Development of a single-fixed sheet hinge moment balance with axial force measurement

Wang Shumin; Pan Huaye; Wang Chao; Ma Tao

doi:10.11729/syltlx20160003

Volume 30 Issue 6

Apr. 2021

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Journal of Experiments in Fluid Mechanics > 2016 > 30(6): 86-90. > DOI: 10.11729/syltlx20160003

Wang Shumin, Pan Huaye, Wang Chao, Ma Tao. Development of a single-fixed sheet hinge moment balance with axial force measurement[J]. Journal of Experiments in Fluid Mechanics, 2016, 30(6): 86-90. DOI: 10.11729/syltlx20160003

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Development of a single-fixed sheet hinge moment balance with axial force measurement

China Aerodynamics Research and Development Center, Mianyang Sichuan 621000, China

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Received Date: January 24, 2016
Revised Date: July 20, 2016

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Abstract

Restricted by the condition of the test model and the wind tunnel balance structure, it's hard to measure the aerodynamic loads of the control flap accurately by using the normal sheet hinge moment balance. The main reason is there is no axial force measurement on the typical hinge moment balance, and therefore the interference due to the axial force can't be avoided. Moreover, The data quality of the balance measurement is depressed seriously due to the wing flexibility. To solve this problem, we put efforts to optimize the balance structure at the High Speed Aerodynamic Institution of CARDC. We designed a single-fixed sheet hinge moment balance with axial force measurement, which has been used in a certain airplane model hinge moment test successfully. The results of the balance calibration and the test data show that this balance can measure the axial force effectively, almost eliminate the influence of the wing flexibility, and increase the matching characteristic of the forces by decreasing additional moment. Using this type of hinge moment balance can increase the quality of the test data efficiently.
- hinge moment,
- wind tunnel balance,
- aspect ratio,
- axial force

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