Numerical Model of the Large Carrying Capacity Crane Ship with the Fully Revolving Topside

Nesin, Danilo Y.; Dushko, Veronika

doi:10.1016/j.proeng.2015.01.470

Cited by 3 publications

(1 citation statement)

References 3 publications

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“…The hoisting system transient response needs to be analyzed under external interference to reduce the swing of hanging objects as far as possible. The method of multi-rigid body dynamics are adopted by most scholars to study the crane ship with the assumption that the crane ship is rigid and the deformation of the boom and sling is negligible in the dynamic response of hoisting system [7,8].…”

Section: Introductionmentioning

confidence: 99%

Modelling, Simulation and Analysis of the Crane Ship Hoisting System

Xu¹,

Li²,

Wang³

et al. 2018

Proceedings of the 2018 International Conference on Mechanical, Electronic, Control and Automation Engineering (MECAE 2018)

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Adams, Simulink, and analytics combined method is created to predict the hoisting operation of crane ships. The flexibility of the boom can be modelled in Adams with a mesh file created by Ansys APDL and 3D visualization can be fulfilled in Adams. With this method, the model of "Offshore Oil 201" is created and the effects of the environment and operation parameters are analyzed. The effect of the environmental interference is considerable, particularly the effect of the wave height. The effect of the pitch rate and rotational speed are both considerable, the pitch rate effects on the swing angle in XOZ plane more than that in YOZ plane, and the rotational speed effect more on the angle in YOZ plane. The sling length is also another point to be considered in operation. The results of the sea trail are compared with the simulation results, the error is less than 5%.

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Section: Introductionmentioning

confidence: 99%

Modelling, Simulation and Analysis of the Crane Ship Hoisting System

Xu¹,

Li²,

Wang³

et al. 2018

Proceedings of the 2018 International Conference on Mechanical, Electronic, Control and Automation Engineering (MECAE 2018)

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Maintenance practices and parameters for marine mechanical systems: a review

Kimera

Nangolo

2019

JQME

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Purpose The purpose of this paper is to review maintenance practices, tools and parameters for marine mechanical systems that can be classified as plant, machinery and equipment (PME). It provides an insight for the maintenance crew on which maintenance parameters and practices are critical for a given PME systems. Design/methodology/approach The review paper characterizes the various maintenance parameters and maintenance practices used onshore and offshore for PME and identifies the possible gaps. Findings A variety of maintenance techniques are being used in the marine industry such as corrective maintenance, preventive maintenance and condition-based maintenance. As marine vehicles (MV) get older, the most important maintenance parameters become maintenance costs, reliability and safety. Maintenance models that have been developed in line with marine mechanical systems have been validated using a single system, whose outcome could be different if another PME system is used for validation. Research limitations/implications There is a limited literature on MV maintenance parameters and maintenance characterization regarding mechanical systems. The maintenance practices or strategies of marine mechanical systems should be based on maintenance parameters that suit the marine industry for a given PME. Originality/value Based on the available literature, the paper provides a variety of maintenance framework, parameters and practices for marine mechanical systems. The paper further gives an insight on what maintenance parameters, strategies and platforms are given preference in the shipping industry.

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Analysis of heavy floating cranes and features of their operation

Ignatovich¹,

Kuzmina²,

Perepadya³

2021

JWT

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The main characteristics of offshore heavy floating cranes, which are independent navigation without tugs and the performance of cargo operations in open waters with wind and waves, are considered. The safety of navigation in these conditions can be ensured with high seaworthiness and maneuverability by giving the appropriate shape of the bow end of the hull, the minimum windage of the structure, as well as the optimal design of the topside (crane). The requirements for the design and construction of universal heavy sea floating cranes, built after 1966, are analyzed, the operating conditions, depending on the purpose, and the architectural and structural type of floating cranes with a lifting capacity of 100–900 tons are considered. When calculating the strength of the topside, the possibility of the floating crane operating with the maximum load was taken into account when the sea is rough up to three points and the wind is up to five points, taking into account the dynamic and inertial loads arising from rolling in waves, when picking up and breaking the load. In the event of an emergency breakage of the load, the structure of the topside and the boom system must exclude or minimize vibrations caused by the breakage of the load. The results of the calculation of the forces at the breakage of the load must be verified by full-scale tests of floating head cranes, for which the corresponding methods have been developed. The possibility of using the developed structure of the hull and the topside (crane) in the design and construction of modern floating cranes in the production conditions of shipyards is shown.

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Numerical Model of the Large Carrying Capacity Crane Ship with the Fully Revolving Topside

Cited by 3 publications

References 3 publications

Modelling, Simulation and Analysis of the Crane Ship Hoisting System

Modelling, Simulation and Analysis of the Crane Ship Hoisting System

Maintenance practices and parameters for marine mechanical systems: a review

Analysis of heavy floating cranes and features of their operation

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