Browse > Article
http://dx.doi.org/10.3744/SNAK.2011.48.6.509

Study on Effect of Shell Plate Deformation to Radar Cross Section of Warship  

Kim, Kook-Hyun (Department of Naval Architecture, Tongmyong University)
Cho, Dae-Seung (Department of Naval Architecture and Ocean Engineering, Pusan National University)
Publication Information
Journal of the Society of Naval Architects of Korea / v.48, no.6, 2011 , pp. 509-515 More about this Journal
Abstract
The radar cross section (RCS) of warships is a crucial design factor to improve the survivability in terms of not only low observablity of the platform but also efficiency of on-board sensors and jamming devices against enemy threat. In design stage, numerical models are generated in order to quantitatively assess RCS, of which hull surfaces are modeled with the finite number of the flat plate. However, in practice, hull surfaces are permanently deformed by various kinds of loads such as winds and ocean waves faced during operations. In this paper, the effect of these shell plate deformation to RCS is numerically investigated. For this purpose, RCS calculations are carried out for various kinds of numerical models, such as single plates, dihedrals, large-sized undulate plates, and virtual warships, with some extent of permanent deformation. The results are compared with those of corresponding models without permanent deformation. It is concluded that the permanent deformation of hull surface highly influences RCS characteristics of warships, therefore they should be considered in the RCS analysis.
Keywords
Radar cross section; Shell plate deformation; Numerical analysis model;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
연도 인용수 순위
1 Kim, K. Kim, J.H. & Cho, D.S., 2005. RCS Analysis of Complex Structures Using Object Precision Method. Journal of the Society of Naval Architects of Korea, 42(2), pp.159-164.   과학기술학회마을   DOI   ScienceOn
2 Kim, K. Cho, D.S. & Kim, J.H., 2007. Broad-band Multi-layered Radar Absorbing Material Design for Radar Cross Section Reduction of Complex Targets Consisting of Multiple Reflection Structures. Journal of the Society of Naval Architects of Korea, 44(4), pp.445-450.   과학기술학회마을   DOI   ScienceOn
3 Knott, E., 1993. Radar Cross Section Measurement. Van Nostrand Reinhold: New York.
4 Leissa, A.W., 1969. Vibration of Plates. NASA Report No SP-160.
5 Park, C. Cho, Y. Park, D. & Ahn, J., 2006. A Study on Ship Shape Design Optimization for RCS Reduction Using Taguchi Method. Journal of the Society of Naval Architects of Korea, 43(6), pp.693-699.   과학기술학회마을   DOI   ScienceOn
6 Asada, N., 2003. A study of the effect on Radar Cross Section (RCS) due to "Starved horse patterns". M.Sc Thesis, Royal Institute of Technology.
7 Barsoum, R.G.S., 2003. The Best of Both Worlds: Hybrid Ship Hulls Use Composites & Steel. Advanced Materials and Processes Technology Information Analysis Center (AMPTIAC) Quarterly, 7(3), pp.55-61.