第34卷第1期 2011年6月
上海船舶运输科学研究所学报
JOURNAL OF SHANGHAI SHIP AND SHIPPING RESEARCH INSTITUTE
文章编号：1674-5949(2011)01-0015-06
Vol. 34 No. 1 Jun.2011
螺旋桨诱导船体表面脉动压力预报的试验研究
伍锐，李盛，沈浩，郭永崧，陈洋
（上海船舶运输科学研究所航运技术与安全国家重点实验室，上海200135）
摘要：研究了螺旋浆诱导的船体表面脉动压力试验预报值随空气含量变化的规律及螺旋浆模型空泡形态随含气量变化的规律，并与实桨空泡对比分析；探索了脉动压力试验预报与实测量值最接近的空气含量控制准则；比较
泡形态，与实船测量观察结果进行对比，并就伴流场修正对螺旋浆诱导的船体表面脉动压力试验预报的影响作了
操讨；研究了螺旋桨诱导的船体表面脉动压力的预报值随桨模试验转速变化的规律。关键词：螺旋浆；激报力；空泡；脉动压力；伴流
中图分类号：U664.33
文献标志码：A
Experimental Study ofPredictingPropeller-Induced
ShipHullPressureFluctuation
WURui，JISheng，SHENHao，GUOYongsong，
CHENYang
(National Key Laboratory in Technology and Safety of Navigation, ShanghaiShipand ShippingResearchInstitute，Shanghai200135，China)
Abstract: To improve Lab prediction of propeller induced pressure fluctuation, three of the main influence factors are studied in the SSSRI cavitation tunnel. The law of variation of propeller-induced ship hull pressure fluctuation due to different tunnel gas contents is studied. The law of propeller model cavitation pattern variation is also observed at different gas contents, compared with that of its corresponding full-scale propeller, The norm of tunnel gas content is explored to fit the experimental prediction with its corresponding full scale test, Then, the experimental prediction of propeller-induced ship hull pressure fluctuation and cavitation pattern in ship model wake was compared with that in amended wake by HOEKSTRA method, comparative analysis to the full scale propeller is also given, The influence of amendment of the wake field is explored for experimental prediction of the propeller-induced ship hull pressure fluctuation. Finally, the law of experimental prediction variation of propeller-induced
ship hull pressure fluctuation due to different model rotate-speed is studied. Key words: propeller; excitation force; cavitation; pressure fluctuation; wake
0引言
20世纪60年代前后，随着船舶向大型化和高速化发展，船舶舰部的剧烈振动时有发生，经研究发现，绝大多数情况下，船舶舰部发生剧烈振动的根本原因在于螺旋浆负荷的增加，以及螺旋浆在船舰桨盘面处不均匀流场（主要由船舶瞩部线型决定）工作时，发生了局部非定常空泡，引起变幅很大的脉动压力，即螺旋桨激振力剧增(1-2)。
在螺旋桨激振力试验预报实践中，经常发现国内外不同实验室或同一个实验室在不同时间，对同一条船收稿日期：2011-01-05
作者简介：伍万方数据
锐（1983-)，男，四川省内江市人，研究实习员，硕士，主要从事船舶水动力研究。