A Model Of Ship Impact Against The Ground In The Port Water Area
Free (open access)
The existing ports are expected to handle ships larger than those for which they were designed. The main restriction in serving these ships is the depth of the port waters which directly affects the safety of a manoeuvring ship. The under keel-clearance of a manoeuvring ship in the port water area should be such that a ship moves safely. An undesired impact against the ground can damage the ship hull and block the port. Therefore, there is a need to develop a scientific method of specifying the safe under-keel clearance such that the safety of a ship will be maintained for different conditions. This article presents an assessment of navigational risk as a combination of the probability of ship impact against the ground and the resultant hull damage. Keywords: port water area, ship impact, navigational risk. 1 Introduction Criteria serve for the basis of estimation, while measures make its performance possible by means of rates. These criteria permit the qualification of accidents with damage, raising its possibility over limited values, and of the making of the control of safety levels. These are applied to designing and modernizing waterways, and defining and exploiting these conditions, and of navigation marking . It makes it possible in an optimal and economical way to build and modernize waterways elements (fairway, approach channel, entrance to port and port basin, quay, anchorage area, turning area) keeping a proper level of ship safety. Also, it is used to design ships parameters optional in the operation in limited water areas. To solution to these problems is used in the branch called marine traffic engineering. The 1970s witnessed a rapid increase in seaborne cargo transport accompanied by fast growth of the global fleet. The growth mainly consisted in
port water area, ship impact, navigational risk.