Fast strength assessment of mitre gates to ship impact

Buldgen, Loïc; Sourne, Hervé Le; Rigo, Philippe

doi:10.1080/13588265.2013.802146

Cited by 8 publications

(4 citation statements)

References 7 publications

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“…In the vertical case, the main difficulty is to account for the oblique trajectory followed by the vessel (a s 0). This problem has been treated by some authors, such as Tin Loi [12] or Buldgen [13]. By following the approximate theoretical procedure described in Ref.…”

Section: Global Crushing Resistancementioning

confidence: 99%

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Extension of the super-elements method to the analysis of a jacket impacted by a ship

2014

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Section: Global Crushing Resistancementioning

confidence: 99%

“…By following the approximate theoretical procedure described in Ref. [13] for example, it is possible to establish the subsequent results:…”

Section: Global Crushing Resistancementioning

confidence: 99%

Extension of the super-elements method to the analysis of a jacket impacted by a ship

2014

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“…Regarding the analytical techniques to evaluate the impact resistance of lock gates, the initial work realized by Le Sourne et al [99] has been completed and extended by Buldgen et al to plane [22] and mitre [24] lock gates. Usually, these simplified methods give a reasonable prediction of the resistance in a very short time.…”

Section: Simplified Analytical Methodsmentioning

confidence: 99%

“…These results are directly extracted from a publication made by Buldgen et al [24] on the crashworthiness of lock mitre gates. They are all based on the structure presented in Figure 4.34, but four different models are investigated.…”

Section: C4 Appendix C4mentioning

confidence: 99%

Simplified analytical methods for the crashworthiness and the seismic design of lock gates

Buldgen

2015

Ship Technology Research

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2 AbstractThe design of navigation lock gates requires to account for accidental loads such as ship impacts or earthquakes, but it is quite difficult to handle with them. The most satisfactory way to investigate their effects is to perform numerical simulations. Such an approach can be justified at the late design stage, but it is quite commonly accepted that it is not well suited during the conception process. This may be justified by the calculation and modeling efforts that are usually prohibitive. Consequently, the aim of this thesis is to develop simplified methods to circumvent these difficulties. The dissertation is divided into two main parts.

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Resistance of Plane Lock Gates Subjected to Ship Impact

Jaramillo

Geers

Buldgen

et al. 2023

Lecture Notes in Civil Engineering

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This paper presents the analysis of lock gates submitted to ship impacts. This problem is generally approached in two different ways: firstly, by the use of an equivalent static method, in which the impact is modeled by a quasi-static force, or by the use of dynamic numerical simulations, during which the progress of the ship and the temporal evolution of the impact force is taken into account. The second approach requires extensive calculation and modeling efforts, which are generally prohibitive in the early design stage.A simplified analytical method is presented to evaluate the resistance of such structures when impacted by a ship. The principle is based in the super-element method, firstly evaluating the resistance of the lock gate in local deformation mode, assuming crushing only of certain structural elements in a limited zone, located in the close vicinity of the impact. Secondly, the entire resistance of the lock gate is calculated, considering the global deformation mode, assuming a bending of the entire structure.The scientific objective is to extend this approach to lock gates which cannot currently be treated with this method, in particular those where the layout of the stiffening elements can be highly irregular. This implies to study thoroughly the global deformation modes of the structure and the plastic mechanisms involved in the energy dissipation, in order to predict a correct displacement field and resistance force.

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Fast strength assessment of mitre gates to ship impact

Cited by 8 publications

References 7 publications

Extension of the super-elements method to the analysis of a jacket impacted by a ship

Extension of the super-elements method to the analysis of a jacket impacted by a ship

Simplified analytical methods for the crashworthiness and the seismic design of lock gates

Resistance of Plane Lock Gates Subjected to Ship Impact

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