摘要
目前,国内外对于民用飞机大气数据系统的研究多集中于大气数据计算机和皮托管气动特性方面,而鲜有关于大气数据模块对大气数据系统提供有效数据的研究。为了研究大气数据模块对民用飞机压力管路和数据精度的影响,以机上管路和高度参数建立模型,对大气数据惯性基准系统中大气数据模块的组成结构、工作性能进行分析,得到CRJ200、G450和G550三种机型的大气测试数据,并找到造成不同误差范围的原因。结果表明:装有大气数据模块的G450和G550机型能够有效提高飞机的渗漏精度,实时反映民用飞机的大气数据信息;大气数据模块的使用对管道变形、渗漏以及数据精度等问题有重大改善,可为民用飞机大气数据系统设计提供参考。
At present,the research of the civil aircraft atmospheric data system in academic circles mostly focuses on the atmospheric data computer and the aerodynamic characteristics of pitot tube,however,there is little research on the effective data provided by the atmospheric data system in the specific atmospheric data module.The influence of atmospheric data module on the pressure pipeline and data precision of civil aircraft is studied in this paper.The structure and performance of the atmospheric data module in the atmospheric data inertial reference system are analyzed,the atmospheric test data on the three different types of aircraft(CRJ200,G450 and G550)are obtained,and the reason of the different error range is found out.By comparing the measured data of three different types of aircraft,it is concluded that G450 and G550 with air data module can improve the leakage accuracy of aircraft and reflect the air data of civil aircraft in real time.It is found that the analysis of atmospheric data module can greatly improve the problems of pipeline deformation,leakage and data precision,which can provide reference for the design of civil flight atmospheric data system.
作者
李建苏
陈才扣
LI Jiansu;CHEN Caikou(School of Information Engineering,Yangzhou University,Yangzhou 225127,China)
出处
《航空工程进展》
CSCD
2021年第2期150-156,共7页
Advances in Aeronautical Science and Engineering
基金
国家自然科学基金(60875004)。
关键词
民用飞机
大气数据
精度
误差
性能
civil aircraft
air data
accuracy
error
performance
