旋翼天平原位校准的不确定度分析  

Uncertainty Analysis of Rotor Balance In-situ Calibration

作　　者：汤斌[1] 肖彬[1] 张文静 王建强[1] TANG Bin;XIAO Bin;ZHANG Wenjing;WANG Jianqiang(Changcheng Institute of Metrology&Measurement,Beijing 100095,China;China Helicopter Research and Development Institute,Jingdezhen 333001,China)

机构地区：[1]航空工业北京长城计量测试技术研究所,北京100095 [2]航空工业直升机设计研究所,江西景德镇333001

出　　处：《计测技术》2021年第2期194-199,共6页Metrology & Measurement Technology

基　　金：国家“十三五”技术基础科研项目(JSJL2016205B003)。

摘　　要：旋翼天平原位校准中,校准不确定度是最核心的技术指标。根据实际工况环境,研究了原位校准方法,研制了原位校准装置,重点介绍了机械设计结构,梳理和明确了不确定度来源,最后完成了旋翼天平的首次原位校准测试工作,并依照规范的方法进行了原位校准不确定度评价,结果表明:校准装置性能达标,各力值分量相对校准不确定度均优于0.1%,各力矩分量相对校准不确定度均优于0.3%。In the in-situ calibration of rotor balance,the calibration uncertainty is the most important technical index.First,according to the actual working condition and environment,the in-situ calibration method was studied.Then,the in-situ calibration device was developed.This paper mainly introduced the mechanical structure design,clarified the sources of uncertainty,Finally for the first time in-situ calibration test of the rotor balance was completed and for in-situ calibration uncertainty was evaluated in accordance with the standard method.The results showed that the calibration device performance reached the standard,the force component relative calibration uncertainty was less than 0.1%,and the torque component relative uncertainty of calibration was less than 0.3%.

关 键 词：旋翼天平 多分量气动力 原位校准 不确定度 加载头 

分 类 号：TB93[一般工业技术—计量学]