摘要
The US Navy is currently considering the introduction of a Flight III variant beginning with DDG-123 in Fiscal Year 2016. The new design incorporates a new combat system and associated power and cooling upgrades. The overall system improvements increase the payload of the ship and the resulting increased displacement has a negative impact on the service lfe allowance for range, fuel consumption and sea-keeping characteristics. The present objective is to increase the hull displacement without resistance and sea-keeping penalty and with minimal modfications to the baseline DTMB-5415 design (open literature surrogate of the existing DDG-51 hullform) by using retrofitted blisters in the form of side hull expansions and a bow-bulb. The investigation makes use of high-performance CFD computing for analysis of wave cancellation mechanisms, reduced order, rapid hydrodynamic analysis codes, general purpose finite element modeling and structural integrity analysis, sea-keeping evaluation for cost and performance tradeoffs, geometric sensitivity studies and multi-objective optimization. A candidate mod!/Ied 5415 design with both blisters and bow bulb shows a resistance reduction of 11% w.r.t. the baseline 5415 in the design speed range of 15-19 knots, even though the displacement is increased by 8%, such that the transport factor is increased by 19%.
原文 | English |
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主出版物標題 | Society of Naval Architects and Marine Engineers - Transactions |
發行者 | Society of Naval Architects and Marine Engineers |
頁面 | 92-123 |
頁數 | 32 |
卷 | 122 |
ISBN(電子) | 9780939773176 |
出版狀態 | Published - 2014 |
事件 | 2014 SNAME Annual Meeting and Expo and Ship Production Symposium - Houston, United States 持續時間: 2014 10月 22 → 2014 10月 24 |
Other
Other | 2014 SNAME Annual Meeting and Expo and Ship Production Symposium |
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國家/地區 | United States |
城市 | Houston |
期間 | 14-10-22 → 14-10-24 |
All Science Journal Classification (ASJC) codes
- 海洋工程