Journal of Korean Society for Quality Management (품질경영학회지)

Korean Society for Quality Management (한국품질경영학회)
권호 표지
DOI QR코드

DOI QR Code

A Study on Improvement Plan for LST-II LCM Cradle Damage

LST-II급 함정 함수 LCM 거치대 손상에 대한 개선방안 연구

  • 최상민 (국방기술품질원 함정2팀) ;
  • 백용관 (국방기술품질원 함정2팀) ;
  • 정영인 (국방기술품질원 함정3팀) ;
  • 황인하 (해군 전력평가단 함정기술처) ;
  • 백제성 (해군 전력평가단 함정기술처)
  • Received : 2018.09.28
  • Accepted : 2019.02.27
  • Published : 2019.03.31
Download PDF
⟨ Previous Next ⟩

Abstract

Purpose: LST-II is a special naval ship to carry out landing operations by transporting tanks, armored vehicles and military vehicles. Bad weather, maximum wave height of 4-5 m, caused damage to the LCM cradles while the LST-II No.O ship was moving to Thailand for training in February 2016. Methods: Based on the results of the field check, DTaQ conducted a study on the causes analysis and improvement measures. Results: The improvement plan that was derived was verified through a structural analysis and the improvement plan was applied to the follow-up ships. Conclusion: The improvement of LCM cradle has increased the safety of the crew and landing forces, and improved the operational efficiency.

Keywords

PJGOB9_2019_v47n1_139_f0001.png 이미지

Figure 1. Location of LCM in LST-II Ship

PJGOB9_2019_v47n1_139_f0002.png 이미지

Figure 2. Layout of LCM Cradle

PJGOB9_2019_v47n1_139_f0003.png 이미지

Figure 3. Status of LST-II LCM Cradle Damage

PJGOB9_2019_v47n1_139_f0004.png 이미지

Figure 4. Shape of LCM Landing Rail

PJGOB9_2019_v47n1_139_f0005.png 이미지

Figure 5. Lashing Gear Measures for LCM

PJGOB9_2019_v47n1_139_f0006.png 이미지

Figure 6. Status of LST-II O ship Lashing Gear

PJGOB9_2019_v47n1_139_f0007.png 이미지

Figure 7. Abroad Ship such as LST-II : (a) LPA 51 (b) L421

PJGOB9_2019_v47n1_139_f0008.png 이미지

Figure 7. Result on Structure Analysis of LCM Cradle Type

PJGOB9_2019_v47n1_139_f0009.png 이미지

Figure 8. Force Factor of LCM Lashing Gear

Table 1. Result on comparison Lashing Gear of ship

PJGOB9_2019_v47n1_139_t0001.png 이미지

Table 2. Improvement Measures for LCM Cradle

PJGOB9_2019_v47n1_139_t0002.png 이미지

Table 3. Improvement Shape of LCM Cradle for Landing Rail

PJGOB9_2019_v47n1_139_t0003.png 이미지

Table 4. Application Load Case of Structure Analysis

PJGOB9_2019_v47n1_139_t0004.png 이미지

Table 5. Result on Structure Analysis of LCM Cradle

PJGOB9_2019_v47n1_139_t0005.png 이미지

References

  1. Hyung Min Lee. 2013. "Analysis of development trends of large landing ships in abroad countries for multi-purpose missions." Korea Defense Industry Association. Defense & Technology 413:102-109.
  2. Ji-Hee Hwang, In-Kyu Park, and Weon-Cheol Koo. 2012. "Numerical Analysis of Ship Motions and Wave Loads Including Momentum Slamming." Journal of the Society of Naval Architects of Korea 49(2):109-115. https://doi.org/10.3744/SNAK.2012.49.2.109
  3. R.O.K Joint Chiefs of Staff. 2015. "Technical manual of Joint amphibiouis operation." KOREA: R.O.K Joint.
  4. The United States Army. 1999. "Naval Ships's Technical Manual Chapter 9120 Hull fittings." Lashing Gear and Access Closures, U.S : Army.