Crane Modeling and Simulation in Offshore Structure Building Industry

Abstract

Abstract-To increase the lifting capacity and minimize the cost and time for building a ship and offshore structure, block lifting with multi-cranes becomes more and more danger. In this paper, therefore, dynamic response analysis of the multi-cranes is performed for block lifting operation. By this simulation, one can confirm the dynamic effects, such as dynamic motion and load, to prevent fatal accidents during the multi-crane operation. The crane system consists of several bodies. These bodies are connected with various types of joints and wire rope. To carry out the dynamic simulation, therefore, the crane system is modeled as a multi-body system. There are several types of crane, such as a goliath crane, jib crane, and floating crane, etc. Among them, the floating crane is operated on the sea water. Therefore the hydrostatic force and linearized hydrodynamic force are considered as the external forces acting on the floating crane. Using the dynamics simulation program developed in this paper, a dynamic response simulation of several cases of block lifting with multi-cranes are carried out, and the simulation results are validated by comparing them with the measured data from the shipyard. Moreover, the simulation results can be applied to the structural analysis for evaluate the dynamic effects on the block. Index Terms-Dynamic simulation, modeling and simulation, multi-body system, large scale manufacturing, structural analysis.

Virtual prototyping for maritime crane design and operations

“…Terashima presented a virtual plant of a shipboard crane combines CFD with mechanical dynamics [13]. Ku developed a dynamics kernel for multi-body systems considering external hydrostatic and hydrodynamic effects for offshore crane operations [14]. Lee presented the dynamic response of a floating crane and a suspended heavy cargo considering the nonlinear effect of hydrostatic force [15].…”

A Study on the Simulation-based Design for Optimum Arrangement of Buoyancy Modules in Marine Riser System

“…Sohn and Shin(1999) 그 외에도 부유식 플랫폼, Topside 기자재 등의 설계, 실험, 검 증 등을 위해 시뮬레이션 기반 설계 기법이 도입되고 있다 (Havard, 2012;Cang et al, 2013;Song et al, 2014;Ku et al, 2014). 특히, 해양플랜트 구조물은 해양 하중, 구조물 강성, 유체 저 항력, 해양환경 등의 복합 하중이 작용하기 때문에 실제와 유사 연구가 많이 수행되고 있다 (Cha et al, 2010;Ku et al, 2014;Wang et al, 2015 (Hong, 1992;Atadan et al, 1997;Jung et al, 2012;Park et al, 2015). 해저 광물자원을 채 광하는 심해저 통합 채광 시스템( …”

Virtual prototyping system for maritime crane design and operation based on functional mock-up interface

“…The use of the simulators for product and system design and analysis however is rather limited. A few case studies were presented in the last few years, and solved certain parts of the problem using individual approach [3], [4].…”