수중운동체 동체의 외압 구조 안정성에 관한 연구

우창민¹^{, *} ; 이기선² ; 최재엽² ; 장재웅²

1LIG 디펜스&에어로스페이스 미래전장기계융합연구소.1팀 선임연구원
2LIG 디펜스&에어로스페이스 미래전장기계융합연구소.1팀 수석연구원

Study on the Structural Stability of an Underwater Vehicle Body Under External Pressure

Chang-Min Woo¹^{, *} ; Gy-Sun Lee² ; Jae-Yeop Choi² ; Jae-Woong Jang²

1Research engineer, Mechanical R&D Lab, LIG Defense&Aerospace
2Chief research engineer, Mechanical R&D Lab, LIG Defense&Aerospace

Correspondence to: *Chang-Min Woo 333 Pangyo-ro, Bundang-gu, Seongnam-si, Gyeonggi-do, 13488, Republic of Korea Tel: +82-31-8038-0159 Fax: +82-31-8026-7084 E-mail: changmin.woo@ligdna.com

초록

본 논문에서는 수중운동체 동체의 외압이 가해질 때의 구조적 안정성을 평가하였다. 먼저, ASME BPVC Section VIII Division 1과 Division 2의 규정에 따른 동체 두께 값 및 보강재의 크기와 간격을 선정하고 이를 유한요소해석과 파괴역학을 이용하여 검토하였다. 이후 동일한 형상으로 제작하여 정수압시험기를 이용한 압력시험을 수행하여 구조 안정성을 분석하였다.

Abstract

This study evaluated the structural stability of an underwater vehicle body under external pressure. First, the body thickness and size and spacing of stiffeners were determined in accordance with ASME BPVC Section VIII Division 1 and Division 2, and these values were verified using static structural analysis and fracture mechanics. Subsequently, a body of the same configuration was fabricated, and a pressure test was conducted using a hydrostatic pressure tester to analyze its structural stability.

Keywords:

Underwater Vehicle Body, External Pressure, Static Structural Analysis, Hydrostatic Pressure Test, Fracture Mechanics

키워드:

수중운동체 동체, 외부압력, 정적 구조해석, 정수압시험, 파괴역학

References

Amit K. Jha, ‘An Optimum Design of Pressure Vessel Using ASME (BPVC) Sec-VIII Div-I, II and ASME (BPVC) Sec-II Part A,’ International Journal for Research in Applied Science and Engineering Technology, VOL. 8, NO. 5, 2020, pp. 1670-1682. [https://doi.org/10.22214/ijraset.2020.5272]
Blake W. Lance & Matthew David Carlson, ‘Compact Heat Exchanger Semi-Circular Header Burst Pressure and Strain Validation,’ in proceedings of ASME Turbo Expo 2019, Phoenix, AZ, June 2019. [https://doi.org/10.1115/GT2019-91772]
ASME, ASME Boiler and Pressure Vessel Code, Section VIII, Division 1, 2015.
ASME, ASME Boiler and Pressure Vessel Code, Section VIII, Division 2, 2019.
ASME, ASME Boiler and Pressure Vessel Code, Section II, Part D, 2019.