弯曲故障分析  

Analysis of the Bending Fault of Rotating Transformer Shaft of a Radar Antenna Pedestal

作　　者：程亮[1] 周俊宇 汪磊磊[1] 周建华[1] CHENG Liang;ZHOU Junyu;WANG Leilei;ZHOU Jianhua(Nanjing Research Institute of Electronics Technology,Nanjing 210039,China)

机构地区：[1]南京电子技术研究所,江苏南京210039

出　　处：《电子质量》2024年第3期65-69,共5页Electronics Quality

摘　　要：研究对象为机械扫描的多普勒体制机载雷达,采用平板裂缝天线和伺服传动系统实现雷达的波束扫描。天线座是伺服传动系统的关键组成部分。该型天线座已稳定生产多批次,工艺变更后进行了试生产,首件在随机振动验证试验中出现了方位旋变轴弯曲故障。在分析天线座组成和工作原理的基础上,通过开展仿真分析和试验验证,给出了故障产生的原因和机理,并采取了针对性的改进措施,有效地确保了后续批产天线座的质量稳定,对同类工程问题具有重要的参考价值。The research object is the mechanical scanning Doppler airborne radar,and the flat slot antenna and servo drive system are used to achieve beam scanning of the radar.The antenna pedestal is a key component of the servo drive system.This type of antenna pedestal has been stably produced in multiple batches,and trial production has been carried out after the process change.The first piece has a bending fault of the azimuth rotating transformer shaft during random vibration verification testing.On the basis of analyzing the composition and working principle of antenna pedestal,the cause and mechanism of the fault is given through simulation analysis and experimental verification,and targeted improvement measures are adopted,which effectively ensures the quality stability of antenna pedestal in subsequent batches and has important reference value for similar engineering problems.

关 键 词：机载雷达 天线座 旋转变压器 弯曲故障 试验验证 

分 类 号：TN959.73[电子电信—信号与信息处理]