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http://dx.doi.org/10.12989/sem.2020.75.6.785

Investigation of the refined safety factor for berthing energy calculation  

Kim, Sang Woo (Offshore Plant Engineering Laboratory, Division of Naval Architecture and Ocean Systems Engineering, Korea Maritime and Ocean University)
Lee, Seung Jae (Offshore Plant Engineering Laboratory, Division of Naval Architecture and Ocean Systems Engineering, Korea Maritime and Ocean University)
Kim, Young Tae (Daewoo Institute of Construction Technology)
Kim, Do Kyun (Ocean & Ship Technology, Department of Civil and Environmental Engineering, Universiti Teknologi PETRONAS)
Publication Information
Structural Engineering and Mechanics / v.75, no.6, 2020 , pp. 785-797 More about this Journal
Abstract
As the growth of world trade has surged rapidly over the past years, the number is expected to continue growing over the coming years. Although the transportation costs can be reduced by using larger vessels, however, new berthing structures have to be constructed in order to cater for the larger vessels. This leads to a need for researching on designing a better berthing structure. For optimization of berthing structure design, we need to provide a better estimation of berthing energy than the previous methods in the existing guidelines. In this study, several berthing parameters were collected from previous works and researches. Moreover, the scenarios were selected efficiently by using a sampling technique. First, the berthing energy was calculated by executing 150 numerical simulations. Then, the numerical simulation results were compared with the results calculated by existing methods quantitatively to investigate the sensitivity of the berthing parameters and the accuracy of existing methods. The numerical method results have shown some deviation with respect to the existing method results in which the degree of deviation varies with the methods and the tendency of differences is dependent on certain berthing parameters. Then, one of the existing methods which has shown a small deviation was selected as a representative method and applied with several safety factors to obtain a suitable safety factor for the design.
Keywords
berthing energy; kinematic energy method; berthing velocity; berthing angle; safety factor;
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Times Cited By KSCI : 1  (Citation Analysis)
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1 Metzger, A.T., Hutchinson, J. and Kwiatkowski, J. (2014), "Measurement of marine vessel berthing parameters", Marine Struct., 39, 350-372. https://doi.org/10.1016/j.marstruc.2014.10.001.   DOI
2 Mostofi, A. and Bargi, K. (2012), "New concept in analysis of floating piers for ship berthing impact", Marin Struct., 25(1), 58-70. https://doi.org/10.1016/j.marstruc.2011.12.001.   DOI
3 Neser, G. and Unslan, D. (2006), "Dynamics of ships and fenders during berthing in a time domain", Ocean Eng., 33(14-15), 1919-1934. https://doi.org/10.1016/j.oceaneng.2005.10.020.   DOI
4 Paik, J.K., Kim, D.K., Park, D.H., Kim, H.B. and Kim, M.S. (2012), "A new method for assessing the safety of ships damaged by grounding", J. Maritime Eng., 154(A1), 1-20.
5 PIANC (2002), Guidelines for the Design of Fender Systems: 2002, International Navigation Association, Brussels, Belgium.
6 ROM (1990), "Maritime works recommendations - ROM 0.2-90 - Actions in the design of maritime and harbour works", Puertos del Estado, Madrid, Spain.
7 Roubos, A., Groenewegen, L. and Peters, D.J. (2017), "Berthing velocity of large seagoing vessels in the port of Rotterdam", Marine Struct., 51, 202-219. https://doi.org/10.1016/j.marstruc.2016.10.011.   DOI
8 Roubos, A., Peters, D.J., Groenewegen, L. and Steenbergen, R. (2018), "Partial safety factors for berthing velocity and loads on marine structures", Marine Struct., 58, 73-91. https://doi.org/10.1016/j.marstruc.2017.11.003.   DOI
9 Saurin, B.F. (1963), "Berthing forces of large tankers", Proceedings of the 6th World Petroleum Congress, Frankfurt am Main, Germany, June.
10 Toda, Y., Lee, Y.S. and Sadakane, H. (2002), "Numerical investigations of hydrodynamic forces acting on a ship hull under lateral low speed motion", J. Kansai Soc. Naval Architects, 238, 77-83. https://doi.org/10.14856/jksna.2002.238_77.
11 Toppler, J.F and Weersma, J. (1973), "Planning and design of fixed-berth structures for 300,000 to 500,00 DWT tankers", J. Petroleum Technol., 25(7), 764-774. https://doi.org/10.2118/3950-PA.   DOI
12 Trelleborg (2018), Brochures and Catalogs; Trelleborg Coated Systems, Lodi Vecchio, Italy. https://www.trelleborg.com
13 Ueda S. (1981), "Study in berthing impact force of very large crude oil carriers", Japanese Port Harbour Res. Institute, 20(2), 169-209.
14 Ueda, S., Hirano, T., Shiraishi, S., Yamamoto, S. and Yamase, S. (2002), "Reliability design of fender systems for berthing ship", 30th PIANC-AIPCN Congress 2002 on Institution of Engineers, Sydney, Australia, September.
15 Vasco Costa, F. (1964), "The berthing ship. The effect of impact on the design of fenders and other structures", The Dock Harbour Authority, 19(523), 524-524.
16 Yamase, S., Ueada S., Okada T., Arai A. and Shimizu K. (2014) "Characteristics of measured berthing velocity and the application for fender design of berthing ship", PIANC 33th International Navigation Congress, San Francisco, USA, June.
17 Versteegt, G. (2013), "Berthing loads in structural design", M.Sc. Dissertation, Delft University of Technology, Delft.
18 Wang, H., Li, X., Chen, L. and Sun, X. (2016), "Numerical study on the hydrodynamic forces on a ship berthing to quay by taking free-surface effect into account", J. Marine Sci. Technol., 21(4), 601-610. https://doi.org/10.1007/s00773-016-0376-z.   DOI
19 Wang, H., Sheng, X., Wang, S., Chen, L., Yuan, Z. and Wu, Q. (2017), "Numerical study on water depth effects on hydrodynamic forces acting on berthing ships", J. Shanghai Jiaotong University (Science), 22(2), 198-205. https://doi.org/10.1007/s12204-017-1822-8.   DOI
20 Wong, E.W.C. and Kim, D.K. (2018), "A simplified method to predict fatigue damage of TTR subjected to short-term VIV using artificial neural network", Adv. Eng. Software, 126, 100-109. https://doi.org/10.1016/j.advengsoft.2018.09.011.   DOI
21 Ye, K.Q. (1998), "Orthogonal column Latin hypercubes and their application in computer experiments", J. American Statistical Assoc., 93(444), 1430-1439.   DOI
22 Clarkson (2014), Clarksons Research; http://www.crsl.com
23 ANSYS (2013), Aqwa Theory Manual; Release 15.0; ANSYS Inc., Canonsburg, PA, USA. http://www.ansys.com
24 Brolsma, J.V., Hirs, J.A. and Langeveld, J.M. (1977), "On the fender design and berthing velocities", PIANC 24th International Navigation Congress, Leningrad, Russia, March.
25 BS6349-4 (2014), Maritime works - Part4. Code of practice for 52 design of fendering and mooring systems, British Standards 53 Institution; London, United Kingdom.
26 Burkhart, E.C. and Matakis, K.E. (2013), "Collection of berthing velocities and resulting design recommendations by PIANC Working Group MarCom 145", ASCE PORTS 2013, Seattle, Washington, USA, August.
27 Chen, M. and Chen, H.C. (1996), "Numerical simulation of transitional flows induced by a berthing ship", J. Offshore Polar Eng., 7(4), 277-284.
28 Fontijn H.L. (1988), "Fender forces in ship berthing", Research Report No. 88-2; Department of Civil Engineering, Delft University of Technology, Delft, Netherlands.
29 Girgrah, M. (1977), "Practical aspects of dock fender design", PIANC 24th International Navigation Congress, Leningrad, Russia, March.
30 Grabe J. (2012), Recommendations of the Committee for Waterfront Structures Harbours and Waterways EAU 2012, (9th Edition), John Wiley and Sons, Hamburg, Germany.
31 Headland, J.R. (1992a), "Design of Fender systems using a numerical berthing model", Permanent International Association of Navigation Congresses Bulletin No.77.
32 Headland, J.R. (1992b), "A Computational berthing model for the design of fender systems", ASCE Proceedings Specialty conference PORTS'92, Seattle, Washington, USA, July.
33 Hein, C. (2014) "Berthing velocity of large container ships", PIANC 33th International Navigation Congress, San Francisco, USA, June.
34 Kim, D.K., Perdersen, P.T., Paik, J.K., Kim, H.B., Zhang, X.M. and Kim, M.S. (2013a), "Safety guidelines of ultimate hull girder strength for grounded container ships", Safety Science, 59, 46-54. https://doi.org/10.1016/j.ssci.2013.04.006.   DOI
35 Kim, D.K., Yu, S.Y. and Choi, H.S. (2013b), "Condition assessment of raking damaged bulk carriers under vertical bending moments", Struct. Eng. Mech., 46(5), 629-644. https://doi.org/10.12989/sem.2013.46.5.629.   DOI
36 Kong, G.Y., Le, Y.S. and Lee, S.M. (2004), "A study on the modeling of transitional lateral force acting on the berthing ship by CFD", Korea Soc. Mech. Eng., 18(7), 1196-1202. https://doi.org/10.1007/BF02983294.
37 Lee, S.J. (2008), "The effects of LNG-sloshing on the global responses of LNG-carriers", Ph.D. Dissertation, Texas A&M University, Texas.
38 Magda, W. (2019), "Elastic fender-dolphin interaction for economic design of berthing dolphins", J. Waterway, Port, Coastal, Ocean Eng., 145(3), 0419007. https://doi.org/10.1061/(ASCE)WW.1943-5460.0000511.
39 Kim, D.K., Kim, H.B., Park, D.H., Mohd, M.H. and Paik, J.K. (2019), "A practical diagram to determine the residual longitudinal strength of grounded ship in Northern Sea Route", Ships Offshore Struct., 15(7), https://doi.org/10.1080/17445302.2019.1667113.
40 Kim, D.K., Kim, B.J., Seo, J.K., Kim, H.B., Zhang, X.M. and Paik, J.K. (2014), "Time-dependent residual ultimate longitudinal strength-grounding damage index (R-D) diagram", Ocean Eng., 76, 163-171.   DOI