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http://dx.doi.org/10.5139/JKSAS.2013.41.4.261

An Experimental Study on Flapping Motion of Forward Flight Condition used to Articulated Hub Rotor  

Ryi, Jae-Ha (Department of Aerospace Engineering, Chungnam National University)
Back, Dong-Min (STX Shipbuilding CO., LTD.)
Rhee, Wook (DAEWOO Shipbuilding and Marine Engineering CO., LTD.)
Choi, Jong-Soo (Department of Aerospace Engineering, Chungnam National University)
Song, Keun Woong (Rotor Team, Korea Aerospace Research Institute)
Publication Information
Journal of the Korean Society for Aeronautical & Space Sciences / v.41, no.4, 2013 , pp. 261-267 More about this Journal
Abstract
In this paper, wind tunnel test and analytical prediction are compared for result of flapping motion in helicopter forward flight condition. Tests were performed at low speed wind tunnel at Chungnam National University, test section of wind tunnel has 1.8 by 1.8 meter open-jet test section area. According to the results of measured data for aerodynamic performance of model rotor in forward flight. It has to observed the difference of analytical and measured results of power coefficient for fixed thrust coefficient. And calculated and measured data of helicopter rotor flapping angles in forward flight are compared for a model rotor in a wind tunnel. A test was conducted to verify the measured data of coning and lateral/longitudinal flapping angle with predicted values.
Keywords
Scaled Rotor; Forward Flight; Helicopter; Wind Tunnel Test; Articulated Hub;
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