铰链力矩天平技术及其在风洞实验中的应用

本文介绍了全机半模型铰链力矩天平技术的研究;介绍了七台铰链力矩天平和四套专用校正装置的设计和研制;天平的静校及其在 FD-09低速风洞进行的波音707模型的铰链力矩实验。通过实验证明:在一个模型上同时应用多台铰链力矩天平进行风洞实验的技术,有效地节省了试验时间和经费,提高了风洞实验效率。实验结果表明了铰链力矩天平组的设计符合风洞实验的要求,静校精度较高,动校结果可靠。

EXFERIMENTAL TECHNIQUES OF HINGE-MOMENT BALANCES AND APPLICATIONS IN WIND TUNNEL

This paper introduces three parts.The study on the hingemoment balance technoiogy of half model of complete aircraft.Thedesign,research of seven sets of hinge moment balances and four sets ofspecial calibration devices and is tatic calibration of balance.The lastpart is its applications to BOEING 707 model hinge moment test in FD-09 Low-speed tunnel.Tests prove that,the wind tunnel test technoiogy of applying fivesets of hinge moment balances simultaneously on a single model effective-ly saves testing time and cost,with test efficiency improved.Testresults prove that, the design of hinge moment balance group conformswith the requirements of hinge moment test on half model in Low-speedwind tunnel,with static calibration accuracy higher and dynamic cali-bration results reliable.The resuits from wind tunnel tests are highly appreciated by depart-ments concerned.By comparing the experimental data from FD-09 windtunnei with that from documents,the reliabilty degree of the laterrefrence is,recognized,so this technology is ofimportant refrence valueto the accuracy improvement of hinge moment tests of half model indomestic Low-speed wind tunneis.