Structural Safety Evaluation of Marine Loading Arm Using Finite Element Analysis

유한요소해석을 이용한 해양 로딩암의 구조안전성 평가

Song, Chang Yong;Choi, Ha Young;Shim, Seung Hwan

  • Received : 2012.10.11
  • Accepted : 2013.02.14
  • Published : 2013.02.28


This paper presents a structural design review of a marine loading arm used for the fluid transfer of a liquid cargo from a ship or offshore plant. The marine loading arm is installed on a ship, offshore plant, or jetty in order to load or unload liquid cargo such as crude oil, liquefied natural gas (LNG), chemical products, etc. The structural design of this marine loading arm is obliged to comply with the design and construction specifications regulated by the oil companies and international marine forum (OCIMF). In this paper, the structural safety of the initial design for the marine loading arm is evaluated for the design load conditions required by various operational modes. The evaluated results based on a finite element analysis (FEA) are reviewed in relation to the OCIMF specifications.


Marine loading arm;Fluid transfer;Design load conditions;Operation modes;Finite element analysis


  1. FMC Technologies, 2005. Chiksan Marine Loading Arms. [Online] Available at: [Accessed 1 Oct. 2012].
  2. International Chamber of Shipping, 1996. International Safety Guide for Oil Tankers and Terminals (ISGOTT). Hyperion Books, New York.
  3. ASCE - American Society of Civil Engineers, 2005. Minimum Design Loads for Buildings and Other Structures - ASCE7. ASCE, Virginia.
  4. ASME - American Society of Mechanical Engineers, 2004. Chemical Plant and Petroleum Refinery Piping Code Requirements. ASME, New York.
  5. Choi, H.S., Do, C.H., Lee, S.K., 2012. Study on Parameters for Optimum Design of Integrated Subsea System. Journal of the Society of Naval Architects of Korea, 49(4), 340-349.
  6. Lee, K.Y., Choi, H.S., Lee, E.J., Yoon, T.S., 2011. Future Vision through NL Tensioner Technology Developmentand Domestic Equipment Fabrication. Journal of Ocean Engineering and Technology, 25(2), 127-133.
  7. MSC software, 2010. MSC.NASTRAN User's Manual. MSC software, California.
  8. Kim, S.Y., Lee, D.M., Bae, J.H., Shin, S.C., Sul, C.H., 2009. Development of Bi-directional Triple-eccentric Type Butterfly Valve. Journal of the Society of Naval Architects of Korea, 46(5), 545-551.
  9. Kim, Y.J., Kim, Y.H., Woo, N.S., Kwon, J.K., 2011. Numerical Study for Development of Submerged Seawater Lift Pump. Journal of Ocean Engineering and Technology, 25(5), 21-26.
  10. Ku, N.K., Lee, J.C., Roh, M.I., Hwang, J.H., Lee, K.Y., 2012. Multi-floor Layout for the Liquefaction Process Systems of LNG FPSO Using the Optimization Technique. Journal of the Society of Naval Architects of Korea, 49(1), 68-78.
  11. Oil Company and International Marine Forum (OCIMF), 1999. Design and Construction Specification for Marine Loading Arms. 3rd ed., Witherby & Co. Ltd., London.
  12. Uniform Building Code(UBC), 1997. Vol. 2 Structural Design Requirements. International Council of Building Officials, Colorado.


Supported by : 한국연구재단