带横向喷流效应飞行器的虚拟飞行天平测力装置研制与应用  

Development and application of virtual flight balance measurement device for aircraft with lateral jet

作　　者：苗磊 赵忠良 李浩 徐志伟 周米文 MIAO Lei;ZHAO Zhongliang;LI Hao;XU Zhiwei;ZHOU Miwen(High Speed Aerodynamics Institute,China Aerodynamics Research and Development Center,Mianyang Sichuan 621000,China)

机构地区：[1]中国空气动力研究与发展中心高速空气动力研究所,四川绵阳621000

出　　处：《航空动力学报》2024年第6期10-19,共10页Journal of Aerospace Power

摘　　要：为满足某带横向喷流效应飞行器的虚拟飞行风洞试验需求,采用两台独立的4分量天平、传动轴及支撑横梁等组成测力装置同时分别测量前/后两段模型的气动载荷。通过有限元软件计算每台天平的灵敏度,传动轴对天平的干扰以及高压气体对天平的影响,结果表明:传动轴对天平力分量基本无影响,对俯仰力矩干扰约2.5%,对偏航力矩干扰约8%,压力对前天平的影响小于2%,对后天平的影响小于9%。基于每台天平的静态校准公式,生成了适用于测力装置的气动载荷计算方法,通过模拟加载验证了计算方法的准确性。最后,通过风洞试验检验了带横向喷流效应的虚拟飞行天平测力装置的整体性能。静态校准和风洞试验数据表明:静态校准数据与有限元分析结果基本一致,测力装置性能稳定、测值准确,满足风洞虚拟飞行试验研究要求。To meet the requirements of virtual flight wind tunnel testing for aircraft with lateral jet,the measurement device composed of two independent four-component wind tunnel balances,transmission shaft and supporting crossbeam,etc,was applied to respectively measure the aerodynamic loads of the front/rear two parts model at the same time.By finite element software,the sensitivity of each balance,the interference of transmission shaft and the influence of high-pressure gas on balance were analyzed.The results showed that the transmission shaft had little effect on the force component of the balance,the interference on the pitch moment was about 2.5%and that on the yaw moment was 8%,the impact of pressure on the front balance was less than 2%and that on the rear balance was less than 9%.Based on the static calibration formula of each balance,an aerodynamic load calculation method suitable for measurement device was generated.The correctness of the method was verified through simulated loading.Finally,the performance of the measurement device for aircraft with lateral jet was verified through the wind tunnel tests.The results of static calibration and wind tunnel tests showed that static calibration data were consistent with finite element analysis results,the measurement device had stable performance and accurate measurement values,so it can meet the requirements of virtual flight test research.

关 键 词：虚拟飞行 横向喷流 风洞天平 有限元分析 静态校准 风洞试验 

分 类 号：V211.73[航空宇航科学与技术—航空宇航推进理论与工程]