An experimentel.study of the influence of copper alloying in an eluminium matrix on helical dislocation size and equilibrium shape has been performed and two different interpretations are proposed. It is also found that vacancy precipitation on helical dislocations is consistent with previous theor
The influence of some ship parameters on manoeuvrability studied at the design stage
✍ Scribed by Francisco Lázaro Pérez; Juan Antonio Clemente
- Publisher
- Elsevier Science
- Year
- 2007
- Tongue
- English
- Weight
- 441 KB
- Volume
- 34
- Category
- Article
- ISSN
- 0029-8018
No coin nor oath required. For personal study only.
✦ Synopsis
Collision and grounding are the most common accidents in ship operation. Some accidents are due to human failure, but several research projects have shown that a high percentage of these accidents could have been avoided if the ship have had better manoeuvrability characteristics. This paper describes how, when the shipyard select some important ship parameters and dimensions at the design stage, these set of parameters influence manoeuvrability characteristics. To obtain these effects, some IMO manoeuvres have been numerically simulated for a sample ship and a non-linear numerical model proposed by the authors to study ship manoeuvrability is described in this work. The day to day practice of a shipyard where fast modelisation and calculations are required, and modifications to the original design are quite common at the preliminary design stage, requires fast but accurate numerical models.
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