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선체외판의 변형이 수상함 RCS에 미치는 영향 연구

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

  • 김국현 (동명대학교 조선공학과) ;
  • 조대승 (부산대학교 조선해양공학과)
  • Kim, Kook-Hyun (Department of Naval Architecture, Tongmyong University) ;
  • Cho, Dae-Seung (Department of Naval Architecture and Ocean Engineering, Pusan National University)
  • 투고 : 2011.05.09
  • 심사 : 2011.10.17
  • 발행 : 2011.12.20

초록

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.

키워드

참고문헌

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피인용 문헌

  1. Development of Radar Cross Section Analysis Program for Complex Structures vol.20, pp.4, 2014, https://doi.org/10.7837/kosomes.2014.20.4.435