实验流体力学Issue(4)：49-53,5.DOI:10.11729/syltlx20130018
高超声速风洞多天平测力试验技术研究
Technique investigation on force test with multi-balance in hypersonic wind tunnel
舒海峰 1许晓斌 1孙鹏1
作者信息
- 1. 中国空气动力研究与发展中心，四川 绵阳 621000
- 折叠
摘要
Abstract
The aerodynamic characteristics of aerocrafts can be acquainted with multi-balance which also helps to reduce the cost of experiments and raise efficiency.The force test technique with multi-balance was quite mature in transonic and supersonic wind tunnel.However,it was not widely used in hypersonic wind tunnel because of the small model scale and the high tempera-ture.In order to meet the need for project development,the force test technique with multi-bal-ance investigation was carried out in Ф1m hypersonic wind tunnel of CARDC.Three controlling rudders of the same aerocraft were chosen as research objects.The axes of hinge-moment bal-ances and the rotation axes of the measured rudders were vertical.The rational miniaturized six component balance configuration style was adopted.For example,the sizes of the elevator bal-ance’s measuring elements were 20mm×20mm×25mm.The calibration method of the balances was investigated.The calibration results had shown that the static calibration accuracy of the main components of balances was less than 0.7%;the zero excursion clearly reduced after the temperature compensation methods were used;the integral design of balance and angle transfor-mation device improved the accuracy of orientation and installation in effect.The wind tunnel ex-periment with Ma=5 was performed and the results of typical conditions had been given.The ex-perimental results indicated that force test technique with multi-balance could be used in hyper-sonic wind tunnel aerodynamic test.关键词
高超声速风洞/铰链力矩天平/方向舵/升降舵/气动力测量Key words
hypersonic wind tunnel/hinge moment balance/rudder/elevator/aerodynamic force measurement分类
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舒海峰,许晓斌,孙鹏..高超声速风洞多天平测力试验技术研究[J].实验流体力学,2014,(4):49-53,5.
