针对船舶设计师关心的喷水推进装置装船应用的常见问题开展研究。首先从理论上推导了总功率相等的情况下，喷水推进装置的装船数量和总重量、占用尾板宽度与面积等的关系。然后根据实船应用经验的总结，从轴线高、尾板吃水、轴线间距等方面对喷水推进装置在船上的布置问题展开分析和讨论，得出了以下结论：增加配置数可以显著减轻重量，总重量之比是配置数平方根的倒数之比。提出应尽量减少尾板吃水以尽早消除附体阻力，并可通过增加尾鳍或分水锺以消除对船舶的航向稳定性的不利影响。这些布置建议可以使喷水推进装置与船体得到良好的匹配，发挥喷水推进的优势，提高喷水推进船的综合航行性能。
Common questions about waterjet propulsion unit installation on board were researched, which is the concern of the ship designers. First, with the same total power, the relationships between the quantity of waterjet propulsion units and transom width occupied, transom area occupied, weight of all units were derived theoretically. Secondly, based on the experiences from ship applications, the engineering matters about layout of waterjet units on the hull, which include the height of shaft line, transom draft, distance of shaft lines were analyzed and discussed. Then it comes to an important conclusion that increasing the quantity of allocation can significantly reduce weight, the total weight ratio is the reciprocal ratio of the square root of unit quantity. It is suggested that the transom draft should be reduced to eliminate the appendage resistance as early as possible, when the adverse effect on the ship's directional stability can be minimized by using deadwood or skeg. The corresponding layout suggestions can make the waterjet units fit well with the hull, give full play to the advantages of waterjet propulsion, improve the comprehensive navigation performance of ships.
2023,45(4): 9-13 收稿日期：2022-03-27
DOI：10.3404/j.issn.1672-7649.2023.04.002
分类号：U664.34
基金项目：工信部高技术船舶科研项目（工信部装函[2018]169号）
作者简介：周加建(1974-),男,研究员,研究方向为船舶喷水推进
