FD16风洞连续变攻角测力试验技术研究  

Research on Continuous Variable Angle of Attack Force Test Technology in FD16 Wind Tunnel

作　　者：孙日明[1] 叶瑞 陈勇富 王晓博 苗永茂 SUN Riming;YE Rui;CHEN Yongfu;WANG Xiaobo;MIAO Yongmao(China Academy of Aerospace Aerodynamic,Beijing 100074,China)

机构地区：[1]中国航天空气动力技术研究院,北京100074

出　　处：《自动化与仪器仪表》2023年第4期315-318,共4页Automation & Instrumentation

基　　金：基础性军工科研院所稳定支持项目(CAAA19921112121)。

摘　　要：FD16风洞为1.2 m口径暂冲式高超声速风洞,通常采用阶梯变攻角测力试验方式,试验得到的数据点稀疏,难以准确描述气动试验曲线细节特征,同时其单次风洞试验时间长,气源需求量大。通过攻角机构改造、多信号连续同步采集、数据滤波及修正等方法,建立了FD16风洞连续变攻角测力试验技术。对比试验结果表明,该项试验技术获得的气动力数据与常规阶梯方式具有很好的一致性,可以满足工程实用的要求。此外,该项技术能够减少25%吹风时间,提高经济效益的同时,现有真空引射运行方式也能够满足测力需求,解放了FD16风洞生产力。FD16 wind tunnel is aФ1.2 m hypersonic wind tunnel,which usually use step variable angle of attack for force test.Through the transformation of the angle of attack mechanism,multi-signal continuous synchronous acquisition,data filtering and correction,the FD16 wind tunnel’s continuous variable angle of attack force test technology was established.The comparative test results show that the aerodynamic data obtained by the test technique are in good agreement with the conventional step method,which can meet the requirements of engineering practice.In addition,the technology can reduce the blowing time by 25%and improve the economic efficiency.At the same time,the existing vacuum ejection operation mode can also meet the demand of force measurement and liberate the productivity of FD16 wind tunnel.

关 键 词：FD16 风洞试验 连续变攻角 测力 数据处理 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]