某型螺旋桨遥测系统接收天线轻量化设计方法  

Lightweight design method for the receiving antenna of a propeller telemetry system

作　　者：王烨 牛宏伟[1] 翟亚浩 WANG Ye;NIU Hongwei;ZHAI Yahao

机构地区：[1]中国飞行试验研究院技术中心发动机所,陕西西安710089

出　　处：《现代机械》2024年第4期22-26,共5页Modern Machinery

摘　　要：某型螺旋桨遥测系统的主要功能是测量螺旋桨在飞行中的振动应力和桨叶角,遥测系统接收天线安装在发动机短舱内静止部件上,集成了射频线圈和感应线圈。课题组根据发动机和短舱具体结构设计接收天线,在初始构型中接收天线安装在减速器机匣上,连接牢固,但重量高达10 kg,不符合设计单位的要求。通过力学模型分析,提出了接收天线轻量化设计方法,重新选择安装位置,优化悬臂长度、截面弯曲刚度、螺栓布局形式和材料,使接收天线总重量降低至1.5 kg,并进行随机振动仿真分析,各项指标满足装机要求,可为发动机上环形天线类零件设计提供经验参考。The main function of the propeller telemetry system is to measure the vibration stress and blade angle of the propeller in flight.The receiving antenna of the telemetry system is mounted on the stationary components in the engine nacelle,and integrates RF coils and induction coils.The receiving antenna was designed according to the specific structure of the engine and the nacelle.In the initial scheme,the receiving antenna was installed on the reducer casing and firmly connected.But the weight of the antenna was 10 kg,which could not meet the design requirements.Based on the mechanical model analysis,the lightweight design method for the receiving antenna was proposed.The installation position was re-selected,the cantilever length,section bending stiffness,bolt layout and material were optimized,and the total weight of the receiving antenna was reduced to 1.5 kg.The random vibration analysis was carried out,and all the indexes met the installation requirements.This study can provide experience reference for the design of ring antenna parts on the engine.

关 键 词：螺旋桨 遥测系统 接收天线 质量 悬臂长度 弯曲刚度 

分 类 号：V214.19[航空宇航科学与技术—航空宇航推进理论与工程]