单桨运输船采用吊舱式推进器性能试验研究

Hydrodynamic Performance Study of POD on Single Screw Commercial Vessel

以已投入营运的两型单桨运输船采用常规推进与吊舱式推进方式的船模对比试验结果和相关研究资料为基础,分析研究了采用吊舱式推进器前后性能变化规律及结果成因。结果表明:单桨船舶采用吊舱式推进形式,可以做到其快速性与采用常规螺旋桨推进相当;但航向稳定性略差,可增加吊舱式推进器的挂臂等侧投影面积以提高船舶航向稳定性。被研究船在设计航速附近常用小舵角下操纵性和大舵角下回转,吊舱式推进形式与常规推进没有明显差异。在低航速或零航速下,使用吊舱式推进器船舶的操纵性有明显的优势。

Based on comparative model test results of practicing single propeller commercial ships pushed by conventional propeller with POD, this paper presents properties of them and analyses the rule of each performance. Study results show that speed performance of single propeller ship used by POD may be to some tune of used by convention propeller. But directional stability of POD is weak than rudder. This may be enhanced by increasing its project side area. Manoeuvrability of ship in small rudder angle and turning circle in large rudder angle studied by both propulsion types are no obvious difference in design speed. Manoeuvrability of POD will be significant advantage in low speed or zero speed.