heal.abstract |
The development and acquisition of highly survivable warships is of paramount importance, especially with the current trends for cutting down defence budgets. High survivability is an important 'power multiplier' allowing a Navy to keep the number of its fleet units down to a minimum, since each one of them will be a compact low vulnerability unit that will give the best out of a naval battle. All Electric Ship (AES) features comprising Integrated Full Electric Propulsion (IFEP) as well as effectively controlled and completely electrified auxiliaries are expected to be the future key-factor for the desired survivability enhancement. In this paper an effort is made to identify and examine the critical and hence most vulnerable elements of the propulsion and electric power systems of ships as outlined by the AES-concept. Furthermore, the difficulties encountered for a quantitative assessment of a survivability index of a warship are highlighted, while an attempt is made for a qualitative survivability comparison between conventional and AES systems. Thus, the characteristic features of AES systems, namely novel ship designs, electric power distribution architectures, electric power generation schemes, modern storage means and integrated highly automated management systems, all promising great survivability improvements, are overviewed. On the other hand, certain considerations that may cancel out some of the AES theoretic perspective advantages are also stated. Copyright © IMarEST 2005 - all rights reserved. |
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