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http://dx.doi.org/10.5139/JKSAS.2018.46.8.671

Aerodynamic Noise Prediction of a Helicopter Rotor Blade for the Flight Conditions of Approach and Flyover  

Wie, Seong-Yong (Korea Aerospace Research Institute)
Kang, Hee Jung (Korea Aerospace Research Institute)
Kim, Deog-Kwan (Korea Aerospace Research Institute)
Publication Information
Journal of the Korean Society for Aeronautical & Space Sciences / v.46, no.8, 2018 , pp. 671-678 More about this Journal
Abstract
Helicopter noise prediction is an essential process for developing low noise helicopter technology. In this paper, the noise prediction method is developed using the helicopter integrated performance analysis program CAMRAD-II and in-house noise analysis code. In addition, the analytical technique was verified by analyzing blade-vortex interaction noise, which is the biggest cause of helicopter noise. In order to predict the actual helicopter noise, the noise analysis was performed for the flyover and approach condition, which is the standard measurement condition of the International Civil Aviation Organization (ICAO). Finally, we confirmed the suitability of the analytical method through comparison and analysis with the flight test results.
Keywords
Helicopter noise; Certification; ICAO; Aerodynamic noise;
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  • Reference
1 Wie, S. Y., and Kang, H. J., "Noise Characteristics of Main rotor blade in the flyover, approach, takeoff flight conditions," Proceeding of the 2016 KSAS Fall Conference, 2016.
2 Lim, J. W., Boyd, D., Kim, D. H., Jung, S. N., You, Y. H., Tananbe, Y., Baily, J., Lienard, C. and Delrieux, Y., "Aeromechanical Evaluation of Smart-Twisting Active Rotor," 40th European Rotorcraft Forum, 2014.
3 Wie, S. Y., Kim, D. H, Kang, H. J., Chung, K. H., and Hwang, C., "Development of the Helicopter Noise Prediction Code and its Applications," Proceeding of the 2014 KSNVE Fall Conference, 2014.
4 Evan A., F., "Aerodynamic Design of the Sikorsky S-76 SPIRITTM Helicopter," Journal of the American Helicopter Society, Vol. 24, No. 3, 1979, pp.11-19.   DOI
5 Jepson, D., Moffitt, R., Hilzinger, K., and Bissell, J., "Analysis and Correlation of Test Data From an Advanced Technology Rotor System," NASA CR-3714, 1983.
6 Kottapalli, S., and Leyland, J., "Analysis of Open Loop Higher Harmonic Control at High Airspeeds on a Modern Four-Bladed Articulated Rotor," NASA TM-103876, 1991.
7 Sitaraman, J., "CFD Based Unsteady Aerodynamic Modeling for Rotor Aeroelastic Analysis," Ph.D Dissertation, University of Maryland, 2003.
8 Leishman, J. G., Principles of Helicopter Aerodynamics, 2nd Ed., CAMBRIDGE UNIVERSITY PRESS, 2006.
9 Mosher, M., "Acoustic Measurements of a Full-Scale Rotor with Four Tip Shapes," NASA TM, 1984
10 Wie, S. Y., and Kang, H. J., "Aero-noise analysis for S76 helicopter," Proceeding of the 2015 SASE Fall Conference, 2015.
11 International Civil Aviation Organization Annex 16, Environmental Protection volume 1 Aircraft Noise, 2011.