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http://dx.doi.org/10.5139/JKSAS.2013.41.11.855

Modeling of a Rotor System Incorporating Active Tab and Analysis of BVI Noise Reduction Characteristics  

Kim, Do-Hyung (Korea Aerospace Research Institute)
Kang, Hee Jung (Korea Aerospace Research Institute)
Wie, Seong-Yong (Korea Aerospace Research Institute)
Kim, Seung-Ho (Korea Aerospace Research Institute)
Publication Information
Journal of the Korean Society for Aeronautical & Space Sciences / v.41, no.11, 2013 , pp. 855-864 More about this Journal
Abstract
Active tab is one of the promising technology for the BVI (blade-vortex interaction) noise reduction, and analysis of noise reduction performance is very important phase of the technology development. For the purpose of analysing the performance of noise reduction using active tab, CAMRAD II model for a model-scale rotor system was constructed utilizing structural design result and airfoil aerodynamic data generated by CFD (computational fluid dynamics) calculation. HHC strategy was applied to descent flight condition and air-load was calculated by CAMRAD II then variations of BVI noise was calculated by in-house program. Calculation result with respect to tab length and control phase changes showed BVI noise could be reduced by -3.3dB.
Keywords
Blade-Vortex Interaction; Rotor Noise; Active Tab; Higher Harmonic Control;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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