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http://dx.doi.org/10.5139/JKSAS.2018.46.4.297

Effects of IR Reduction Design on RCS of UCAV  

Song, Dong-Geon (School of Mechanical and Aerospace Engineering and ReCAPT, Gyeongsang National University)
Yang, Byeong-Ju (School of Mechanical and Aerospace Engineering and ReCAPT, Gyeongsang National University)
Myong, Rho-Shin (School of Mechanical and Aerospace Engineering and ReCAPT, Gyeongsang National University)
Publication Information
Journal of the Korean Society for Aeronautical & Space Sciences / v.46, no.4, 2018 , pp. 297-305 More about this Journal
Abstract
The role of UCAV is to carry out various missions in hostile situations such as penetration and attack on the enemy territory. To this end, application of RF stealth technology is indispensable so as not to be caught by enemy radar. The X-47B UCAV with blended wing body configuration is a representative aircraft in which modern RCS reduction schemes are heavily applied. In this study, a model UCAV was first designed based on the X-47B platform and then an extensive RCS analysis was conducted to the model UCAV in the high-frequency regime using the Ray Launching Geometrical Optics (RL-GO) method. In particular, the effects of configuration of UCAV considering IR reduction on RCS were investigated. Finally, the effects of RAM optimized for the air intake of the model UCAV were analyzed.
Keywords
Unmanned Combat Aerial Vehicle; Radar Cross Section; Geometrical Optics; Radar Absorbing Material;
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Times Cited By KSCI : 3  (Citation Analysis)
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1 Lee, W. J., Baek, S. M., Choi, K. S., and Joo, Y. S., "A Study on RAS Application for Stealth Aircraft," Proceeding of The Korean Society for Aeronautical and Space Sciences Spring Conference, April 2016, pp. 130-131.
2 Lee, W. J., Choi, K. S., Baek, S. M., and Joo, Y. S., "A Study on the EM Wave Absorber with Directive Periodic Pattern for Stealth Aircraft," Proceeding of The Korean Society for Aeronautical and Space Sciences Fall Conference, November 2015, pp. 122-125.
3 Park, M. J., Lee, D. H., Myong, R. S., and Cho, T. H., "An Integrated System for Aerodynamic, Structural, and RF Stealth Analysis of Flying Vehicles," Journal of the Korean Society for Aeronautical and Space Sciences, Vol. 36, No. 1, 2008, pp. 86-91.   DOI
4 Ahmed K., Electromagnetic Waves Propagation in Complex Matter, 1 st Ed., InTech., 2011.
5 FEKO Comprehensive Electromagnetic Solutions, User's Manual, Suite 14.0, Altair, 2015.
6 An, S. Y., Kim, W. C., and Oh, S. H., "A Study on the Effect of Engine Nozzle Configuration on the Plume IR Signature," Journal of the Korean Society for Aeronautical and Space Sciences, Vol. 40, No. 8, 2012, pp. 688-694.   DOI
7 Gama, A. M., Rezende, M. C., and Dantas, C. C., "Dependence of Microwave Absorption Properties on Ferrite Volume Fraction in MnZn Ferrite/Rubber Radar Absorbing Materials," Journal of Magnetism and Magnetic Materials, Vol. 323, 2011, pp. 2782-2785.   DOI
8 Musal, H. M. Jr., and Smith, D. C., "Universal Design Chart for Specular Absorbers," IEEE Transactions on Magnetics, Vol. 26, No. 5, 1990, pp. 1462-1464.   DOI
9 Jo, Y. M., and Choi, S. I., "Shape Optimization of UCAV for Aerodynamic Performance Improvement and Radar Cross Section Reduction," Journal of Computational Fluids Engineering, Vol. 17, No. 4, 2012, pp. 56-68.   DOI
10 Myong, R. S., and Cho, T. H., "Development of a Computational Electromagnetics Code for Radar Cross Section Calculations of Flying Vehicles," Journal of the Korean Society for Aeronautical and Space Sciences, Vol. 33, No. 4, 2005, pp. 1-6.   DOI
11 Son, M. H., "Core Technologies of High-Performance Tactical Aircraft; Combat Survivability and Stealth Technology," The Journal of Aerospace Industry, Vol. 75, 2012, pp. 57-97.
12 Knott, E. F., Shaeffer, J. F., and Tuley, M. T., Radar Cross Section, 2 nd Ed., SciTech Publishing Inc., Boston, 2004.
13 Mahulikar, S. P., Prasad, H. S. S. and Rao, G. A., "Infrared Signature Studies of Aerospace Vehicles," Progress in Aerospace Sciences, Vol. 43, 2007, pp. 218-245.   DOI
14 Johnston, L. J., "Predicting the Maximum-Lift Performance of Unmanned Combat Air Vehicle Planforms Using the Euler Equations," Proceeding of the EUCASS 2013 Conference, 2013, pp. 1-4.
15 Zikidis, K., Skondras, A., and Tokas, C., "Low Observable Principles, Stealth Aircraft and Anti-Stealth Technologies," Journal of Computations & Modelling, Vol. 4, No. 1, 2014, pp. 129-165.