Volume 2 Issue 1
Authors: N.A. McPherson
Abstract: A review has been undertaken to demonstrate the need for on-going research programmes in the shipbuilding industry. There will always be overlap with other industry sectors, and that is inevitable. Work that has been completed is discussed and areas for further investigation are proposed. In addition, the structuring of research projects for shipyard welding has been critically appraised. This has identified the industrialisation phase as being a significant problem area. Overall there is a need for continued real research in shipyard welding, but there is a need to restructure how academic-industry projects are functioning. Much of what is discussed has focussed on potential productivity improvements and the reduction of waste, which in some cases would be rework.
Keywords: Welding; Laser Welding; Friction Stir Welding; Gas Shielding; Modelling; Distortion
Authors: Xinping Yan; Zhenglin Liu; Chengqing Yuan; Conglin Dong
Abstract: The marine propulsion system is the heart of the ship. Its reliability will directly affect the safe navigation and operating costs of ship. Predicting and finding the faults of the marine propulsion system in time is one of the key technologies in marine field. However, there are few reports on this issue. Focusing on the study of comprehensive reliability for the marine propulsion system, this study analyses operation environments of the marine propulsion system firstly, and then expounds the comprehensive reliability research connotation. Fault Tree Analysis (FTA) is used to assess the reliability of the marine propulsion system based on the function flow diagram. According to the fault tree of the marine propulsion system, the marine engine system is taken as an example to assess its reliability by the accumulative failure probability. The result shows that FTA can assess the reliability of the marine engine system effectively within a period of time, but it cannot assess its whole life. It is believed that the knowledge gained in this study will provide the theoretical reference for research on comprehensive reliability of marine propulsion system and guide for developing comprehensive technology of combining life prediction, fault early warning, maintenance remission and reliability design for protecting the ships completing their missions reliably and safely.
Keywords: Marine propulsion system; Reliability; Fault tree analysis; Failure probability
Authors: Julia Schellnock; Reinhard Mauermann; Markus Israel
Abstract: Clinching as an alternative joining technology to welding today is restricted to thin sheet metal. There is no experience in clinching thick sheets. Thus the need arises to predict the process conditions by experimental and numerical analysis. This paper demonstrates investigations in both fields to understand the chances and limits of thick sheet clinching in shipbuilding industry.
Keywords: Joining Technology; Thick Sheet Clinching; Processing Time; Fatigue; Distortion; Accessibility
Authors: NguyenAnh Tuan; Vu Ngoc Bich; VoTrong Cang
Abstract: The intelligent solutions based on simulation for connecting the design and the production stages help to increase the production efficiencyof shipyards with lower cost and hand-over shorter.This paper reviews the CAD/CAM projects in shipbuilding industry of development shipbuilding nations in Asia and the development trends of CAD/CAM projects in shipbuilding of Vietnam. These solutions include Accuracy Control and Erection Forecasting Simulation Systems, Advanced Outfitting Design System and Plant Simulation will be analysed by Asia shipyards’ experience in practice.These contents should be prepared to put into the curriculum of shipbuilding engineering at the universities teaching specialized shipbuilding engineering in Vietnam.
Keywords: CAD/CAM; Simulation; Shipbuilding; Education
Authors: Vo Anh Dung; Nguyen Anh Tuan; Vu Ngoc Bich; VoTrong Cang
Abstract: From concept to deployment, the ship production process requires innovative solutions that will increase efficiency, lower costs, and provide support throughout the life cycle of the ship. World Shipyards experience with new ship construction and production help us to meet challenging requirements. The ship production service offerings include: ship design and assembly, materials planning and procurement, information management, etc. This paper will explain how to build the 3D support system for shipbuilding process in the small to medium sized shipyards in Vietnam.
Keywords: 3D Modelling; Support System; Digital Shipbuilding; Shipyard.