新型浅吃水双尾鳍渔船船型的研究

AN INVESTIGATION IN A NEW TYPE OF SHALLOW-DRAFT FISHING BOAT FORM-TWIN-SKEG STERN FORM

双尾鳍船型目前普遍应用于浅吃水肥大型的运输船上，对改善其阻力、推进性能和耐波性方面均有明显的效果。然而在相对较瘦的小型渔船上未见有所应用、作者通过理论分析，在国内提出在渔船上采用双尾鳍船型。本文对浅吃水渔船的尾鳍形状设计进行了探讨，并就设计的两种不同形状的尾鳍船型进行了阻力、推进和耐波性的模型试验。结果表明；只要尾鳍设计合理，可使其阻力、推进和耐波性能优于普通的双桨渔船以及目前渔民惯用的三机三桨推进的普通渔船船型。

The paper putsforword a kind of fishing boat ship form with better seakeeping quality, speed and powering performance-twin skeg stern ship form matching twin-screw,it may get better effect. Meanwhile the paper inquires into the problem of skeg form deligning on basis of theoretical analysis, carries on.t the modeltest of resistance, propulsion and seakeeping for different skeg forms. The resultsof model test show that its performance of resistance,propulsion and seakeeping aresuperior to that of the common twin-screw fishing boat and the common triplescrew fishing boat which the fisher are accustomed to using at present in case thatthe skeg form is designed reasonably.