某飞机部件测力风洞试验天平研制与应用  

Development and Application of Balances for Aircraft Component Force Measurement in Wind Tunnel Experiment

作　　者：潘华烨[1,2] 米鹏[2] 张青川[1] 石罡 

机构地区：[1]中国科技大学近代力学系,安徽合肥230027 [2]中国空气动力研究与发展中心,四川绵阳621000

出　　处：《实验力学》2014年第6期719-726,共8页Journal of Experimental Mechanics

摘　　要：为满足某飞机部件高速风洞测力试验的需要,研制了四台部件测力天平,用来同时测量飞机机翼不同部件(全翼、外翼、翼尖弹、弹架组合)所受的气动载荷。由于是全模试验,天平的设计载荷不匹配,安装空间极度受限。设计时,全翼天平采用了机身中部安装方案、外翼天平与机翼加工成一体并且采用了新型多柱梁结构;翼尖弹天平和弹架组合天平采用了杆式天平方案。上述措施不仅满足了天平的测量需要,也确保了天平在模型中的安装位置以及测力的有效性。该部件测力试验已经在中国空气动力研究与发展中心FL-26风洞完成。试验结果表明,天平测力结果准确可靠,精准度高,达到了预期的目标。To meet the needs of high-speed wind tunnel testing of aircraft component force,four component force balances were developed used to simultaneously measure the aerodynamic loads of different components on aircraft wings（entire-wing,outer-wing,wing-tip missile,combination of missile and launcher）.Since the whole model experiment,the balance does not match the design load,the installation space is extremely limited.In design,the entire-wing balance is installed in the middle of airframe;the outer-wing balance and the airplane wing are processed into one,and a new multibeam structure is adopted;the wing-tip missile balance and the balance for combination of missile and launcher adopt rod-shaped scheme.These measures not only meet the measurement needs of balances,but also ensured the balance installation location and the force measuring.effectiveness.Component force measurement testing was completed in the FL-26 wind tunnel of China Aerodynamics Research and Development Center.Experimental results show that the balance force measurement is accurate,reliable,with high accuracy,and achieves desired requirements.

关 键 词：风洞天平 应变天平 部件测力试验 风洞试验 

分 类 号：TH715.112[机械工程—测试计量技术及仪器] V211.74[机械工程—仪器科学与技术]