비행구간 M&S를 이용한 수상함 발사 수중운동체의 입수 안정성 분석

현철¹^{, *} ; 김현승² ; 김창환¹ ; 이호진¹

1LIG넥스원 전장분석개발팀 수석연구원
2LIG넥스원 전장분석개발팀 선임연구원

Entry Stability Analysis of Underwater Vehicle Launched from Ships Using Flight Modeling and Simulation

Chul Hyun¹^{, *} ; Hyunseung Kim² ; Changhwan Kim¹ ; Hojin Lee¹

1Principal researcher, Dept. of Battlefield Analysis and Development, LIG Nex1
2Senior researcher, Dept. of Battlefield Analysis and Development, LIG Nex1

Correspondence to: ^*Chul Hyun Dept. of Battlefield Analysis and Development, LIG Nex1 333 Pangyo-ro, Bundang-gu, Seongnam-si, Gyeonggi-do, 13488, Republic of Korea Tel: +82-31-5178-4293 Fax: +82-31-5179-7086 E-mail: chul.hyun@gmail.com

초록

본 논문에서는 수상함에서 발사되어 일정 구간을 비행하고 수면으로 입수하는 수중운동체의 발사 후 비행 구간의 운동방정식을 도출하고 시뮬레이션을 수행하여 발사 조건별 수면 입수각을 분석해 보았다. 비행구간의 운동모델 시뮬레이션 결과는 시험 결과와 대체로 잘 매칭되었고, 발사 플랫폼의 롤 동요가 있더라도 충분한 비행시간만 확보된다면 수중 제어에 적합한 수면 입수 자세각을 얻을 수 있음을 예상할 수 있었다.

Abstract

This paper investigates the motion equations and simulates the post-launch flight trajectory of an underwater vehicle that is launched from a surface ship. The simulation results of the flight phase motion model matched well with the test results. It is anticipated that appropriate water entry angles can be achieved for underwater control even if there is roll oscillation of the launch platform, as long as sufficient flight time is secured.

Keywords:

Autonomous Underwater Vehicle, Hydrodynamic Coefficient, Stabilizer, Entry Stability

키워드:

자율수중운동체, 유체력계수, 비행자세안정장치, 입수 안정성

References

Y. I. Park, D. K. Ryu, S. S. Kim, and M. H. Lee, “Design and Performance Evaluation of Controller for Unstable Motion of Underwater Vehicle after Water Entry,” Journal of the Korean Society for Precision Engineering, Vol.16, No.6, pp. 166-175, 1999.
C. Hyun, H. S. Kim, S. Lee, and H. Lee, “Tuning of Roll Damping Coefficient of Underwater Vehicle Using Sea Trial Results,” Journal of the KNST, Vol. 6, No. 2, pp. 207-211, 2023. [https://doi.org/10.31818/JKNST.2023.06.6.2.207]
T. Lee and S. Kwon, “A Study on Practical PMM Test Technique for Ship Maneuverability Using System Identification Method”, Journal of Korean Society of Coastal and Ocean Engineers, Vol. 16, No. 6, pp. 25-31, 2002.
E. L. Fleeman, Missile Design and System Engineering, AIAA, 2012. [https://doi.org/10.2514/4.869082]