Computer Simulation of Moored Ship Motion Considering Harbor Resonance in Pohang New Harbor

This paper proposes a computational method for estimating the effect that harbor resonance has on moored ship motion. The computation of harbor resonance used the CGWAVE model, and the computation of moored ship motion used the three-dimensional Green's function method. This method was verified with field motion measurement data from actual moored ships and wave field data and down time record data from Pohang New Harbor. The resonance periods obtained from wave field data in Pohang New Harbor were 80, 33, 23, and 8 min, which were the long waves, and 42, 54, and 60 s, which were the infra-gravity waves inside the harbor slip. The simulation results for harbor resonance were compared to the actual wave field data. This study investigated whether harbor resonance has an effect on moored ship motion using simulated results of ship motion both with and without harbor resonance. In the case of harbor resonance included, moored ship motion increased by 12-400% when compared with the results without harbor resonance included. The authors found that harbor resonance has a greater effect on the surge and heave motion of a large-sized ship and on the roll and the yaw motion of a small-sized ship.

• Record URL:
  • https://doi.org/10.1061/9780784413067.145
• Availability:
  • Find a library where document is available. Order URL: http://www.asce.org/Product.aspx?ID=2147487569&ProductID=192556110
• Supplemental Notes:
  • © 2013 American Society of Civil Engineers.
• Corporate Authors:

  American Society of Civil Engineers

  1801 Alexander Bell Drive
  Reston, VA  United States  20191-4400
• Authors:
  • Kwak, Moonsu
  • Pyun, Chongkun
• Conference:
  • Ports '13: 13th Triennial International Conference
  • Location: Seattle Washington, United States
  • Date: 2013-8-25 to 2013-8-28
• Publication Date: 2013-8

Language

• English

Media Info

• Media Type: Web
• Pagination: pp 1415-1424
• Monograph Title: Ports 2013: Success through Diversification

Subject/Index Terms

• TRT Terms: Harbors; Ship motion; Simulation
• Uncontrolled Terms: Field data; Harbor resonance; Moored ships
• Geographic Terms: Pohang New Harbor (South Korea); South Korea
• Subject Areas: Marine Transportation; Terminals and Facilities; I70: Traffic and Transport;

Filing Info

• Accession Number: 01522000
• Record Type: Publication
• ISBN: 9780784413067
• Files: TRIS, ASCE
• Created Date: Apr 14 2014 4:35PM