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http://dx.doi.org/10.5139/JKSAS.2012.40.2.165

The Study on Experimental Measurement Method of Hinge Moment Acting on Control Surface of Air Vehicle  

Park, Jong-Min (국방과학연구소 7본부 2부)
Chung, Sang-Joon (국방과학연구소 7본부 2부)
Publication Information
Journal of the Korean Society for Aeronautical & Space Sciences / v.40, no.2, 2012 , pp. 165-170 More about this Journal
Abstract
This paper contains the test method to obtain aerodynamic hinge moments acting on the control surface of air vehicle wing. During the flight, hinge moments make difference between actual control surface angle and control angle which is measured by sensor of actuator. The hinge moments can be obtained by using this difference. Static ground load test and calibration test were conducted to obtain torsional stiffness of control surface actuation system. This results are used to calculate hinge moments. In addition, the mechanical errors of actuation system such as slip angle of mounting point and backlash could be estimated. Using flight test results, this experimental measurement method of hinge moment acting on control surface is conducted. The results of this method are similar to those of numerical simulation method, and the validity of this method is proved.
Keywords
control surface hinge moments of aerodynamic load; mechanical error measurement of control surface;
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