Impact mechanics of ship collisions and validations with experimental results

Zhang, Shengming; Villavicencio, R.; Zhu, Ling; Pedersen, Preben Terndrup

doi:10.1016/j.marstruc.2016.12.003

Cited by 25 publications

(12 citation statements)

References 7 publications

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“…It is valid only small rotations in actual collisions during the damage event as well as small rotations have also been studied in theoretical analysis. With these judgments, the system becomes one dimensional [11]. The final velocities of both struck and striking ships can be derived as the Equation 1. bow) and/or when the struck ship has forward speed.…”

Section: Empirical Methodsmentioning

confidence: 99%

The Determination of Collision Bulkhead Position by using Consideration of Ship Grounding Analysis

Putranto¹,

Tjprc²

2018

IJMPERD

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The ship collision case is an accident involving ship to ship damage or a ship damage only. An approach carried out to determine the effect of ship collision is by using numerical methods. Usually, an experiment method is used to verify the result of numerical method with the same model. The numerical method is based on the fundamental theories of explicit dynamics which the response of contact model is presented by time series. The ship and ground models are modeled in finite element software package. In order to obtain the same result between simulation and real condition, the ship is applied move forward to ground model. The internal energy is captured so that the stiffness of striking ship construction can be measured from this result. The ground model is assumed by using rigid body which means that the deflection and stress during simulation is neglected. From the result, it can be concluded that the effects of bulkhead position is in the 4.0 m from forepeak of ship. This position has considered that the ground model does not touch the bulkhead.

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Section: Empirical Methodsmentioning

confidence: 99%

The Determination of Collision Bulkhead Position by using Consideration of Ship Grounding Analysis

Putranto¹,

Tjprc²

2018

IJMPERD

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“…In previous work of [13], validation of analytical method presented satisfactory during comparison with experimental data by [14], and numerical results of the finite element approach. Accounting for analytical method to assess the external dynamics in ship collision, recent works by [15] presented experimental verification of the simplified coordinate system in ship collision, while [16] used this method to develop a new impact formulation for ship-iceberg interaction.…”

Section: Analytical Estimationmentioning

confidence: 99%

Nonlinear analysis of inter-island RoRo under impact: effects of selected collision’s parameters on the crashworthy double-side structures

Prabowo

Muttaqie

Sohn

et al. 2018

J Braz. Soc. Mech. Sci. Eng.

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The purpose of this paper is to study the effect of selected parameters in ship collision and extend it to assessment of structural crashworthiness on the double-side structure (DSS). A brief concept and implementation of the ship-ship interaction is presented in early discussion, which is followed by fundamental factors in numerical calculation. Initial analysis is addressed to quantify influence of several element formulations types on damage extent and simulation time. According to comparison with certain RoRo collision incident data, the fully integrated version of the Belytschko-Tsay emerges as the most similar in terms of the damage criterion of analysis. Even though ordinary type of the Belytschko-Tsay produces faster time processing, fully integrated version is still chosen as it can prevent undesired phenomena during nonlinear finite element analysis. The next analysis aims to conduct crashworthiness assessment on several regions of the target ship. Collision location and attacking velocity are determined as representative of the external dynamic parameters, while material grade is considered as the internal parameter. Assessment results of the DSS are presented in forms of the statistical calculation to obtain variance percentage, and failure sequence to understand crushing process during side collision. Result tendency indicates that the velocity is nominated as the most influencing parameters to the crashworthiness criteria of the target ship. Keywords Ship-ship collision scenario Á Nonlinear FE analysis Á Shell element formulation Á Double-side structure (DSS) Á Bow-hull interaction Á Material characterization Á Crashworthiness criteria

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“…Certain parties across the globe have paid their intention to this impact form. Zhang [1] proposed a mechanical expression to assess a structural response after a collision. These methodologies were re-conducted in recent researches by comparing the numerical method using finite element (FE) approach, such as presented by researchers from Indonesia [2], and South Korea [3].…”

Section: Literature Reviewmentioning

confidence: 99%

Impact phenomena assessment: Part II – Buffer container as a measure to reduce cargo leakage in collision

Prabowo¹,

Baek²,

Lee³

et al. 2018

MATEC Web of Conferences

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The safety of ship under collision has been developed in terms of navigational and structural aspects. These efforts are aimed to provide more safety from the internal part of a ship. However, in a collision, the external dynamics also needs to be considered, for instance velocity and location. In this study, these parameters are applied and observed regarding on a series of ship-container collision scenario. A freight container is used in the first stage and behaviours such as internal energy and effective stress are summarized. An alternative design so called buffer container is presented to offer better protection to a liquid cargo. The second stage is started by applying similar collision scenario as the first stage to the buffer container and comparing structural behaviour of this analysis. It is obtained that leakage possibility can be reduced on the buffer design as the strength has become approximately twice better than the freight container.

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Impact mechanics of ship collisions and validations with experimental results

Cited by 25 publications

References 7 publications

The Determination of Collision Bulkhead Position by using Consideration of Ship Grounding Analysis

The Determination of Collision Bulkhead Position by using Consideration of Ship Grounding Analysis

Nonlinear analysis of inter-island RoRo under impact: effects of selected collision’s parameters on the crashworthy double-side structures

Impact phenomena assessment: Part II – Buffer container as a measure to reduce cargo leakage in collision

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