Jia Wei, Liu Weiliang, Zhao Zhongliang, Miao Lei, Xie Bin, Mi Peng, Yang Hongsheng, Wang Shumin, Chen Zhu. Study on technology of using flaky hinge moment balance for high-aspect-ratio wings based on external electric bridge correction method[J]. Journal of Experiments in Fluid Mechanics, 2017, 31(4): 59-63. DOI: 10.11729/syltlx20160107
Citation: Jia Wei, Liu Weiliang, Zhao Zhongliang, Miao Lei, Xie Bin, Mi Peng, Yang Hongsheng, Wang Shumin, Chen Zhu. Study on technology of using flaky hinge moment balance for high-aspect-ratio wings based on external electric bridge correction method[J]. Journal of Experiments in Fluid Mechanics, 2017, 31(4): 59-63. DOI: 10.11729/syltlx20160107

Study on technology of using flaky hinge moment balance for high-aspect-ratio wings based on external electric bridge correction method

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  • Received Date: June 28, 2016
  • Revised Date: December 14, 2016
  • In application, the precision and accuracy of the traditional flaky hinge moment balance for the high-aspect-ratio wings are not high enough. The problem is caused by the additional interference signal resulted from the aerofoil transformation. Aiming at enhancing the hinge moment wind tunnel test data's precision and accuracy for the high-aspect-ratio plane, the External Electric Bridge Correction Method (EEBCM) is explored. It is a new type of signal correction method using a set of signals to correct other signals, and its operational principle, steps and workflow are expounded in detail. Taking a wind tunnel test as an example:the external bridge is arranged on the wing, and the measurement results are compared with those without correction. The comparison shows that without the signal correction the balance measurement error is up to 54%, after the signal correction the measurement error is reduced to 6%, and the balance measurement accuracy has been improved. The present study provides a new idea for the application of the hinge moment balance to the high aspect ratio wings.
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